Posts Tagged ‘Invasive Species’

Wednesday, August 19, 2009

Fall Webworms: Our Invasive Insect Export

It almost seems too early, but there they were, web and all, clinging to my Royalty Crabapple: fall webworms (Hyphantria cunea).

For most folks, the sight of a webby mass clinging to the branches of a deciduous tree brings on thoughts of tent caterpillars. I learned early on in my youth that if you see this mass in the spring, it is tent caterpillars, but if it is late summer or fall, you are looking at fall webworm, an entirely different insect. If you’re still not sure, you can verify which insect it is be monitoring the movements of the caterpillars. Fall webworms stay within their webby nest all the time, eating and sleeping there. They do not leave until they are ready to pupate. Tent caterpillars, on the other hand, only use their webby nest for shelter at night and during inclement weather. When they get hungry, they must leave the nest to forage on nearby leaves. » Continue Reading.


Wednesday, July 22, 2009

Emerald Ash Borers and the Purple Triangles

Emerald Ash Borer Trap Hanging in Chestertown in June 2017 (photo courtesy Greg Dower)The purple triangles seen hanging on trees along Adirondack roads are traps designed to lure and capture emerald ash borers (Agrilus planipennis). Emerald ash borers are small (half-inch long) metallic green insects that are coming to us from Asia via Michigan and wreaking havoc on the ash trees of North America.

Recently I wrote a piece on the American elm and its decline thanks to an insect and a fungus. The same thing is happening today with the American beech. But the emerald ash borer (EAB) acts alone. This insect overwinters under the bark of the ash tree (black, green and white ash are all susceptible) and emerges as an adult in the spring. After mating, the female lays her eggs in the crevices of the bark and about ten days later they hatch. The larvae now begin their devastating work, tunneling under the bark, eating as they go. When winter comes, the larvae become dormant, waiting for spring to arrive, at which point they emerge as adults and the cycle begins again. » Continue Reading.


Sunday, July 12, 2009

Hawthorn vs Hawthorn – Avoiding The Invasives

I took a few moments this morning to read the comments on past posts to the Almanack (thank you, all) and found a potentially distressing note on my deer-proofing post. I had mentioned that a good deer proof plant to include in your arsenal was hawthorn, and someone commented that we need to be careful about invasive hawthorns. Invasive hawthorns? I didn’t know there were such things, so I had to look it up.

Lo! and behold, the anonymous commenter was correct: there is an invasive hawthorn out there. It is Crataegus monogyna, the oneseed hawthorn, aka: English hawthorn. This plant has become quite the pest out in California, but it seems to have made inroads throughout the West as well as the East. According to the range map I saw, the middle of the US seems to be free of this invasive so far. » Continue Reading.


Wednesday, July 8, 2009

Lake Placid Closes One Boat Launch, Surveys Milfoil

On Lake Placid yesterday, efforts to contain recently discovered variable leaf milfoil moved forward on two fronts. As village officials prepared to close the village-owned launch on Victor Herbert Road—redirecting boat traffic to the NYSDEC launch next to the Lake Placid Marina—the Lake Placid Shore Owner’s Association released the first aerial photograph of the milfoil bed on Paradox Bay.


The photo, taken by the volunteer team of Lake Placid-based environmentalist and aviator Ed McNeil and Dr. Charles D. Canham, a forest ecologist with the Cary Institue of Ecosystem Studies, in Millbrook, was from a survey of the lake’s littoral regions in search of secondary establishments of the invasive weed. None were discovered. According to McNeil, the the favorable angle of the sun and the transparency of the lake water allowed them to survey to depths of about 12 feet. » Continue Reading.


Monday, June 29, 2009

Opinion: DEC’s Low-keyed Response to Aquatic Invasives

First appeared in the June 28, 2009 Sunday Gazette

Summer has come to the Adirondacks, and with it the anticipated flotilla of recreational boaters and fishing fleet, accessing our waterways through a dense network of public and private boat launches.

Joining this annual cavalcade, a horde of invading plants and marine animals: organisms with a proven record of destroying the lakes, ponds and streams they infest. Lake associations and other private organizations across the park are once again gearing up for another season of defense against the introduction of these dangerous pests. » Continue Reading.


Thursday, June 25, 2009

Milfoil Discovered in Lake Placid

The Board of Trustees of the Lake Placid Shore Owners’ Association (LPSOA) today reported that a strain or strains of milfoil have been discovered at three sites on Lake Placid. Over the past week, two separate samples were removed from Paradox Bay and one from East Lake. Biologists working with the Adirondack Park Invasive Plant Program (APIPP) have tentatively identified two of the samples as Variable Leaf Milfoil (VLM).

The University of Maine Cooperative Extension describes Variable Leaf Milfoil as “an aggressive aquatic plant that can form dense mats that congest waterways and crowd out native aquatic plants. Thick growth of this plant can impair recreational uses of waterways including boating, swimming and fishing. Dense growth of variable-leaf milfoil degrades the native habitat of fish and other wildlife, and may also provide breeding areas for mosquitoes. The main method of dispersal of this plant appears to be fragmentation. Plant fragments are moved around by people, animals and water currents.” » Continue Reading.


Sunday, June 14, 2009

Fighting Colorado Potato Beetles in the Adirondacks

Last year it seems my yard was the staging ground for every potato beetle in Newcomb. No other gardeners I’ve spoken with seem to have had any, yet my potatoes were covered and defoliated faster than my patrols could keep up. This spring I resolved that I would not fall victim to these insects. I ordered an organic-certified insecticide, and read that by planting my ‘taters later (say, mid-June), I could avoid an infestation.

