Resource Search

United States Department of Agriculture (USDA), Agricultural Research Service (ARS) scientists and collaborators confirmed the presence of a newly described Eriophyid mite, a potential biological control agent for the invasive tree-of-heaven, in France. The study, published in Phytoparasitica, showed that this was the first record of the mite species in the country, and the species could be a solution for managing tree-of-heaven infestations in Europe and the United States.

See also: Forest Health for more resources

Ailanthus altissima (tree-of-heaven) is a rapidly growing invasive tree species introduced to the United States nearly 200 years ago. Today, this species is a common invader in many forests across the nation. Scientists with the Northern Research Station have identified a unique biological control measure for managing Ailanthus—Verticillium nonalfalfae, a native soil-borne fungus. Check out this latest issue of Rooted in Research that explores how Verticillium can reduce Ailanthus populations.

Provides state, county, point and GIS data. Maps can be downloaded and shared.

See also: New Hampshire's Prohibited Invasive Plant Fact Sheets for additional invasive trees, shrubs, vines, and herbaceous plants

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands

In online book: Bossard, C.C., J.M. Randall, and M.C. Hoshovsky (Editors). 2000. Invasive Plants of California's Wildlands. University of California Press. Berkeley, CA

See also: Invasive Plants of Ohio for worst invasive plant species identified in Ohio's natural areas

See also: Forest Health Publications for more Invasive Species Leaflets