Showing posts with label beach vitex. Show all posts
Showing posts with label beach vitex. Show all posts

Monday, October 12, 2009

Week of October 12, 2009

Updated 10/17. Newest articles are at the bottom of the post.
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Goats help planned rec center take a bite toward progress


Animals clear the weeds for planned recreation, environmental center in city's Druid Hill Park

By Meredith Cohn, BaltimoreSun.com

goatsThe decrepit mansion once served as home to the president of the Maryland Zoo in Baltimore, but two decades of brush has grown and, along with vandals, has made it uninhabitable.

Cue the goats.

In what's the first step to a $10 million project to transform this piece of Druid Hill Park into an environmental and recreational center for the city, the four-legged weed whackers have cleared a half-acre ring of ivy and other invasive species. The herd of 40 will be brought back to clear the rest of the 9-acre parcel that few have used, legally anyway, for years.

"It's been an eyesore and has all sorts of unsavory activity going on," said Jean DuBose, director of development and promotions for the Parks & People Foundation, a Baltimore nonprofit group that has undertaken the project. "Most people don't even know it's part of the park. But soon it will be a great resource in the city." [...]

To get started, and even get near the mansion, the foundation needed to clear the overgrowth. Human labor might have been too expensive. The fastest and cheapest way to clear brush would have been herbicide, said Brian Knox, the supervising forester for Ec

o-Goats, the Davidsonville-based firm that supplies the herd. [...] The eco-friendly goats cost about $300 for the first half-acre. [...]

Read the full story at link.

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What if tree-killing bugs chomp Adirondack Forest Preserve?

By MIKE LYNCH, Adirondack Daily Enterprise Outdoors Writer

RAY BROOK, NY - State officials are grappling with how to best proceed if tree-killing forest pests reach the Adirondack and Catskill Forest Preserve, and it appears a constitutional amendment is low on their priority list.

One of the main methods for getting rid of pests such as the Asian longhorned beetle has been to cut down the trees and chip the wood to small pieces. This method raises legal questions here in the Park because Article XIV of the state Constitution prohibits the cutting of live trees and removal of timber on the Forest Preserve.

Because of the legal complexities, a collection of state officials, scientists and environmental advocates called the Forest Preserve Advisory Committee has been studying the issue.

"There was a consensus among group members that a constitutional amendment would be a last resort," said Rob Davies, director of lands and forests for the state Department of Environmental Conservation. "I think there was a reluctance to the idea of a constitutional amendment, to try to address ahead of time a forest invasion in the Forest Preserve."

Davies was speaking to the state Adirondack Park Agency Thursday during a special presentation on invasive species. He said the Asian longhorned beetle, because of its ability to kill most hardwood trees including maples, could be the most devastating to the Park. This beetle is not new to New York, however; outbreaks of it have been seen in the New York City area since 1996.

The emerald ash borer, on the other hand, is quickly spreading eastward from the Midwest and wiping out ash trees as it goes. Only 2 percent of the Adirondack Park's trees are ash, state officials say, but the ash borer's speed is raising awareness of the danger posed by all invasive tree pests.

Davies said the committee recommended a revision of currently existing guidelines for fighting invasive species and also amending the DEC's incident command system for responding to emergencies should be done first; he expects work will begin on this soon.

Amending the State Land Master Plan is another consideration.

Davies said one reason a constitutional amendment is not considered a good strategy is that it requires two successful votes of the state Legislature and also passage by the people in a statewide general election. A pest could show up in the Forest Preserve well before such an endeavor is undertaken.

"I think there was a recognition that the timing of a constitutional amendment doesn't work," Davies said. "We could have emerald ash borer here next week or next year. You're not going to have a constitutional amendment for years."

Plus, Davies said, the DEC could fight tree-killing pests with the current laws. Davis said there is enough legal precedent to cut trees and take other measures on the Forest Preserve in cases where it is necessary to save the forest.

"The fact that we don't have a constitutional amendment in hand today doesn't stop us from taking action tomorrow," Davies said.

He did say that a constitutional amendment may be considered as part of a long-term strategy.

Another reason from shying away from the constitutional amendment was that the committee members were concerned they could do more harm than good by revising Article XIV.

But APA Commissioner Lani Ulrich, of Old Forge, expressed concern that perhaps the group was limiting their options and suggested "possibly expanding the folks that are around that table and having that conversation again."

"I'm concerned about what kind of Forest Preserve we would have left if we didn't have every (tool) to fight this," Ulrich said.

Steve Sanford, director of the DEC's office of invasive species coordination, defended the decision to not immediately pursue a constitutional amendment. He told the APA he originally favoring such an action but changed his mind.

"I gave heed to the judgment of a lot of veterans in the room who said, 'You're opening Pandora's Box. We could wind up with an Article XIV that is less useful than the one that exists today,'" Sanford said.

Read the story at link.

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Invasives a growing threat to Adirondacks

North Country Public Radio

Adirondack Park Agency commissioners were given a status report yesterday on what’s considered to be the biggest threat to the ecology of the Adirondacks.

Invasive species like milfoil and phragmities are spreading fast throughout the Park, clogging waterways and taking over wetlands.

Hillary Smith is director of the Adirondack Park Invasive Plant Program. “This threat of invasive species is worsening,” she said. “I saw a real window of opportunity in the Adirondacks and even in my short time here that window is closing. There still are lots of opportunities for us. But the reality is the situation is very much an urgent one and it’s a growing problem.”

Within the last two weeks, an invasive called spiny water flea, which can ruin fisheries, was found in Great Sacandaga Lake and Peck’s Lake, both in the southern Adirondacks. A record number of yellow iris, which invades wetlands, were also found in the Park this year. And milfoil infestations spread to more Adirondack lakes, including Lake Placid.

Smith said their ability to fight back and eradicate invasives is being put to the test. “With every new invasive that makes it through the borders,” she said, “we have an increasing demand for management, increasing demand for spread prevention measures and increasing demand for resources that we all know are very tight at this time.”

Last year the state created an Office of Invasive Species Coordination within the Department of Environmental Conservation.

But the program’s director, Steve Sanford, told agency commissioners that funding for the effort was less than promised. And he said the money was tied up in a battle over the state’s Environmental Protection Fund. “We had planned to be able to spend $5 million, the trouble is there’s only $3 million we can use,” he said. “We had to make some decisions yesterday about what we’re going to go forward with. It’s not where we hoped to be, but at least the faucet’s back on again it was shut off for 11 months.”

Thursday’s meeting also included discussion of the emerald Ash borer and the Asian longhorn beetle, which threaten Adirondack forests. DEC Lands and Forests Director Rob Davies says so far the insects haven’t been found in the Park.

But he said their impact on the region’s ecosystem and economy could be devastating, “As you can imagine, the longer the pest is around, the greater the risk it is going to get out, it is going to impact our maple sugar industry and get into maple sugar stands.”

Removing infected trees could be difficult in the forest preserve if an outbreak occurs, because of environmental rules. Davies said the DEC is working to come up with new rules and guidelines for fighting invasives in the Park.

Read the story and listen to audio at link.

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Announcement and Call for Abstracts
for the 17th International Conference on Aquatic Invasive Species

This is an announcement and call for abstracts of oral presentations and posters for the 17th International Conference on Aquatic Invasive Species that is being hosted by the U.S. Bureau of Reclamation, and held at the Westin San Diego, San Diego, California from August 29 to September 2, 2010. Please note that the abstract submission deadline is Friday, December 11, 2009.

The early registration deadline for the conference is June 25, 2010.

Elizabeth Muckle-Jeffs
Conference Administrator
The Professional Edge
1027 Pembroke Street East, Suite 200
Pembroke, ON K8A 3M4 Canada

Email: elizabeth[at]theprofessionaledge.com
Web: www.theprofessionaledge.com

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New invasives positions at the Institute for Regional Conservation

For information, contact Keith A. Bradley, bradley[at]REGIONALCONSERVATION.ORG

Institute for Regional Conservation
22601 S.W. 152 Avenue
Miami, Florida 33170

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Great Lakes group seeks action against carp threat

By TINA LAM, FREE PRESS STAFF WRITER

A coalition of Great Lakes protection groups called today for emergency action to prevent flooding in the Des Plaines River, where Asian carp have invaded and which sits 100 feet from an electric barrier to keep the carp out of Lake Michigan.

Sandbags or concrete barriers need to be put up along the river to prevent the carp from escaping from the river into the canal above the barrier, the groups said.

"This is a natural disaster waiting to happen,” said Jennifer Nalbone of Great Lakes United. “We need to respond to it like we would respond to a hurricane."

