Connecticut Agricultural Experiment Station. Plant Disease Information Office.
University of Connecticut. Department of Plant Science and Landscape Architecture.
Oklahoma State University. Department of Entomology and Plant Pathology.
Note: Maps of potential range expansion for the red imported fire ant in Oklahoma and the United States
University of Connecticut. Connecticut Invasive Plant Working Group.
University of New Hampshire. Cooperative Extension; New Hampshire Department of Agriculture, Markets & Food.
Utah Department of Agriculture and Food.
University of New Hampshire. Cooperative Extension.