Hemlock wooly adelgid is a dangerous pest of hemlock trees.

The clitellum or collar of the jumping worm goes all the way around the body and is smooth. The worms are very active and have a sheen to them.  When disturbed, the jumping worm (amyhthas agretis) will actively trash and flip, slither snake-like, and may shed their tails.
Image by Wisconsin Department of Natural Resources

Jumping worms (amynthas agretis) showing up locally

 A large poison ivy vine growing up a tree.

70% of the US population is sensitive to Poison ivy

Invasive & Nuisance Species

Invasive species are non-native plants and animals that spread rapidly causing ecological and economic harm. Common examples are the emerald ash borer, Norway maple, and Asian clam. Invasive species are usually spread by humans. Once established, they become increasingly difficult to manage. Early detection of invasives is key to containment and practical management.

Nuisance species may be native or non-native, and may cause ecological and economic harm. Common examples are poison ivy and Canadian geese.

Poison Ivy 
Toxicodendron radicans

Poison Ivy

Eastern poison ivy is expected to become more widespread in Central New York due to global climate change. Learn how to identify it, here.

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Asian longhorned beetle (male)

Asian Longhorned Beetle

First found in New York in 1996, the Asian Longhorned Beetle is a serious threat to our maples and other hardwood trees.

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Common Reed seed head

Common Reed

Common reed can rapidly form dense stands of stems which crowd out or shade native vegetation in inland and estuary wetland areas.

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Hemlock woolly adelgid  (Adelges tsugae) -adult

Hemlock Pest

The Hemlock Woolly Adelgid lives and feeds on hemlock trees. Infested trees can die within 2 years, although 10-12 years is more common.

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Field infestation of Giant Hogweed (Heracleum mantegazzianum)

Giant Hogweed

Giant hogweed is one of New York's most striking and dangerous invasive plants. Learn how to recognize and manage it safely on our site.

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bed bug 
Cimex lectularius

Bed Bugs

Bed Bugs are small insects that can inhabit bedrooms and hotel rooms. They feed on blood and their bites can cause a rash. Learn how to identify and manage them, here.

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Contact

Connor Young
Team Leader, Environment and Natural Resources
chy32@cornell.edu
518-622-9820 x113

Last updated February 11, 2019