The urgent threat is that heavy rains, such as those the region experienced in September 2008, could flood the river enough that the carp could jump into the canal above an electric barrier, giving them free access to the Great Lakes. The ferocious silver carp grow to 100 pounds, threaten boaters and jet-skiers by leaping out of the water and injuring them, and could destroying the food web in the Great Lakes because they’re voracious eaters. They escaped from southern fish farms decades ago and have made their way to the edge of the Great Lakes. [...]

Read the full story at link.

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Report Documents the Risks of Giant Invasive Snakes in the U.S.

DOI. United States Geological Survey.

Five giant non-native snake species would pose high risks to the health of ecosystems in the United States should they become established here, according to a USGS report released. The report details the risks of nine non-native boa, anaconda and python species that are invasive or potentially invasive in the U.S. Because all nine species share characteristics associated with greater risks, none was found to be a low ecological risk. Two of these species are documented as reproducing in the wild in South Florida, with population estimates for Burmese pythons in the tens of thousands.

Read the full story and the report at link.

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Thirty Groups Join Together to Harvest the Seeds of Change

Effort Underway to Restore Long Island’s Native Grasslands and the Wildlife they Support and Make Plants Commercially Available to Public

Riverhead, NY — October 15, 2009 — The Long Island Native Grassland Initiative (LINGI), an organization of more than 30 non-profit organizations, governmental agencies, and nursery professionals, including The Nature Conservancy, harvested the "seeds of change" today in Riverhead. The group, which has been restoring Long Island’s declining native grasslands for the wildlife species that depend on them, gathered seeds from mature plants which will be used to propagate next year’s crop.

Grasslands and the birds and wildlife that depend on them are the single most threatened habitat on earth due to development and the encroachment of invasive plant species. [...]

“Until now, it’s been difficult, if not impossible to find local native grasses for sale,” said project lead Polly Weigand, Soil District Technician for Suffolk County Soil and Water Conservation District. “Our ultimate goal is to provide a source of native plant material –as an alternative to cultivars and hybrid plants –for use in landscaping, restoration, grassland establishment, roadside plantings, biofuel programs, and nurseries.” [...]

Read the article at link.

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A downloadable resource that may be of interest to some of you

BIOLOGY AND CONTROL OF AQUATIC PLANTS
A Best Management Practices Handbook


Lyn A. Gettys, William T. Haller and Marc Bellaud, editors

Prepared by:
Aquatic Ecosystem Restoration Foundation
3272 Sherman Ridge Rd
Marietta, GA 30064


Ann Bove
VTDEC
Aquatic Invasive Species Management
(802) 241-3782
ann.bove[at]state.vt.us

This message is brought to you as a service of the Northeast Aquatic Nuisance Species Panel.

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Update on Maine hydrilla infestation

Here is an update concerning the recent discovery of hydrilla in Damariscotta Lake, Maine.

· DEP divers have installed benthic barriers on patches of hydrilla that have spread to the cove just outside of the infested lagoon. No tubers have been detected on the plants outside of the lagoon.

· DEP is currently placing stone riprap across both entrances to the infested lagoon to create a strong physical barrier between the infestation and the rest of the lake.

· This week, DEP will begin the process of manually removing and disposing of the hydrilla in the infested lagoon.

· Roberta Scruggs has written an excellent article on the hydrilla infestation in the recent issue of the LEA Milfoil Update newsletter. To view the article on line please visit http://www.mainelakes.org/documents/Milfoil%20newsletter%209_09.pdf

· According to Damariscotta Lake Watershed Association’s Alice Phillips, “Volunteers have come out of the woodwork to help survey the lake and help us determine if there are any other infested areas. Roughly 50% of the lake has now been surveyed. We are so appreciative of the help!”

· Forty individuals have answered DLWA’s call for help. Members of the DLWA survey team include trained VLMP Invasive Plant Patrollers and others from the Damariscotta Lake area, plus a cadre of certified Plant Patrollers from ”away.” To date no additional invasive plants have been observed.

· This year’s survey season is swiftly fading, but we may be lucky and get a few more days of prime survey weather. WE ARE STILL LOOKING FOR TRAINED PLANT PATROLLERS TO ASSIST WITH THIS SURVEY. If you think you can help, please contact Alice Phillips at DLWA, dlwastaff[at]roadrunner.com.

· There are other ways you can get involved. Is your lake community actively working to prevent the spread of aquatic invaders? Do you have a “well oiled” system in place for detecting aquatic invaders as soon as possible after introduction? If the answer to either of these questions is no, please contact the VLMP at vlmp[at]mainevlmp.org today. We look forward to working with you!

Thanks again!

Roberta Hill
Program Director
Maine Volunteer Lake Monitoring Program's Center for Invasive Aquatic Plants


Below is the previous announcement, dated September 28, 2009:

Dear Maine Lake Monitors:

I am writing to inform you of Maine’s latest confirmed invasive aquatic plant infestation. Hydrilla (Hydrilla verticillata) has now been confirmed in Damariscotta Lake. Hydrilla, often referred to as the “worst of the worst” invasive aquatic plant threatening aquatic ecosystems worldwide, was discovered in a small cove along the western shore of Damariscotta Lake, by Damariscotta Lake Watershed Association (DLWA) member and VLMP Invasive Plant Patroller, Dick Butterfield. There is no way of knowing at present, how widespread this plant may be in the lake, but a preliminary survey of nearby coves uncovered no additional invasive plants, providing hope that Mr. Butterfield may have detected the pioneer colony.

This is the kind of discovery that all Plant Patrollers train and practice for, but dread the thought of ever actually making. On the good side, this discovery provides clear and concrete evidence of the effectiveness and value of citizen based lake monitoring. Maine’s early detection system, largely powered by trained and dedicated volunteers, is saving Maine lakes. Here is a brief summary of how things have unfolded to date:

September 20 – Dick Butterfield gathered his gear, slipped into his kayak and began the task of surveying the shoreline to the north and south of his property on the west side of the lake. At one point, he paddled into a small (0.3 acre) shallow cove, and was instantly alerted to something that “was not right.” A dense carpet of plants filled the cove. According to Dick, the growth was so dense it looked “solid enough to walk on.” Using the identification keys he received with his Invasive Plant Patrol training, Dick soon came to the realization that he may have come upon one of the invasive plants of concern. He carefully bagged a sample and sent it to the VLMP for confirmation.

September 22 - Dick’s plant specimen is received by the VLMP, and its identification is tentatively confirmed.

September 23 - Maine Department of Environmental (DEP) and VLMP staff meet on site with Dick and partners from Damariscotta Lake Watershed Association to conduct a preliminary assessment of the infestation and to collect more samples for a confirmed identification.

September 24 - DEP divers install containment screens across the mouth of the infested cove to prevent hydrilla fragments from migrating into greater Damariscotta Lake. VLMP and DLWA begin to mobilize trained Invasive Plant Patrollers from Damariscotta Lake and elsewhere in the state to begin monitoring nearby coves to determine the scope of hydrilla in the lake.

This is where you come in . . . WE URGENTLY NEED YOUR HELP!! There are not many days left in the season to conduct surveys. Please call VLMP at 783-7733 or vlmp@mainevlmp.org or Alice Phillips at DLWA (549-3836, dlwastaff@roadrunner.com) today to learn how you can get involved.

Only one other water body in the state, Pickerel Pond in Limerick, is infested with hydrilla. In total, 31 out of Maine’s 5,700 ponds and lakes are known to contain an invasive aquatic plant species.

Since the first Invasive Plant Patrol workshop was offered by the VLMP in 2001, Over 2000 individuals have been trained through the program. Trained IPP volunteers are responsible for the majority of all invasive aquatic plant screening surveys being conducted in the State of Maine. The VLMP’s Invasive Plant Patrol Program is funded by boater participation in Maine’s Lake and River Sticker Program and private donations.

Thank you all, for keeping your eyes on the plants.

Roberta Hill
Program Director
Maine Volunteer Lake Monitoring Program's Center for Invasive Aquatic Plants

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Invasive vines assault East Coast beaches

By Oren Dorell, USA TODAY

beachvitexA fast-growing vine imported from Korea to stop massive erosion of sand dunes — home to sea turtle hatchlings and such shore birds as plovers — is destroying dunes in the Carolinas and threatens to creep into beaches up and down the East Coast.

The beach vitex, a woody plant with waxy leaves and a pretty purple flower, was planted widely along the Carolina coast after Hurricane Hugo ravaged beaches and dunes in 1989.

States wanted to act fast because, aside from being a nesting site for shore birds, dunes help hold back storm waters.

The vine proliferated, but there were unforeseen consequences. The plant's thickness harms nestlings, and its shallow root system fails to hold dunes together.

"They really flubbed it on this one," said Randy Westbrooks, an invasive-species prevention specialist for U.S. Geological Survey.

