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U.S. Department of Agriculture
National Invasive Species Information Center
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Invasive Species Resources

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African Swine Fever Update: Biosecurity is the Key
Pennsylvania State University. Cooperative Extension.
All About Birds - European Starling
Cornell Laboratory of Ornithology.
Note: Nesting Behavior
Annual Plum Pox Virus Survey
Cornell University (New York). New York State Agricultural Experiment Station.
Anthracnose of Flowering Dogwood (PDF | 424 KB)
Cornell University. Cooperative Extension of Suffolk County. Horticulture Diagnostic Laboratory.
See also: Tree and Shrub Disease for more fact sheets.
Aquatic Plants and Algae: Curly-Leaf Pondweed
Pennsylvania State University. Cooperative Extension.
Aquatic Plants and Algae: Eurasian Water Milfoil
Pennsylvania State University. Cooperative Extension.
Archives of the Center for Invasive Species Management
Montana State University.
The Center for Invasive Species Management closed in 2015. Archives of relevant materials are available here.
Asian Longhorned Tick, Haemaphysalis longicornis
Pennsylvania State University. Cooperative Extension.
Avian Influenza
Pennsylvania State University. Cooperative Extension.
Biological Control: A Guide to Natural Enemies in North America
Cornell University. Agriculture and Life Sciences.
This guide provides photographs and descriptions of biological control (or biocontrol) agents of insect, disease, and weed pests in North America. It is also a tutorial on the concept and practice of biological control and integrated pest management (IPM). Whether you are an educator, a commercial grower, a student, a researcher, a land manager, or an extension or regulatory agent, we hope you will find this information useful.
Biology and Silvicultural Management of Sirex Woodwasp (2009) (PDF | 207 KB)
Cornell University Cooperative Extension. Department of Natural Resources.
See also: ForestConnect Fact Sheet Series for more factsheets.
Biology, Ecology, and Management of Scotch Broom (2010)
Montana State University Extension.
Biology, Ecology, and Management of Whitetop (Cardaria spp.) (2011)
Montana State University Extension.
Boxwood Blight: Emerging Threat to Pennsylvania's Landscape
Pennsylvania State University. Cooperative Extension.
Brown Marmorated Stink Bug - Entomological Notes
Pennsylvania State University. College of Agricultural Sciences. Entomology.
Control of Chestnut Blight

Pennsylvania State University. School of Forest Resources.
Cornell Fruit Resources: Spotted Wing Drosophila (SWD)
Cornell University.
Discula "Dogwood" Anthracnose - Pest Fact Sheet 39
University of New Hampshire. Cooperative Extension.
Ecology and Management of Invasive Plants Program
Cornell University.
Fact Sheet: Golden Bamboo (PDF | 542 KB)
Pennsylvania State University. Pennsylvania Sea Grant.
See also: Aquatic Invasive Species: Resources for additional species information