Plant Diseases & Nutritional Problems
Plant diseases
Nutritional deficiencies
Abiotic disorders
Weed identification
Services
The Purdue University Plant and Pest Diagnostic Laboratory works for you to identify many types of plant problems and related issues. We work with both physical samples and digital images. We accept both commercial samples of all types and homeowner samples. This service is available to anyone in the continental United States. However, if you reside outside of Indiana we suggest you contact your local Extension Service office or a diagnostic lab in your region for assistance.
Follow this link for University Related Plant Disease and Soil Testing Services located in the United States.
What We Diagnose
Insects, Mites & Vertebrate Pests
Insects
Mites
Spiders
Vertebrate pests
Honey Bee Genome Analysis
Genome-based colony analysis
All U.S. states accepted
Results via email
Services We Don't Provide
Soil or tissue testing
Pesticide residue testing
Water testing
Nematode soil counts
Mushroom ID (consumption)
Herbicide resistance testing
Contact us for referrals to labs that provide these services.
Sample Fees
Base fee covers routine isolations, microscope exam, and diagnosis of physical samples and/or digital images.
Standard — Indiana
$11
per sample
Plant diseases, insects, mites, spiders, vertebrate pests, weed ID, abiotic disorders.
Standard — Out of State
$22
per sample
Same services as Indiana rate. All continental U.S. states.
Turf — Homeowner
$11
per sample
Out-of-state:$22
Non-commercial homeowner turf samples.
Turf — Commercial
$25
per sample
Out-of-state:$100
Golf courses, sports fields, sod farms, commercial lawn care.
Honey Bee Genome
$85
per sample
All U.S. states. No out-of-state surcharge for this service.