Beach vitex was promoted by J.C. Raulston, then-director of the North Carolina State University arboretum, because it thrives on nutrient-poor, sandy soils and grows fast. With an average growth rate of 60 feet a year, the vine can completely cover dune systems, said Melanie Doyle, a horticulturist at the North Carolina Aquarium at Fort Fisher.

Betsy Brabson, an artist and sea turtle advocate in Georgetown, S.C., said beach vitex with all its vines and runners creates such a tight network that sea turtles can't nest.

"I don't want something like beach vitex to cover the dunes for miles and miles and then we have no sea turtles," said Brabson, who heads the South Carolina Beach Vitex Task Force.

And, unlike the native sea oats and other grasses that people are used to seeing on dunes, beach vitex doesn't help dunes grow into a high barrier against storm surges, Doyle said.

This year the North Carolina Department of Agriculture & Consumer Services declared the plant a "noxious weed," banning it from being sold or planted.

Crews have fanned out across coastal North and South Carolina to eradicate it, cutting the plants with machetes and dabbing them with a herbicide.

Indications are that the eradication may be tougher than first thought.

Isolated strands of the vine have been found in Georgia, Florida and Alabama.

Members of the Beach Vitex Task Force thought they were on the road to victory against the invader until a "real bombshell" was discovered in Maryland, said Lee Rosenberg, environmental services manager for Norfolk, Va.

This month, a U.S. Park Service biologist reported beach vitex in the Maryland side of Assateague Island National Seashore, home to about 300 wild ponies. Westbrooks suggests that the plant's seeds are transported by ocean currents.

Rosenberg said he believes migratory birds are behind the propagation.

"That means any area north and south is subject to being colonized by beach vitex just by seeds being brought by birds," Rosenberg said. [...]

Read the full story at link.

Photo by Hyunsoo Leo Kim, The (Norfolk, Va.) Virginian-Pilot, via, AP.

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New U.S. Army Corps of Engineers Invasive Species Policy

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Monday, March 16, 2009

Week of March 16, 2009

Updated 3/20
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Vitex eradication effort gains traction

Group tallies past year's accomplishments

By Gareth McGrath, StarNewsOnline.com

Fort Fisher, North Carolina - The invasive plant has been discovered in Virginia and in places in North Carolina thought to be vitex-free.

But that's not necessarily a bad thing, since it shows that the educational and outreach efforts of the Carolinas Beach Vitex Task Force about the menace posed by the foreign invader are working.

It also shows, however, that there's a lot of work to do to eradicate the shrub. It is native to the Pacific Rim and was once viewed as the savior of the coast, but it's turned out to be a huge biological menace.

On Friday members of the task force gathered at the N.C. Aquarium at Fort Fisher to celebrate the past year's successes and discuss the remaining challenges facing the multi-state effort to eradicate beach vitex.

Among the 2008 accomplishments included getting North Carolina to declare beach vitex a noxious weed, making it illegal to be sold or possessed by nurseries or individuals, and securing a $128,000 grant for coastal eradication and educational efforts.

But Melanie Doyle, the state's beach vitex task force coordinator and horticulturist at the aquarium, said there's been an even bigger success over the past year.

"What I'm most proud about is nothing's been mandated by anyone," she said, ticking off the local and voluntary support up and down the coast that the task force has received in promoting eradication efforts. "This has all come about because of people who care."

But with greater awareness of the threat posed by vitex has come the reality of how big the problem is in North Carolina.

"We've got vitex in the northern part of the state," said Dale Suiter, a Raleigh-based biologist with the U.S. Fish and Wildlife Service. "Just a year ago, we didn't know that."

So far there are more than 400 known locations, including worrisome outbreaks along inland waterways that dramatically increases the amount of shoreline to survey. Link

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Fire service's newest toy burns invading grasses on Mullica River, NJ

By LEE PROCIDA, PressofAtlanticCity.com

WASHINGTON TOWNSHIP, NJ - The thumping sound of helicopter blades preceded the state Forest Fire Service’s Bell 206 JetRanger as it flew south over the Mullica River and turned to survey Hog Island, where it burned 132 acres of reeds Friday morning.

Hanging out the side was Rob Gill, an aerial ignition specialist, who would be operating the service’s new fire-starting device mounted to the helicopter, “The Red Dragon.”

Generically referred to as a plastic-sphere dispenser, the dragon is filled with paintball-like orbs containing potassium permanganate. When turned on, the machine injects the balls with antifreeze and drops them to the ground, where the mixture of chemicals bursts into flames about a minute later.

The group recently cooperated with the U.S. Department of Fish and Wildlife to spray herbicide over an infestation of phragmites, and is now paying the fire service a few thousand dollars to burn the invasive plants away to make room for native flora and fauna.

“Global warming aside, phragmites is the No. 1 threat to the health of our estuaries,” said Emile DeVito, manager of science for the NJ Conservation Foundation, who was familiar with Friday’s project. “It basically consumes all the habitat and virtually wipes out all the species.”

On the Atlantic County bank of the river, a crowd of trucks and people assembled to watch the blaze. A red fire service truck was parked near an Egg Harbor City police SUV in case the fire jumped the water, and a couple other pickup trucks were around from the locals fishing.

Continued at Link

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Weed removal money sought in Massachusetts

By JOHN APPLETON, The Republican

BRIMFIELD, MA - The Lake Sherman Association is asking the town for financial help while also seeking grants to cover the $10,300 cost of removing invasive weeds which have been dramatically spreading the past few years.

Association president Robert Chevalier said the $10,300 figure is based on a price quote from Lycott Environmental, Inc., of Southbridge, MA for a chemical treatment this spring to wipe out what has been identified as aquatic variegated milfoil.

The 55-member lake association is basing its case for financial assistance from the town in part on the fact that the town has a boat launch at the pond and that people go in swimming from the launch area.

"It's a landmark for the town and for anyone who is close to this town," said David W. McVeigh, a member of the association.

"We are trying to preserve it in any way we can," McVeigh said.

The association has applied to the Norcross Foundation for a grant for the weed eradication work and is considering other grant possibilities.

"We have been working on trying to get funding for three or four years," said Janet L. Hastings, the association vice president. Association members told the selectmen last week that the weeds already interfere with swimming and boating and, if left unchecked, they can spread to the point of choking the lake, which is only 12 feet deep at its deepest point. Link

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Waging war on invasive plants in Connecticut

By Keila Torres, ConnPost.com

Invasive plants are taking over the state's parklands and killing off native species, throwing fragile eco-systems into turmoil as wildlife is starved of its natural food source.

Invasive species -- including Oriental bittersweet and Japanese barberry -- have become a widespread problem around the state, said Todd Mervosh, a weed scientist for the Connecticut Agricultural Experiment Station in New Haven.

This year, the state Department of Environmental Protection is offering cities and towns grants to get rid of the annoying, non-native plants that have cropped up and taken root here.

The invasive species "are displacing the native vegetation, the plants that have always been here as part of our ecological system," Mervosh said. "There are a lot of animal species that co-exist with these native species, that depend on them."

Oriental bittersweet, an Asian vine with yellow fruit that entwines itself around other plants, is considered by many the "worst invasive plant in the state," he said.

Richard Tiani, executive director of Groundwork Bridgeport, said a group of Harding High School students working with his agency has also found a lot of Japanese barberry -- a vine that wraps around trees -- during their cleanup efforts in Bridgeport's parks and in surrounding towns.

"Over time it becomes so strong and heavy that it kills trees and pulls them down," Tiani said of the invasive plant.

The Harding "Green Team," working with Groundwork Bridgeport as paid summer interns, is partnering this year with the city of Bridgeport in a project to remove a multiflora rose and garlic mustard infestation in Veterans Memorial Park.

The city is seeking a $49,236 grant from the DEP to clean up a section of the 107-acre park. Another section of the park and wetlands, near the proposed Discovery Magnet School, will be cleaned up as part of the $31 million inter-district school project.

Getting rid of invasive plants is essential to preserving the city's parklands and wildlife, officials say.

Continued at Link

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Congress Approves Funds For Invasive Species Prevention

By KBJR News 1

Congress has granted nearly 1–million dollars to help slow the spread of invasive species into the Great Lakes Chain.

President Obama signed the bill into law this week, which will help researchers test various ways to treat ballast water before it's discharged into the lakes.

For more than 20 years invasive species have hitch hiked their way into the Great Lakes causing a wide range of economic and environmental problems.

From clogging water pipes to interfering with the lake's natural ecology, many environmental agencies have worked hard to slow the spread of these exotic pests.

The new funding will go towards the Great Ships Initiative which aims to do just that.

