Resource Search 1 | National Invasive Species Information Center

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
Includes species related publications, webinars and other resources.

2020
USDA. Forest Service.
Inadvertently introduced in the northeastern United States in the 1930s, mile-a-minute weed is a highly aggressive invasive plant that is replacing native species in many areas of the Nation. While a biocontrol agent has been identified, finding and reaching dense patches of mile-a-minute weeds has been a problem for land managers. The solution may be drones carrying environmentally friendly pods packed with tiny weevils.

The callery pear (bradford pear) is native is East Asia and was imported to the U.S. in 1908 and first sold commercially in 1961. Callery pear trees forms dense thorny thickets, produces flowers with an offensive odor, and produces large amounts of fruit that litter sidewalks. Additionally, the ‘Bradford’ cultivar is extremely susceptible to damage from storms due to branches having narrow crotch angles; these trees will also split under their own weight after 15-20 years of growth.

English ivy is native to Europe and was introduced to the U.S. via the nursery trade. The earliest records of naturalization are from the 1870s. English ivy competes with native plants and can spread into tree canopies.

Palmer amaranth is native to Southwestern U.S. and was first reported outside of its native range in Virginia in 1915, but was not a significant weed in the Southeast until the 1990s. This species is one of the most economically important weeds of corn, cotton, and soybean; some populations are resistant to glyphosate and other herbicides.