Extension Agents: please use the Plant Diagnostic Information System (PDIS) to submit specimen information and remember to send the specimen with a print out of the sample summary. Please read the directions for PDIS submission and/or watch the video.
1. Send in whole plants with roots whenever possible. 2. Collect samples with mild, moderate, and severe symptoms as well as a healthy comparison.
3. Keep some soil around the root ball; wrap this in plastic and secure with rubber band around the base of the plant. Loosely enclose the foliage in plastic or paper. 4. Try to package samples so that when they arrive in the Clinic, we could repot them and have the plants survive! 5. Try to keep sample as fresh as possible until you can get it to the county agent: refrigerate if possible. 6. Include photographs or videotapes illustrating the problem if possible. 7. Mail specimens to the address found on the left navigation bar of this page.
Please include background information. Plant problems often are influenced by many different factors, so include as much information as possible:
Plant and variety
Irrigated or dryland
Soil type
Crop history
Seeding date, rate, and row spacing
Chemicals used with names, rates, and dates
Rainfall, temperature extremes, heavy winds
Pattern of symptoms in the field
Previous problems in the field
Personnel:
Mary Burrows, Ph.D., Plant Pathology Extension Specialist Barry Jacobsen, Ph.D., Plant Pathology Extension Specialist Linnea Skoglund, PH.D. Plant Pathology Diagnostician