"The goal of the great ships initiative is to try to find ballast water treatment methods so that the water can be cleaned or sterilized before it is transported between one place to another."

Continued at Link

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Henry Hudson's majestic view altered by invasives

By Michael Risinit, LoHud.com

PHILIPSTOWN, NY - The slice of the Hudson River visible from a bluff on Little Stony Point in Philipstown probably appears much as it did to Henry Hudson and his crew aboard the Half Moon 400 years ago...

...The river was full of fish to levels that are just about unimaginable today," said Fran Dunwell, director of the state's Hudson River Estuary Program. "It was a very rich natural environment."

Dunwell recently wrote "The Hudson America's River." Waterfowl and other birds, she said, darkened the sky where they flew. Oak trees grew 70 feet tall without knots, perfect for shipbuilding. The banks, according to Juet, contained a "great store of goodly Oakes and Wal-nut trees and Chest-nut trees. Ewe trees and trees of sweet wood in great abundance, and great store of slate for houses, and other good stones."

Marshes lined most of the river, not just at Piermont, Iona Island and a few other places as they do today. Chairmaker's rush, horned pondweeds and umbrella sedge are gone, replaced by cattails and phragmites (aka common reed).

But seeds from the original plants are found in sediment cores pulled from the existing marshes, said Dorothy Peteet, a NASA senior researcher and an adjunct scientist with the Lamont-Doherty Earth Observatory of Columbia University in Palisades.

"We can see back in time," Peteet said. "I think it was vastly different. You had this diversity which would have gone up the food chain."

Read the full article at Link

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American chestnut ready to reign again

BY MORGAN SIMMONS SCRIPPS HOWARD NEWS SERVICE

After decades of selective breeding and countless hours of fieldwork, researchers believe they have developed an American chestnut tree that is ready to reclaim the Appalachian forests.

The first batch of these blight-resistant chestnut seedlings arrived recently at a greenhouse on the agricultural campus of the University of Tennessee, where workers trimmed the roots and identified each tree with a numbered tag.

The trees -- 1,200 in all -- were planted in three Southern national forests as a groundbreaking experiment to determine if decades of crossbreeding have produced a chestnut tree that is blight-resistant yet retains the superior timber qualities of the American chestnut tree.

"This is the very first planting of the final generation and the culmination of a lot of hard work," said Scott Schlarbaum, forest geneticist with the UT Department of Forestry, Wildlife, and Fisheries.

The trees were grown in a Georgia nursery in cooperation with the American Chestnut Foundation, an organization dedicated to restoring the American chestnut.

The American chestnut accounted for 25 percent of all the trees in the Appalachian mountains until a blight virtually eliminated them between 1904 and 1950.

Today, the airborne bark fungus still survives and kills virtually all American chestnuts by the time they've reached 20 feet in height.

For more than 30 years, the American Chestnut Foundation has been crossing Chinese chestnuts, which are naturally resistant to the blight, with American chestnuts to produce a super hybrid that can be reintroduced in the wild. Only American chestnuts that demonstrate natural blight resistance qualify for the breeding program, and scientists have been careful to breed trees from local environments.

Of the 1,200-year-old chestnut seedlings brought to the UT greenhouse, 500 were the blight-resistant hybrids. The remaining trees were either pure American chestnut, pure Chinese chestnut or hybrid trees from an intermediate back-cross generation.

Earlier this year, the 4-foot-tall seedlings were planted on national forest lands throughout the Southern Appalachian region. In the coming years, researchers will regularly monitor the trees for blight resistance, mortality and growth characteristics.

Stacy Clark, research forester for the Forest Service's Southern Research Station, said American chestnuts were renowned for their straight-grained wood and rapid growth rate.

"We want these trees to be blight-resistant, but also competitive," Clark said. "They're going out into the forest where they'll have to grow quickly to get above the deer browse, and compete with species like yellow poplar and red maple."

The goal of the American Chestnut Foundation was to breed a blight-resistant tree that is genetically 94 percent American chestnut. The foundation chose the Southern Appalachians as the proving ground for the final generation of seedlings because the region was once a stronghold for the American chestnut.

Clark, who leads the study for the U.S. Forest Service, said she is especially excited about two milestones in the trees' development: the fourth year of growth, which will reveal if the trees have held their own against competing species; and years 10 through 20, when American chestnuts normally succumb to the blight.

"If the trees are blight-resistant, we'll definitely know by that time," Clark said.

The chestnut blight robbed the Eastern forest of its undisputed champion. American chestnuts routinely grew 4 feet across and 120 feet high, and lived for centuries. The nuts were an important food source for a wide range of wildlife, and the rot-resistant wood was a prized building material.

Clark said that if the final generation of crossbred chestnuts survives in the national forests, this will raise great hopes about other species, like hemlocks and ash trees, that are being destroyed by nonnative pests.

"If we can restore this tree to its natural habitat, it will be the greatest success story in natural resource conservation," Clark said. Link

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Local anglers weigh in on aquatic weed control in Tennessee

Daimon Duggar, MarionCountyNews.net

Though many in Marion County are disappointed with last year’s decision by the Tennessee Valley Authority’s to discontinue aquatic weed control in the Nickajack reservoir, there is another segment of the community that couldn’t be happier: Fishermen.

According to a number of local fishermen and those in the fishing industry, TVA’s aquatic weed control program presents a danger to one of the area’s most popular sports and pastimes.

Last Saturday, March 7, dozens of fishermen and fishing enthusiasts gathered at Sullivan’s Landing on Highway 41 for the annual Grassmasters fishing tournament. The name of the competition says it all and reflects the opinion of many regarding the indispensable nature of aquatic growth as it relates to fishing.

“(Aquatic weed control) is really hard on the fish,” said fisherman Darren “Dobie” Kilgore. “It kills grass on humps. If they only did it in channels it wouldn’t be a big deal.”

A common complaint among fishermen is that the weed control program is non-selective. In addition to killing invasive exotic species, many feel, the long standing program also killed native aquatic grasses that allow the reservoirs variety of fish, including large mouth bass, to thrive.

“Grass helps the whole ecosystem. We used to have a good bank but not any more. It has been bad for 10 years,” said Marion County resident and fisherman Roger Kendrick...

...Avid fisherman and stakeholder Jim Henry worries that TVA’s discontinuance of their weed control problem will be more of a detriment to fishing than would unfettered growth however.

“It’s a mess and its going to be a lot worse,” said Henry. “There’s a lot of spots that you won’t be able to get to now. Mullin’s cove, for example. It was already hard to navigate it. This year I think its going to be impossible. This year will absolutely be worse.”

Only time will tell the wisdom of TVA’s new policy. But for fishermen and stakeholders alike, aquatic weed control in the Nickajack Reservoir will continue to be a growing problem.

Read the full article at Link

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South East Exotic Pest Plant Council 11th Annual Symposium

Creating Sustainable Landscapes for the Future

May 13-15, 2009
Quality Inn and Suites
Georgetown, SC

Agenda and Registration available online. Go to http://www.se-eppc.org/2009/ for all conference information.

Deadline to Register and Reserve hotel room: April 13, 2009.

Plenary speaker topics to include:

- Raising funds for your invasive species project
- Innovative approaches to effective invasive programs through partnerships
- Invasive plants from the perspective of the nursery/landscape industry

Other topics addressed through platform presentations and field trips include:
- Current research in invasive plant control and land restoration
- Building communication and consensus among key players
- Building cooperative weed and invasive species management areas
- Early Detection and Rapid Response efforts
- Control of tidal marsh invasives (ie. Chinese tallow, phragmites)
- And more!

Wonderful fieldtrips, workshops, and social events planned!

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'Red Baron' Nabbed In Baltimore

WBAL Radio as reported by Scott Wykoff

A Customs and Border Protection plant seed interception was confirmed on Monday (3/9/09) as the Baltimore area’s first reported discovery of cogon grass weed seed, aka Red Baron grass seed, and just as the legendary Red Baron was a menace to allied fighters during World War I, Red Baron grass has become a despised invasive weed throughout parts of the United States.

During a routine inspection on Friday at the Baltimore seaport, CBP agriculture specialists discovered weed seeds littered among non-compliant wood packing in a container of travertine tile that arrived from Turkey. On Monday, the U.S. Department of Agriculture pest identifier database determined the seeds to be Imperata cylindrica, or cogon grass, a Federal Noxious Weed, and confirmed that this is Baltimore’s first Red Baron seed report.

According to the USDA, cogon grass is an invasive weed from Asia that spreads quickly and disrupts ecosystems, reduces wildlife habitat and can decrease tree seedling growth and establishment. Cogon grass is considered one of the 10 worst invasive plant species in the world and is listed as a federal noxious weed. Cogon grass is believed to have invaded more than one million acres in Florida, Alabama, Mississippi, Louisiana, Georgia, and Texas.

