New York
New York Invasive Species Research Institute
Cornell University
College of Agriculture and Life Sciences
New York Natural Heritage Program
New York Invasive Species Clearinghouse
Cornell University Cooperative Extension
New York Sea Grant
PRISM information
Non-Native Plant Species Invasiveness Assessment
New York Flora Atlas
New York Flora Association
Adirondack Park Invasive Plant Program
Videos on Tree Identification by Don Leopold
Dendrology - SUNY-ESF Television
National
Bugwood Network and Invasive.org
Center for Invasive Species and Ecosystem Health
University of Georgia
Warnell School of Forestry and Natural Resources
College of Agricultural and Environmental Sciences
National Invasive Species Information Center
USDA - National Agricultural Library
(national news, fact sheets, "Manager's Toolkit")
NatureServe Explorer Invasives Database
NatureServe
Weeds Gone Wild
Plant Conservation Alliance
National Park Service
(fact sheets, publications, recipes)
Plant Guide: Plant Invaders of Mid-Atlantic Natural Areas
Nonindigenous Aquatic Species
US Geological Survey
(factsheets, reference links, database)
WeedCenter.org
Center for Invasive Plant Management
Montana State University
InvasivePlantCenters.org
National Network of Invasive Plant Centers (NNIPC)
Aquatic Nuisance Species Task Force
ANSTF Regional Panels
Don't Move Firewood
Identification Guides
Delaware Invasive Species Council
Mistaken Identity, Invasive Plants and Their Native Look-alikes
National Park Service / U.S. Fish and Wildlife Service
Plant Invaders of Mid-Atlantic Natural Areas
Maine Volunteer Lake Monitoring Program
Maine Field Guide to Aquatic Invaders and Their Native Look Alikes
U.S. Department of Agriculture, Forest Service, Northeastern Research Station
Invasive Plants Field and Reference Guide
U.S. Department of Agriculture, Forest Service, Southern Research Station
Nonnative invasive plants of southern forests: a field guide for identification and control
Minnesota SFI Implementation Committee
Minnesota's Forest Invaders
University of Vermont
Asian Longhorned Beetle Identification
The Nature Conservancy - Oregon
GardenSmart Oregon: A Guide to Non-Invasive Plants
Oregon Department of Agriculture
Western US Invasive Plant EDRR Guide
NOAA Sea Grant
A Field Guide to Fish Invaders of the Great Lakes Region
Ontario Stewardship
Field Guide to Aquatic Invasive Species
Emerald Ash Borer Links
NYIS.info EAB page
DEC EAB page
Stop The Beetle
EAB Info
Don't Move Firewood
DEC Conservationist Articles
Intruders! New York's Battle to Stop the Spread of Invasive Species
Tiny Beetle, Big Problem. DEC Battles the Emerald Ash Borer
Conservationist for Kids, Fall 2009 Issue Related to Invasive Species