Connecticut's Official 
The Plant Disease Information Office (PDIO) is part of the Department of Plant Pathology and Ecology at The Connecticut Agricultural Experiment Station (CAES). The PDIO is a full-service plant disease diagnostic laboratory that assists all Connecticut stakeholders, including homeowners and professionals. Plant samples are diagnosed utilizing molecular, serological, biochemical, and traditional diagnostic methods. The PDIO also assists with inquiries about plants, plant identification, and plant health. Inquiries and samples can be submitted via phone, email, mail, and in person. More information can be found in the Sample Submission and PDIO Brochure sections.
Contact Information
Office Hours: The PDIO is open 8:30 a.m. to 4:30 p.m. Monday - Friday
PDIO Hours of Operation and Holiday List
PDIO Mailing Address
Office Location Address
(use this address for UPS and FedEx, as well as to visit)
Link to Sample Submission Page
- Fact Sheet and other Publications -
- Updates, Alerts, and News from the PDIO -
This gallery contains images of common plant disease problems which occur in Connecticut. Clicking the link below an image will open a fact sheet which explains the disease and options for management.
--Boxwood Blight Information--