“This interception is a significant find for our agriculture specialists, and it further illustrates our continued commitment to protect America’s agriculture industry and our economy from invasive insect pests and plants,” said James Swanson, CBP Port Director for the Port of Baltimore. “Invasive species pose dire consequences on our nation’s economy, potentially more so than even a single terrorist act could have.”

CBP issued an Emergency Action Notification to the importer to immediately re-export the container. Link

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Call for volunteers in Virginia for first Invasive Plant Removal Day on May 2

(Media-Newswire.com) - Volunteers are needed across the Commonwealth to help remove invasive plants that are wreaking havoc on Virginia’s landscape. The Virginia Master Naturalists and the Virginia Native Plant Society are seeking help Saturday, May 2nd at locations throughout Virginia in the first ever Invasive Plant Removal Day.

“From kudzu to English Ivy to tree of heaven, there are dozens of invasive species that are causing both ecological and economical harm,” said Michelle Prysby, Virginia Master Naturalist coordinator. “These invasive plants out-compete native species for the same resources, eventually harming trees, wildlife and water quality.”

The Virginia Native Plant Society and the Virginia Master Naturalists are sponsoring this event. Activities are being coordinated locally, and interested people can learn more about how and where they can help by going to www.virginiamasternaturalist.org/invasives/index.html .

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Feds release invaders to save native plants

BY JIM WAYMER • FLORIDA TODAY

They're using new invaders to devour old ones. And while these weevils gobble, they won't wolf down the plants that belong in Florida.

To give native plants a fighting chance, the U.S. Army Corps of Engineers this year announced a $16.6 million plan to send at least 14 invasive bug species on seek-and-destroy missions.

Biologists would set the insects free -- some just a few miles from Brevard County -- along 18,000 square miles from south of Orlando to the Florida Reef Tract in an effort to preserve the character of the Everglades.

They say the bugs will spread to the Space Coast and beyond. And they assure their introduction won't trigger further ecological harm.

"You don't let these things go and . . . forget about them," said Donald Strong, an ecologist and "biocontrol" expert at the University of California, Berkeley. "In the large majority of cases, the insects are chosen and put through rigorous tests based on the fact that they don't attack other things."

The invasive insects in coming years would control Florida's massive problem with melaleuca, Brazilian pepper, Old World climbing fern and Australian pine...

...The insects won't completely wipe out the targeted trees, just keep them in check. That could take two decades or longer.

The melaleuca weevil, for example, can eat away about 98 percent of the tree's seed production, said Ted Center, research leader in Davie.

"What we're basically doing is biologically sterilizing the tree. We're not eliminating the plant. We're neutering it," Center said...

...In addition to melaleuca, the Corps proposes to fight three other notorious invasive plants with insects.

Brazilian pepper: Unlike melaleuca, no one's quite sure how it got here. Most credit a doctor in Port Charlotte. Fond of how the tree looked, he raised hundreds of them in the 1920s, passing them to friends. The Corps hopes a sawfly, a thrips and a weevil can undo the doctor's good work.

Old World climbing fern: Two moths, a gall mite and a stem borer will tackle this much more recent invasion. A Delray Beach nursery introduced the fern -- a native of Africa, Asia and Australia -- in the late 1950s.

Australian pine: A seed wasp planned for release in the next few years holds the most promise to battle back the Australian pine, introduced to Florida in the late 1800s.

Although some past "biocontrols" grew into problems themselves, government biologists assure their extreme caution and long, careful study make these insects the best way to restore a more natural state.

Read the full article at Link

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U.S. Birds Struggling to Survive

WASHINGTON, DC, March 19, 2009 (ENS) - Nearly one-third of the more than 800 bird species in the United States are endangered, threatened or in decline due to climate change, habitat loss, and invasive species, finds the first comprehensive report ever produced on U.S. bird populations.

At a news conference in Washington today, Secretary of the Interior Ken Salazar released the report, which was developed by a partnership among the U.S. Fish and Wildlife Service, the U.S. Geological Survey, state government wildlife agencies and nongovernmental organizations...

"Just as they were when Rachel Carson published "Silent Spring" nearly 50 years ago, birds today are a bellwether of the health of land, water and ecosystems," Salazar said. "From shorebirds in New England to warblers in Michigan to songbirds in Hawaii, we are seeing disturbing downward population trends that should set off environmental alarm bells. We must work together now to ensure we never hear the deafening silence in our forests, fields and backyards that Rachel Carson warned us about."

...Invasive plants and animals are major threats. Domestic and feral cats kill hundreds of millions of birds each year. Island nesting birds, particularly seabirds, are vulnerable since they nest on the ground or in burrows and are preyed upon by rats, foxes, cats, dogs, and mongooses.

Read the full article at Link

Monday, February 9, 2009

Week of February 9, 2009

Updated 2/12

Exotic fish pose threat to native species in Everglades

By Curtis Morgan, Miami Herald

The small pond six miles deep in Everglades National Park suddenly began bubbling like a pot aboil -- a telltale sign of air-slurping walking catfish.

Dave Hallac, the park's chief biologist, dipped a net into the muddy commotion and hauled up a mess of wriggling slime so hefty it surprised even him. He counted out 56 fish from a single scoop.

Walking catfish, along with other species originally imported for somebody's tank or table, outnumbered natives in this shallow, shady bayhead by an unhealthy margin. Unlike giant python, the Glades' most notorious invader, these dinky denizens don't draw attention to their presence by, say, swallowing an alligator and exploding. But for park scientists, their spread is no small concern.

''This is a problem that is 10 times worse than the python, but it's all under water, so nobody knows about it,'' Hallac said. Link

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Insect killing Pennsylvania's hemlocks

By Dan DiPaola, Daily American

RICHLAND (PA) TOWNSHIP - The hemlock population around the Quemahoning Reservoir is under attack by an invasive insect that could wipe out the tree within four years, according to Cambria Somerset Authority officials.

A harvester working in a large stand of hemlock along Que Dam Road found the hemlock woolly adelgid, an aphid-like insect from Asia, in downed trees in November, said manager Thomas Kakabar.

“We've been keeping an eye out for it and now we have it,” he said. “It's going to claim most of the hemlock in Pennsylvania.”

The small soft-bodied insect feeds on young branches, which results in premature needle drop and branch dieback, according to the state Department of Conservation and Natural Resources.

The insect was first reported in the state in the late 1960s and has been reported in 44 counties as of 2005, according to the site. “East to west, it's been moving this way for a while,” said authority Chairman James Greco. Link

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Invest in restoration, not Asian oysters

The Virginian-Pilot

EVERYONE AGREES on the need to restore the Chesapeake Bay's oyster population, both for the ecological effects and commercial possibilities. The disagreement - raging for years now - is over what restoration should look like and what its goal should be.

Maryland, Virginia and federal officials are now considering whether to introduce a foreign oyster species into the Bay in hopes of saving an industry that has been dying since the parasitic diseases Dermo and MSX arrived in the watershed.

Many of the remaining seafood processors want an oyster that will allow them to stay in business and provide jobs. The Asian oyster has shown significant potential. Watermen are more divided; some are already growing native oysters they fear would be crowded out by a foreign species.

Aside from the commercial considerations, there are ecological ones. The decline of the Bay's oyster population has coincided with the decline in its water quality. Restoring any oyster - along with the menhaden and other struggling species - could do much to make the Bay healthier.

The Bay's primary environmental watchdogs, after years of relative neutrality on the subject, are now lobbying to keep out the Asian oyster, preferring instead a greater effort to restore the native species. There have been encouraging signs, particularly in the Lynnhaven watershed, that the native species have potential to rebound if enough effort is put into restoration. Link

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Economics of Invasive Species

Oregon Invasive Species Council. Prepared for the Oregon Invasive Species Council by Oregon State University. Link

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Beach Vitex Task Force symposium

The Carolinas Beach Vitex Task Force will hold its annual symposium on Friday, March 13 at 10:00 a.m. at the North Carolina Aquarium at Fort Fisher, 900 Loggerhead Rd., Kure Beach, NC (near Wilmington). The symposium is open to the public. Link

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Tennessee Governor Proclaims Invasive Weed Awareness Week

Governor Phil Bredesen has issued a state proclamation declaring Feb 22-28, 2009, as Invasive Weed Awareness Week (IWAW) in Tennessee in conjunction with the 10th Annual National Weeds Awareness Week in Washington, D.C. The Tennessee Exotic Pest Plant Council (TN-EPPC), an all-volunteer, nonprofit organization, is working closely with various local, state and federal organizations and agencies to promote public education on the harmful impacts of nonnative, invasive plant species through several "pest plant removal events" around the state. Link

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Waccabuc Cove, NY, Brazilian water-weed removal plan presented

By Matt Dalen, LewisboroLedger.com

Four months after discovering a highly invasive aquatic plant in Lake Waccabuc, the Three Lakes Council is planning drastic measures to remove it. A plan presented at the Tuesday, Jan. 27, meeting of the Planning Board would essentially remove the top layer of the lake bottom over an area of nearly two acres, in hopes of capturing every fragment of Egeria densa, also known as Brazilian waterweed or Brazilian elodea. The plan would cover the entirety of Waccabuc Cove, a small cove on the north shore of the lake. So far, the plant has only been found in that cove.

