The Plant Disease Diagnostic Clinic is a facility of the Department of Plant Pathology and Plant-Microbe Biology at Cornell University. The clinic provides fast and accurate plant disease diagnosis and up-to-date pest control recommendations for anyone from home owners to commercial growers. Services include analysis of plant material and soil for bacterial, fungal, viral, and nematode pathogens.

The Clinic promotes a "Test, Don't Guess" attitude. This is because we feel that knowing the pest affecting your plants and crops prior to treatment is essential for the best chances of recovery. The "Test; Don't Guess" policy allows for the appropriate selection and efficient use of control methods.

When sending a sample to the laboratory please include a Sample Submission Form. Please follow the instructions for submitting samples. A sample that is improperly collected, packed, and/or shipped and arrives in poor shape is very difficult to diagnosis.

NEW: PLANT HEROES - Educational site about pests and diseases, designed for K-12 - 4/24/12
NEW: NYS DAM Press Release: 300K ACRES DE-REGULATEED FOR GOLDEN NEMATODE - 2/16/12
NEW: Christmas Tree IPM - Cornell Plant Disease Diagnostic Clinic - 12/22/11
NYS DAM Press Release: GARLIC GROWERS, BEWARE OF IMPORTED NEMATODE - 10/10/11
Soybean Vein Necrosis Virus Confirmed in New York State
Willow Factsheets

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