NOTICE: Come join us for PSD 2019 ! Plant Science Day 2019 Wednesday August 7th

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The Plant Disease Information Office

 Sample Submission Information


Questions or requests for information can be made by phone, email, or in person.

Dr. Yonghao Li, Plant Pathologist


Phone: (203) 974-8601

Toll Free Phone: 1-877-855-2237

Plant samples can be submitted in person at our office or by mail.

    Sample Submission Guidelines (PDF format)

    Sample Submission Form (fillable PDF Format) 

   PDIO Mailing Address:

      Plant Disease Information Office
      The Connecticut Agricultural Experiment Station
      P.O. Box 1106
      New Haven, CT 06504
Office Location Address (use this address for UPS and FedEx, as well as to visit):
      Plant Disease Information Office
     Jenkins-Waggoner Laboratory
     The Connecticut Agricultural Experiment Station
     123 Huntington Street
     New Haven, CT 06511

Plant images can be submitted by email


The PDIO is open from 8:30 a.m. to 4:30 p.m. Monday - Friday

PDIO Hours of Operation and Holiday List