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International Year of Plant Health 2020




A National Threat
Our agriculture, forests, and landscapes are all vulnerable to the potentially devastating impacts of introduced pests and pathogens that harm plants. These invasive species affect our resources as well as industries on which the United States' economy is built. Efforts to contain and combat these species cost the government billions of dollars, and new pests and pathogens continue to be introduced to our country.

Early detection of these threats is our most effective defense, and First Detectors  perform this crucial on-the-ground task. Through online training modules and in-person workshops, this nationwide network of volunteers is equipped to identify and rapidly report the presence of exotic pests, improving protection of our natural resources and economy.




spotted lanternfly

Huanglongbing & Asian citrus psyllid

Asian longhorned beetle

oak death

Become a First Detector.

Meet more
Pests & Pathogens.


Photo credit - spotted lanternfly: Lawrence Barringer, Pennsylvania Department of Agriculture, Bugwood.org; Huanglongbing & Asian citrus psyllid: Michael E. Rogers, Center Director and Professor, University of Florida/IFAS Citrus Research & Education Center; Asian longhorned beetle: Joe Boggs, Ohio State University; sudden oak death: David M. Rizzo, University of California, Davis


You Can Help!
You can become part of the growing team of First Detectors! This network is comprised of individuals who frequently interact with plants in their everyday lives, including cooperative extension county educators, crop consultants, pesticide applicators, growers, Master Gardeners, Master Naturalists, industry representatives, NRCS conservationists, and other agricultural professionals.


First Detectors

Nationwide, first detectors protect U.S. plant resources through early detection and reporting of invasive pests and pathogens.

Contact Us

We are not receiving new First Detector Registrations through this website any more. Please find your local or regional extension office to find if they have a first detector program you can join.