“I want to start this as soon as possible,” said Janet Andersen, who represented the council before the board. “If this thing is out somewhere else, the game’s over.”

The proposal is likely to go to a public hearing in March before the Planning Board rules on the permit.

Because only male specimens of Brazilian elodea have been brought to the United States, the weed cannot reproduce with seeds. However, a fragment of the weed can grow into a full plant, and it grows at an extremely fast pace, which makes it one of the worst aquatic invasive species.

“This is something which, certainly, it appears we have one attempt to hopefully eradicate,” said town wetlands consultant Bruce Barber. “I’m not sure you have a real good second attempt at it if it starts to spread out in the lake area. We want to make sure we get this right the first time.”

The proposal would close off the cove and use “suction harvesting” to suck the lake bottom into containers, which would then be disposed of. It’s the hope of the council that this type of suction would be able to capture every fragment of the plant in the cove. This may be possible because the weed appears to be contained to just the cove, and wind and water currents both run into the cove, potentially isolating it.

Ms. Andersen said that an alternative — aquatic herbicide — had been considered, but that had run into several problems, the largest of which was residents of the lake community who use the lake for drinking water. At least 14 homes get their water supplies from the lake, according to Ms. Andersen, several of whom live on that cove. Aquatic herbicide would cut off the use of the water to those homes for at least two months, not only for drinking but also for showering and other uses.

The suction harvesting plan, which requires state approval in addition to town approval because the state owns the lake bottom, would cost at a minimum about $15,000 per acre just for the suction itself, Ms. Andersen said. Additional costs, which have not been measured, would be incurred for obtaining a 400-foot net to block off the cove during the work and capture any fragments of the weed that drifted away, educating the public on what the work entails, and disposing of the material harvested from the bottom of the lake. The money would likely be obtained by the council through a fund-raiser, Ms. Andersen said.

Assuming all of the permits are received and the council can find an experienced manager to oversee the harvesting, the hope is to complete the work before the Fourth of July and before extensive boat traffic begins on the lake.

Board members asked about the potential impact on the cove’s ecosystem. Ms. Andersen said that previous experience had shown that, after this kind of project, water plants repopulated the area quickly. She also said that, while a small number of fish might be caught in the suction harvest, they would likely flee from the commotion, and that there were no endangered or threatened fish in the lake. Link

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New aquatic invaders info available at the Central NY Boat Show

By David Figura, The Post-Standard

Boaters interested in how they can prevent the spread of fish diseases and aquatic invaders such as zebra mussels and water chestnuts that disrupt the food chain, clog waterways and cost millions of dollars annually in control measures across the country can check out a new exhibit this week at the CNY Boat Show at the NYS Fairgrounds.

The show begins at 1 p.m. Wednesday and continues through Sunday.

The Finger Lakes Partnership for Regional Invasive Species Management will be providing fact sheets and other resources for dealing with invasive species on the Great Lakes, inland waters (streams, ponds and lakes) at a booth in the Toyota Building.

The boat show this year will feature more than 500 power and sail boats, yachts, water recreation equipment and marine accessories on display. The show runs from 1 to 9 p.m. Wednesday, Thursday and Friday; 10 a.m. to 9 p.m. Saturday and 10 a.m. to 5 p.m. Sunday. Cost is $9 per person; children under 12 free. Free parking. Link

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To battle phragmites, Assateague calls in the torches

By Charlene Polk, DelmarvaNow.com

ASSATEAGUE ISLAND, DELAWARE -- The National Park Service intends to use controlled burns on Assateague Island to help control the spread of the invasive plant phragmites next month.

The park service plans to burn about 200 acres during one week sometime between March 10 and April 1 to remove the above-ground remains of Phragmites australis (common reed) that have been sprayed with herbicide. It will be the first time the park's staff has chosen to fight the rapacious cattail-like plant with fire.

"The goal is to reduce the biomass, the phragmites deadened down by aerial spraying," said Ted Morlock, chief ranger at Assateague Island National Seashore. "This will help re-vegetate areas." Link

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Invasive insects in our woods

7 p.m. Tuesday, Feb. 24, at the Thayer Memorial Library, Lancaster, MA. The news is full of stories about insects with exotic-sounding names we never heard about years ago — Emerald ash borer, Hemlock woolly adelgid, and right here in Worcester, the Asian long-horned beetle. Who invited these pests in and how are they able to cause so much damage once they arrive? Program presenter Laura Marx is the forest ecologist for the Nature Conservancy’s Massachusetts Chapter and an adjunct professor of environmental biology at Westfield State College. Laura will tell stories of invasive insects and describe how all of us can have a part in controlling these insects. Everyone will leave with the information needed to be a set of “eyes on the ground” and a better understanding of how important it is to work to prevent these outbreaks in the first place. Age 10 through adult. Link

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Monday, January 19, 2009

Week of January 19, 2009

Updated 1/23

Help on way for New England cottontail

By DAVID BROOKS Staff Writer, Nashua Telegraph

The cutest endangered species in New Hampshire is getting some federal help – which is good, because the New England cottontail needs all the help it can get."

This is one of our top priorities," John Kanter, the state's endangered-wildlife program coordinator, said of the elusive bunny.

As recently as the 1960s, the New England cottontail was found from the Hudson River through southern Maine and also thrived in New Hampshire. Today, officials know of only 10 places where the species is found at all, mostly in a few flooded areas along the Merrimack River south of Concord and in the Seacoast.

The New England cottontail, like many species, has suffered from changes in habitat.

It likes brushy land in transition between field and forest, with lots of brambles and low bushes where it can hide and find food. That sort of thicket was common when New Hampshire was filled with farms. Today, however, the state mostly consists of mature forests, which don't have much undergrowth, or developed land, which has even less.

Adding to its problems are invasive plants, such as multiflora rose, honeysuckle bush and autumn olive, that drive out the rabbits' preferred cover and food, plus the increase in whitetail deer, which compete with the cottontail for food.

Finally, there's the Eastern cottontail, which is a distinct species of rabbit despite the fact that it looks so similar that most people can't tell them apart; only by sampling DNA from fecal pellets can scientists be sure.

The Eastern cottontail was introduced into the Northeast in the first half of the 20th century, largely by hunting clubs, and is doing fine, largely because it seems better at spotting predators, according to the U.S. Fish & Wildlife Service. Link

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Invasion of the Blobs

By Lily Whiteman, National Science Foundation

Although the moon jellyfish is currently widely distributed throughout the world, scientists believe that this jellyfish was probably transported and introduced to many of its current habitats by ships.

How do ships introduce non-native species of jellyfish to new habitats? For one thing, young jellyfish, known as polyps, travel with ships after clinging to their hulls. In addition, ships take on ballast water needed for stability in originating harbors, and then dump this water along with accompanying organisms, including jellyfish, into destination harbors.

Ships currently transport millions of gallons of ballast water around the world annually. Largely because of this phenomenon, 15 to 25 percent of all marine species that are currently found in global sea ports are non native.

Once non-native jellyfish are released from ships into new habitats where conditions suit them, they may colonize these habitats. And if these invasive jellyfish face few or no predators to control their numbers, their populations may explode into large swarms. Large jellyfish swarms may consume large numbers of commercial fish and thereby damage the fishing industry.

Invasions of non-native species of jellyfish have wreaked havoc on many ecosystems, including the Gulf of Mexico, the Sea of Japan, the Black Sea, the Caspian Sea and the Mediterranean. The costs of resulting ecological problems to the tourism and fishing industries have been staggering.

How do scientists distinguish native from invasive species of jellyfish? By using DNA analyses. Native species that have had a long history in a particular ecosystem have had time to diversify, while specimens taken from recently introduced species show more similarity with each other.

In addition, scientists are currently poring over records of worldwide marine life that were fastidiously maintained by some early explorers. Such analyses will help scientists map the natural distributions of jellyfish species before large-scale shipping introduced non-native species to new habitats. Link

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Drawdowns at Candlewood Lake could use study

Annual drawdowns at Candlewood Lake, Connecticut, to kill invasive watermilfoil plants could use more study

By Robert Miller, Staff Writer, NewsTimes.com

By now, there's a wide ring of ice and snow encircling Candlewood Lake. Unless there's a serious thaw, that wintry crust may stay in place until February.

