General Information
National Invasive Species Information Center
USDA, National Agricultural Library
Gateway to invasive species information; covering Federal, State, local, and International sources.
Plant Pathogen News
Read more Invasive Species News from various sources. Subscribe to Invasive Species News (Email)
Consult an expert before removing trees.Think your trees are infested with an invasive insect or pathogen? Consult an expert before taking action. Contact your local extension office or a href="http://www.isa-arbor.com/findanarborist/findanarborist.aspx" target="new">find an arborist for verification before removing or treating your trees.
National Invasive Species Council
For policy questions contact the National Invasive Species Council, an inter-Departmental council that helps to coordinate and ensure complementary, cost-efficient and effective Federal activities regarding invasive species.
Microbial Species not Established in the U.S.USDA, National Agricultural Library, National Invasive Species Information Center
A select list of plant and animal pathogens providing examples of why we must increase efforts in early detection and rapid response to prevent new introductions.