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U.S. Department of Agriculture
National Invasive Species Information Center
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Invasive Species Resources

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Arizona Plant Diagnostic Network
University of Arizona; USDA. Animal and Plant Health Inspection Service; Arizona Department of Agriculture.
The Arizona Plant Diagnostic Network is designed to link growers and master gardeners with plant experts in your community and with plant scientists at the University of Arizona. These experts are available to answer questions about plant health and help identify new and emerging plant pests and pathogens in Arizona. The goal is to increase public awareness of incoming threats to the plants and produce in our State.
Institute for the Study of Invasive Species - Experts
Texas State University System.
Minnesota - Contact an Expert (Aquatic Invasive Species)
Minnesota Department of Natural Resources.
Minnesota - Contact an Expert (Terrestrial Invasive Species)
Minnesota Department of Natural Resources.
New York Invasive Species Research Institute - Expert Database
Cornell University. College of Agriculture and Life Sciences.
Ohio State Ask an Expert
Ohio State University.
Ask an Expert is an online system for asking questions and receiving expert answers quickly on a broad range of subjects. We are pleased to provide university research-based information to help improve the quality of your life, family, garden, business or community! You may submit a question here to be answered by members of our Ohio State University Extension faculty/staff or our Master Gardener Volunteers.