"It's actually very nice,'' said Michael Calandrino, a member of the Danbury Common Council who lives on the lake and has walked and cross-country skied around its perimeter when the lake water is low. "We've had some good times out there.''

In February the season of the lake's deep drawdown will end, and Candlewood will gradually start rising. By spring it should be back to about 427 feet above sea level -- 8 to 10 feet higher than this winter's low.

FirstLight Power Resources, which owns the lake, manipulates its level. For the past 20 years, FirstLight and its predecessors -- Connecticut Light & Power Co., then Northeast Generation Services -- dropped the lake down deep every couple of years, the better to kill off Eurasian watermilfoil, the invasive plant that befouls the lake in summer.

In 2008 the watermilfoil was especially thick and noxious. Therefore, the news of a deep drawdown was welcome. Freezing winter weather can kill the exposed plants, leaving the lake a little less tangled for a year or two.

But that doesn't always happen. Sometimes, even after the lake has been low, the watermilfoil comes back strong.

That has led Larry Marsicano, the executive director of the Candlewood Lake Authority, to ask: When the drawdown doesn't work, what are we doing wrong?

"We've had years when we've had limited success, even when we've had back-to-back-to-back drawdowns,'' he said.

Working with the New Fairfield-based Candlewood Watershed Initiative, Marsicano has looked at the rise and fall of the lake over the past 20 years.

He's found that in recent years the owners have not dropped the lake as low as they had in the past. For example, in 1985 the lake fell below 419 feet for more than half of the two-month drawdown. In 1995 it fell below 418 feet for 21 days.

In comparison, in the last deep drawdown, January through March 2007, the lake was only below 419 feet for two days.

But Marsicano said what he and other researchers need to do is to match that data with weather records for the same year. A blanket of snow around the lake may act as a blanket, insulating rather than killing the watermilfoil.

"You need the cold,'' he said. "But you also need a dissicating dryness to kill them.''

Greg Bugbee, an assistant scientist at the Connecticut Agricultural Experiment Station in New Haven, is now studying watermilfoil on Candlewood Lake. He admits, somewhat ruefully, there's been little research on the weather's effect on the plant -- what conditions kill it, what conditions help it survive.

Given that watermilfoil is a problem in lakes throughout the continental U.S. and parts of Canada, he said, this lack of research is "kind of shocking.''

Bugbee said it makes sense that a layer of thick, fluffy snow would protect the watermilfoil. It's not clear that a shelf of ice would do the same.

Marsicano said if the region is undergoing climate change, that might also affect how the drawdown works. "There are so many variables to consider."

He said it may be that the drawdowns should start earlier -- in early December -- to expose the watermilfoil to winter cold without snow protection. Dropping the lake a foot or two lower may also help. Link

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New York farm fights starling flock

By JOE MINISSALE, Indenews.com

HILLSDALE--Bill Carney, 56, bends down in his backyard Friday and picks up a dead black bird with his bare hands and throws it away in the garbage. There are three European starlings on the ground around his home on Anthony Street.

"I noticed the one dead and didn't think anything of it," he said. "I came back later and there were two more. I'm upset about this whole scenario."

Residents in the area are discovering dead birds on their property, and while officials say there is no threat of disease from the birds, Mr. Carney wants some answers.

Last week officials with the United States Department of Agriculture Animal and Plant Health Inspection Services program visited a farm in Copake at the request of the farmer and applied a chemical called DRC-1339, a federally restricted pesticide. They were using it for what they call a "controlled baiting" of the non-native invasive species, which is not protected by federal law. The chemical kills the birds.

"We are focusing on the starlings for the feed consumption disease threats... with dairy farms," said Kenneth Preusser, a Craryville native who works for the USDA office on Route 9 in Castleton.

One example he cited was the possibility that the birds would spread salmonella.

The state Department of Conservation says that because DRC-1339, which has as its active ingredient 3-Chloro-4-methyl-benzenamine hydrochloride, is classified as a "Restricted Use Pesticide" it is "for use only by USDA personnel trained in bird control or persons under their direct supervision."

"The main issue is when they are actually feeding on the farm, they are going for high protein. They also impact milk production, and take high protein rations from the cattle, an economic loss to the farmer as well," said Mr. Preusser.

Mr. Preusser would not divulge the name of the farmer, but said the department supplied the farm with 500 pounds of "pre-bait," and then applied the pesticide via bait. He said officials observed as roughly a thousand starlings ate the bait. He also said the officials made sure no cardinals, blue jays or other species were in the area. If any other birds flew on the farm during the controlled baiting the officials scared them away.

Mr. Preusser said that the pesticide is metabolized and excreted by the birds, which he said eliminates the threat of secondary poisoning to pets or other wildlife. The birds succumb to the pesticide within 24 hours after the application of DRC-1339.

"There are no secondary hazards," he said. "It is mainly targeted to the starlings."

Farmers who would like the pesticide administered may apply during January and February, when the starlings tend to congregate on dairy farms and cause damage by consuming and contaminating feed and potentially transmitting diseases to livestock. The fee is $700-$800, which covers the pre-bait, bait, salary and vehicle use.

Anyone with questions may dial the USDA at (518) 477-4837 and (518) 495-4735 on the weekends. Link

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Move to make firewood transport ban permanent

By BRIAN NEARING, Staff writer, TimesUnion.com

ALBANY, NY — To fight the spread of invasive pests, the state is moving to permanently bar the movement of untreated firewood from one part of the state to another.

Temporary emergency rules that ban moving firewood more than 50 miles from its source have been in place since June 2008, State officials hope the ban will prevent the spread of such invasive species as the emerald ash borer, Asian longhorned beetle and sirex wood wasp through infested wood.

The regulations do not affect homeowners cutting wood on their own property for use on that same property. They also do not affect firewood being transported through New York for sale and use in another state.

"Invasive pests and diseases damage both the environment and the economy," said Department of Environmental Conservation Commissioner Pete Grannis. "By taking proactive measures, we can reduce the risks of the inadvertent introduction of invasive and destructive pests and further protect our forests, woodlands and urban trees."

Under the regulation, only firewood cured by heating to a core temperature of 160 degrees Fahrenheit for 75 minutes can be moved without restriction.

A public comment period on the proposed permanent rules ends Feb. 9. Comment may be sent via e-mail to firewood@gw.dec.state.ny.us, or by writing to Bruce Williamson, NYS Dept. of Environmental Conservation, 625 Broadway, 5th Floor, Albany, NY 12233. Link

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Comments sought on draft invasive species plan

From GeorgiaFrontPage.blogspot.com

A draft plan that targets more than 180 invasive species threatening Georgia’s rich variety of native wildlife is available for public comment.

The Georgia Invasive Species Strategy describes the complex scope of problems posed by non-native plants, animals and disease-causing organisms and proposes ways to lessen the impacts in a state ranked sixth in the nation in biological diversity.

Jon Ambrose, assistant chief of the Georgia Wildlife Resources Division’s Nongame Conservation Section, said the strategy provides a framework that will help communicate and coordinate invasive species management priorities.

Copies are available at www.georgiawildlife.com (click the “Conservation” tab to reach the link) or from the Georgia Wildlife Resources Division office in Social Circle (770-761-3035). A public comment meeting is set for 5:30-7:30 p.m. Feb. 12 at the Wildlife Resources Division’s Conservation Center in Social Circle. For directions, go to http://www.georgiawildlife.com/.

The deadline to submit comments is Feb. 16. Send written comments to jon.ambrose@gadnr.org or Jon Ambrose, Georgia Wildlife Resources Division, 2070 U.S. Highway 278 S.E., Social Circle, Ga.30025.

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North Carolina officially bans vitex, "kudzu of the coast"

By Gareth McGrath, Staff Writer, StarNewsOnline.com

A plant that was first promoted by North Carolina has now been outlawed by state officials.

Rules to ban the sale, transport and possession of beach vitex by nurseries, garden shops and private property owners passed their final regulatory hurdle on Thursday.

The plant will be officially added to the state’s “noxious weed” list on Feb. 1.

Fast-growing, salt-tolerant, disliked by animals and sporting a beautiful purple flower during the summer, vitex was marketed as a coastal landscaping plant by N.C. State University in the 1980s.

But vitex started worrying researchers earlier this decade when it began overtaking dunes, crowding out the native sea oats and sea grasses.

Beach vitex has been found all along the North Carolina and South Carolina coasts, including on most barrier islands in Southeastern North Carolina.