Well, I went out in the garden the other day (after planting my potatoes…I just couldn’t wait another week), and found a Colorado Potato Beetle on a potato plant that had just emerged, a sprout from an overlooked potato from 2008. I crushed it beneath my boot. Then I found another…and another. A couple days ago I went back out and found that not only did I have adult beetles grazing on these resurrected plants (they are sprouting up all over the place – I must work on my potato digging skills), but they were mating and laying eggs. I smooshed several clusters of the brilliant orange eggs before I went inside and mixed up a batch of spray. Thus armed, I commenced my attack. Then it rained. » Continue Reading.


Monday, June 8, 2009

DEC to Track Emerald Ash Borer with Traps

The New York State Department of Environmental Conservation (DEC) is setting baited traps in ash trees across upstate New York in an effort to search for possible infestations of the Emerald Ash Borer (EAB), a tree-killing beetle. You will soon be seeing the purple prism traps deployed in treelines throughout New York, with a concentration in areas adjacent to neighboring states and Canadian provinces that have already detected this potentially devastating invasive species, including several Adirondack counties. » Continue Reading.


Sunday, May 3, 2009

Adk Invasive Program Wins EPA Environmental Quality Award

The Adirondack Park Invasive Plant Program (APIPP) was one of 26 projects across New York State to receive the U.S. Environmental Protection Agency’s highest honor: the Environmental Quality Award. The award ceremony was held last week in Manhattan in conjunction with Earth Day. Founded in 1998 and housed by The Nature Conservancy in Keene Valley, APIPP is leading the charge to protect Adirondack natural resources from the damaging effects of invasive species by engaging partners and finding solutions through a coordinated, strategic, and integrated regional approach. Unlike many places, the opportunity exists in the Adirondacks to hold the line against invasive species and prevent them from wreaking havoc on natural resources and economic vitality. » Continue Reading.


Tuesday, December 16, 2008

DEC Seeks Comments on Firewood Measures

The New York State Department of Environmental Conservation (DEC) today announced it has proposed making permanent a regulation to restrict the import, sale and transport of untreated firewood to aid in the fight against the spread of tree-killing pests and diseases. A public-comment period on DEC’s proposal runs through Feb. 9, 2009. DEC encourages interested parties to weigh in on the proposal – which can be viewed on the DEC website — at two public hearings or through written comments. » Continue Reading.


Wednesday, October 29, 2008

Keep An Eye Out for Emerald Ash Borer

The arrival of the shiny, emerald green beetle, about 1/2 inch long and 1/8 inch wide, in the U.S. may be as serious a threat to white, green, and black ash trees as Dutch elm disease was to the American elm.

Ash trees are a common species; green and black ash grow in wet swampy areas and along streams and rivers; white ash is common in drier, upland soils. Many species of wildlife, including some waterfowl and game birds, feed on ash seeds. Ash is used as a source for hardwood timber, firewood, and for the manufacturing of baseball bats and hockey sticks. The New York State Department of Agriculture and Markets estimates the total economic value of New York’s white ash to be $1.9 billion dollars. » Continue Reading.


Saturday, September 27, 2008

DEC Grants Available for Invasive Species

New York State Department of Environmental Conservation (DEC) Commissioner Pete Grannis announced today that grant applications are now being accepted for projects proposing to eradicate terrestrial invasive species. Terrestrial invasive species is defined as a plant or animal that lives or grows predominately on land. Applications will be accepted until October 31, 2008

DEC is making up to $1 million in state grants available to municipalities and not-for-profit organizations for projects to eradicate and/or permanently remove infestations of terrestrial invasive species throughout the state. The funding for these grants was secured in the 2008-09 enacted state budget, through the Environmental Protection Fund. State funds can be used to pay for up to one-half of the cost of selected projects. Individual grants for terrestrial eradication proposals will be awarded for projects that range from $2,500, up to $100,000. » Continue Reading.


Thursday, July 3, 2008

Adirondack Park Invasive Species Awareness Week

Adirondack communities and organizations will celebrate the 3rd annual Adirondack Park Invasive Species Awareness Week July 6- July 12, 2008.

WHY: Invasive plants and animals threaten Adirondack lakes, ponds, rivers, and forests, which are precious resources that underwrite the economy of many communities through recreation, tourism, forestry, and numerous other uses.

WHAT: Learn about the issues surrounding invasive species (both plant and animal, aquatic and terrestrial) and about the importance of native biodiversity in the Adirondacks by attending workshops, field trips, lectures, and control parties. » Continue Reading.


Tuesday, June 24, 2008

Adirondack Park Invasive Plant Program

The Adirondack Park Invasive Plant Program (APIPP) will host a training session in invasive plant identification for volunteers who want to survey lakes and ponds for aquatic invaders such as Eurasian watermilfoil that are invading Adirondack waters. The session will be held in Old Forge on Thursday, June 26. The session is free and open to the public, but space is limited. To attend, RSVP to Hilary Oles at (518) 576-2082 x 131 or holes@tnc.org.

Left to spread, invasive plants reach nuisance levels that degrade recreational and natural resources. Luckily, as the boating season begins, hundreds of citizens will keep watchful eyes for new infestations, which can lead to quick action to ensure the eradication of the invasives. » Continue Reading.