Montana State University.
The Center for Invasive Species Management closed in 2015. Archives of relevant materials are available here.
Texas A&M AgriLife Extension.
Louisiana State University Agricultural Center. Research and Extension.
University of Alaska - Fairbanks. Cooperative Extension Service.
Texas State University System.
University of New Hampshire. Cooperative Extension; New Hampshire Department of Agriculture, Markets & Food.
University of New Hampshire. Cooperative Extension.
Montana Fish, Wildlife, and Parks.
Texas A&M University. Entomology.