It also has been reported in Virginia, Georgia and along the Gulf Coast.

For more information about the invasive plant or to report an infestation, go to http://www.beachvitex.org/.

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Monday, March 31, 2008

Week of March 30, 2008

Updated April 2

The Nature Conservancy on Long Island Joins Nurseries and Landscapers in Urging Gardeners to Avoid Purchasing and Planting Invasive Plants

Cold Spring Harbor, NY — April 1, 2008 — As part of a comprehensive effort to reduce the number of invasive plant species introduced to Long Island’s natural areas, The Nature Conservancy, North Shore Land Alliance, Long Island Farm Bureau, Long Island Nursery and Landscape Association, and New York American Society of Landscape Architects are encouraging gardeners to grow native plant species this spring.

The groups have partnered to donate copies of the book Native Alternatives to Invasive Plants, published by the Brooklyn Botanic Garden, to all public libraries in Nassau and Suffolk counties, government officials (county, town, village, State, Federal) representing Nassau and Suffolk, growers, nurseries, select landscapers, landscape architects, and Long Island’s garden clubs. The book details a variety of attractive and hardy native alternatives to many of the non-native plants that are degrading our natural landscapes.

“Invasive plants are one of the greatest threats to the natural environment of Long Island,” said Kathy Schwager, invasive species specialist for The Nature Conservancy on Long Island. “They are often introduced and proliferated by people who plant pretty – but what turns out to sometimes be invasive – plants.” Awareness of invasive plant species is part of a growing trend. In 2007, both Suffolk and Nassau Counties passed legislation stopping the commercial sale, introduction, and propagation of 63 plant species that are deemed non-native and invasive on Long Island.

“This book is a useful resource when it is time to plant your garden this spring. Take it with you when you go to your local nursery and your nursery professionals can help you find the best native alternatives for your garden,” said Joseph M. Gergela, executive director of the Long Island Farm Bureau. Full Article

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In a real pinch: 'Hairy' crabs could be a detriment to environment

By NICK GOSLING ngosling@fosters.com

PORTSMOUTH, New Hampshire — If you see a medium-sized crab with white-tipped, hairy claws, beware. Called the Chinese mitten crabs, these Asian-based crustaceans are an invasive species and pose a threat to fisheries and local ecosystems in both fresh and saltwater habitats, according to a press release from New Hampshire Estuaries Project.

NHEP has launched a New England-wide campaign, enlisting commercial fishermen to detect the mitten crabs before they pose a problem and become established in the area.


NHEP Project Coordinator David Kellam said the crab is particularly nasty because it lives in both freshwater and saltwater." In the freshwater system, the juveniles burrow into the banks of streams," Kellam said. "These crabs can come in and increase erosion, which would then suffocate a lot of the creatures that live in the bottom of these streams."

Adult crabs migrate to the sea, where they can clog fish passage structures, foul fishing gear and crowd-out some commercially significant species. In addition, the crabs eat the food of other species. "They just compete for limited food sources, and they're very good at it so they end up pushing other species out," Kellam said.

While the crabs have just recently been detected on the east coast, they have posed a significant problem on the west coast and in Europe for years. A total of 13 mitten crabs have been found on the East Coast in the last three years, with the most recent observation in January 2008 in the Hudson River in Newburgh, NY.

The focus of the campaign is early detection, said Kellam. "If they start expanding they should just go up the coast," he said, adding so far they have been found only in the Hudson River and Chesapeake Bay. "But they could expand — it may be too cold up here, but we don't know," Kellam said.

If identified, ecologists can go into an area and net the crabs, removing them. "Early detection is key," said Kellam. "If (someone) finds one, especially if they have hairy claws — it's the only thing with hairy claws — they should hold on to it, not release it, and they should call the New Hampshire Sea Grant." The number for the NH Sea Grant is 749-1565.

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North Carolina hopes to wipe out pretty but invasive plant

By Gareth McGrath, Starnewsonline.com

Members of a small task force are quietly confident they might be able to turn the tables on beach vitex, a plant native to the Pacific Rim that was first welcomed to the coast with open arms.

Vitex is hardy and can be beautiful, but it's also ecologically damaging. Officials are hoping to make it one of the handful of established invasive species ever largely eradicated in the Tar Heel State.

"I think it's certainly something that's within reach," said Dale Suiter, a Raleigh-based biologist with the U.S. Fish and Wildlife Service. "With things like kudzu, it's too late. But I don't think that's true here."

Working with South Carolina researchers, the group has zeroed in on the best method and time to kill the woody shrub. Suiter said that's in late summer, when the plant is already starting to go dormant and beginning to move fluids - and any herbicide that's applied - into its roots.

The task force recently received a $128,485 grant from the National Fish and Wildlife Foundation to help fund widescale eradication, educational outreach and surveying efforts. "We just had no ability to do that before this," said Melanie Doyle, state coordinator for the Carolinas Beach Vitex Task Force.

But officials know it's much too early to claim victory. Hundreds of miles of coastline still need to be surveyed or resurveyed, and the nearly 300 known vitex sites need to be dealt with. And this February vitex was found along a bulkhead in Wilmington, which could mean the plant has colonized estuarine shorelines along the state's numerous sounds, tidal creeks and waterways.

Vitex rotundifolia is a prolific seed producer, churning out up to 20,000 seeds per square meter that can easily be spread by animals, wind or even the current. Vitex, which features beautiful purple flowers in summer, also can grow up to 15 feet a year - double that amount in areas with irrigation systems - and is salt-tolerant. That makes it a seemingly perfect dune plant, which is what first attracted folks at N.C. State University to the exotic shrub from Asia with the aromatic silvery leaves. The school's arboretum began marketing the plant to nurseries in the mid-1980s, just as coastal development in North Carolina really began taking off.

In South Carolina, the plant gained popularity as a quick fix to help stabilize dunes and beaches battered by Hurricane Hugo in 1989. But as vitex began overwhelming dunes and forcing out native vegetation, officials realized something had gone dreadfully wrong.

It's not just the displacement of sea oats and sea grasses that makes vitex particularly worrisome to environmentalists. The plant doesn't have any of the dune-building and stabilizing benefits of native beach vegetation. Vitex is also a threat to nesting sea turtles and shorebirds. Yet it is those very drawbacks that have helped the task force develop a strong network of partners, ranging from federal and state agencies to the volunteers who monitor beaches for sea turtle nests.

Unlike most weeds, the worst thing that concerned property owners can do is to cut or dig up vitex. That's because runners cut off from the mother plant will simply sprout roots and start growing on their own. "To try and nip any future infestations in the proverbial bud, several coastal communities have adopted rules banning vitex from their beaches.

The N.C. Department of Agriculture wants to have vitex declared a noxious weed, which would make it illegal to be sold in the state. Full Article

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'Rock snot' has outdoors enthusiasts concerned in Maine

BY JOHN RICHARDSON, Blethen Maine Newspapers

As anglers return to the state's streams and rivers this spring in search of prized trout, Maine officials will be watching for something else: a fast-spreading algae called "rock snot" that's fouling some of the world's pristine trout streams.

Rock snot, also commonly called didymo, is an invasive species that appears to hitch rides from one river to another on boots or waders worn by fishermen. Once introduced to a new stream that has clean, fast-moving water, didymo can spread quickly and coat the rocky bottom with thick, gooey brown mats of algae.

There is no known way to get rid of it, and experts say it can disrupt river food webs and threaten valuable recreational fisheries. It was first discovered in New England last summer when it invaded a stretch of the Connecticut River between northern New Hampshire and northern Vermont. Officials fear that Maine could be next.

"The thing about Didymo is it follows people and ends up in pristine fishing areas," said Paul Gregory, an invasive species specialist with the Maine Department of Environmental Protection. "It's the fishermen who are seeking out pristine trout waters. ... They're likely to be coming to Maine as well."

Maine's DEP is concerned enough about the risk of spreading didymo that employees who wade through streams this summer as part of biological monitoring programs will use boots that don't have felt soles. Felt soles are better for grabbing underwater rocks and preventing slips and falls. But they also are more difficult to clean and dry. Moist surfaces can keep the algae alive for up to two weeks. Gregory said DEP staff will be more diligent in cleaning boots and will use rubber-soled waders whenever it won't be too dangerous. "If anybody's a good candidates for spreading it, it's us," he said.

"For a lot of people who are really conscious about it, you make a mixture of water and bleach in a spray bottle and spray down your gear when you're done. The problem with that is you don't want to have bleach residue on your boots either," Bernstein said. Officials in Maine and New Hampshire recommend soaking boots in hot tap water and soap or detergent for 30 minutes and thoroughly drying them before the next use. Full Article