The Plant Disease Information Office

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 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 Form (fillable PDF Format)
      Mailing Address:           
                  Plant Disease Information Office
                 The Connecticut Agricultural Experiment Station
                 123 Huntington Street
                 New Haven, CT 06511
Plant images can be submitted by email to
The PDIO is open from 8:30 a.m. to 4:30 p.m. Monday - Friday

PDIO Hours of Operation and Holiday List