An official website of the United States government.

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.

Home / Invasive Species Resources

Invasive Species Resources

Provides access to all site resources, with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source.

Displaying 1 to 20 of 30

Search Help

Virginia Tech. Department of Entomology.

University of Vermont. Entomological Research Laboratory.
Virginia Tech; Virginia State University. Virginia Cooperative Extension.
This Best Management Practice document is a set of guidelines for home growers of landscape boxwood to avoid introduction of the boxwood blight pathogen into a landscape or, if the disease is already present in a landscape, to manage the disease in the most effective manner and avoid spread of the disease to new locations. See also: Resources for Plant Diseases for more publications
Oregon State University. Extension Service.
This concise publication gives useful information for homeowners, master gardeners, and professional landscapers about the boxwood blight disease: its symptoms, sanitation measures when it is discovered on a property, and preventive measures.
Virginia Tech; Virginia State University. Virginia Cooperative Extension.
Boxwood blight (also called "box blight" in Europe), caused by the fungal pathogen Cylindrocladium pseudonaviculatum (=C. buxicola), was found for the first time in the United States in North Carolina, Virginia and Connecticut in 2011. The first reported infestation in the U.S. was in a North Carolina nursery and the disease was introduced to Virginia on plants from that nursery. Spread outside the two Virginia locations, both of which are fields owned by a single nursery, has not been reported. However, growers should be aware of the symptoms of boxwood blight and monitor nursery and landscape boxwoods for symptoms.
University of Vermont. Forest Pathology.
Portland State University.
University of Richmond (Virginia).
Virginia Tech; Virginia State University. Virginia Cooperative Extension.
Virginia Tech; Virginia State University. Virginia Cooperative Extension.
See also: Resources for Agricultural Insects Pests for more factsheets

Oregon State University.

Oregon State University. Extension Service.

Oregon State University. Oregon Sea Grant.

Virginia Polytechnic Institute and State University. Virginia Cooperative Extension.

Virginia Tech; Virginia State University. Virginia Cooperative Extension.

Report a suspect Spotted Lanternfly. Enables Extension professional to collect information.

Oregon State University. Extension Service.
A guide for homeowners, small woodland owners, resource managers, and conservation groups to recognize, prevent, and manage Sudden Oak Death.

Oregon State University. Extension Service.

The purpose of this publication is to alert Oregonians to the risk of introducing or dispersing invasive forest pests through firewood. Although Oregon law restricts the import of untreated commercial firewood, there still is a risk that people moving firewood will introduce or spread pests. Interstate transport of firewood by people is one of the most important avenues for dispersal of many invasive forest pests. See also: Forest Health, Insects and Disease for more publications.

Virginia Tech.

Virginia Tech researchers who helped identify the dangerous Giant Hogweed plants in Clarke County, Virginia, want residents to stay on the lookout for the plant with toxic sap that can cause severe burns — but also stressed that the weeds are believed to have been planted intentionally decades ago and haven’t spread in the years since. Anyone who suspects they have found Giant Hogweed should take photos, check online to compare the plant to giant hogweed photos, and then contact a Virginia Cooperative Extension agent.