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Trical Diagnostics
DIAGNOSING plant diseases. SOLVING agricultural problems.

Trical Diagnostics

Diagnosing plant diseases. Solving agricultural problems.

  • About Us
  • Services
    • Fees
    • Plant, Soil, & Water Testing
    • Disease Resistance Screening
    • Plant Pathology Research, Consulting, Special Projects
  • Pathology Resources
    • Trending Pathology
    • Extending Plant Pathology
  • Contact
  • Sample Submission
    • Account Set Up
    • How To Collect Samples
    • How To Submit Samples
    • Download Needed Documents

How To Collect Samples

  • Download: Guidelines for Collecting and Submitting Plant Samples
  • Download: Guidelines for Collecting and Submitting Soil Samples
  • Download: Guidelines for Collecting and Submitting Nematode Samples

Ready to submit your sample?

Here is How to Submit Samples.

Lab Physical Address:
8770 Highway 25
Hollister, CA 95023

Mailing Address (Mail/Samples):
8100 Arroyo Circle
Gilroy, CA 95020

During the coronavirus emergency, the TriCal Diagnostic lab remains open. Samples to be shipped or mailed should be sent to our Hollister address below:

TriCal Diagnostics c/o Steve Koike
8770 Highway 25
Hollister, CA 95023

Salinas Sample Drop-off:
Grower-Shipper Association
512 Pajaro Street
Salinas, CA 93901

Watsonville Sample Drop-off:
Perry Laboratory
424 Airport Blvd
Watsonville, CA 95076

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Contact Us:

diagnostics@trical.com

831-637-0195

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