WSU CAHNRS

College of Agricultural, Human, and Natural Resource Sciences

Department of Plant Pathology

Clinic Services

 

The Pullman Plant Pest Diagnostic Clinic provides or coordinates the following services:

Plant problem diagnosis: The Plant Pest Diagnostic Clinic provides diagnosis by using visual and microscopic examination, pathogen culturing, immunological tests such as ELISA, and molecular tests like PCR for a limited number of pathogens. To submit a sample please fill out a submission form and follow the guidelines for sample submission. The cost is $40.00.

Additional Plant Problem Diagnosis Options

  • Metalaxyl-Resistant Pythium Soil Testing: The Clinic can assay soil that is suspected to contain Pythium species that are resistant to the fungicide Metalaxyl. Please contact the clinic for instructions on collecting soil for the best results. The cost is $40.00.
  • Verticillium Soil Testing: The Clinic can assay soil for Verticillium dahliae. Please contact the clinic for instructions on collecting soil for the best results. The cost is $40.00. *Testing takes a minimum of 4 weeks*
  • Phytophthora Soil and Water Baiting: The Clinic can assay soil and water samples for the presence of Phytophthora. Please contact the clinic for instructions on collecting soil for the best results. The cost is $40.00.

Insect/Arthropod Identification: The Clinic is able to identify common plant insect/arthropod plant pests. Please submit with a submission form and follow the guidelines for insect submission. The cost may range from $25.00 to $40.00.

Plant/Weed Identification: The Plant Pest Diagnostic Clinic can offer plant identification as well, but will in most cases defer to Dr. Richard Old, who is contracted by the Department of Crops and Soil Sciences to make these identifications. Samples which arrive at the Clinic will be forwarded digitally to Dr. Old. Clients may submit samples directly to Dr. Old by visiting the CSS website or http://css.wsu.edu/extension/weed-identification/.

Department of Plant Pathology, PO Box 646430, Washington State University, Pullman WA 99164-6430, 509-335-9541, Contact Us
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