Gateway to invasive species information; covering Federal, State, local, and International sources.
USDA, National Agricultural Library
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.
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.