Plant Pest Diagnostics Laboratory
The San Diego County Plant Pest Diagnostics Laboratory is an integral part of regulatory activities that protect local agriculture. The lab works directly with the California Department of Food and Agriculture, and County Apiary, Integrated Pest Management, Nursery Inspection, Pest Detection, Pierce's Disease Control, Pest Exclusion, and Quarantine programs to rapidly detect, identify, and respond to invasive pests.
Suspect Invasive Species
Please help protect our local agricultural environments by alerting us to any suspect invasive species found in the County.
Pests can be reported directly to CDFA Report a Pest Hotline 1-800-491-1899 or virtually as photographs to our email (Labs.AWM@sdcounty.ca.gov). Please send only one photograph per email due to file size limits. Include a completed Specimen for Determination form with all sample submissions.
After review, you may be asked to provide a sample at one of our two locations. Follow-up instructions will be provided via the email or phone number provided on the Specimen for Determination form.
Commercial Agricultural Operations
Plant disease diagnostics (Plant Pathology, Botany, Seed, Nematology) are offered directly through the California Department of Food and Agriculture (CDFA) Plant Pest Diagnostics Center.
Commercial nursery or greenhouse growers can now submit ornamental plant pathology samples at no cost to Greenhouse and Nursery Pathology UC Davis.
The AWM Lab typically does not handle residential garden samples; if you're experiencing garden pest/disease issues, contact the University of California Cooperative Extension (UCCE) Master Gardeners Program for assistance at (858) 822-6910.
Residents are encouraged to submit unfamiliar insects to iNaturalist for identification.
Biting, stinging, and indoor pests are referred to the county Vector Control Program.
Exotic Pest Concerns: CDFA Report a Pest Hotline 1-800-491-1899
Connect with a certified arborist: Professional Tree Care Association of San Diego
University of California Integrated Pest Management: Plant Problem Diagnostics Tool
University of California Integrated Pest Management: Pest Management Guidelines
NEW! Yellow-Legged Hornet
NEW! Cycad Scale
NEW! Lesser Snow Scale
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