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Diagnostic Resources

🔔 After 24 years of continuous USDA NIFA cooperative agreement support, delays in the next funding opportunity have required NPDN to strategically scale back operations. Remaining funds under a no-cost extension are being used to preserve critical infrastructure and sustain essential national functions. As of September 1, 2026, network activities will be paused or operate at reduced capacity, with full operations expected to resume when the next cooperative agreement and associated funding are in place.

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  • ID tool websites, mobile apps, and CAPS screening aids
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Search for a Lucid identification or diagnostic tool

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  • Advanced Taxonomic Training Videos - NPDN Youtube Channel
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Improving communication and virus knowledge across the cucurbit industry

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Search for symptoms mode of action, herbicides, chemicals, and plants

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Information about invasive insects and diseases

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Insect, plant diseases, and weed management

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PLANTS Database - vascular plants, mosses, liverworts, hornworts, and lichens of the U.S.

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NPDN supports plant health and biosecurity in U.S. agricultural and natural ecosystems by providing expert diagnostic capacity, communication, coordination, and quality pest and disease diagnostic information.

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