Identification and Diagnostic Services
During the growing season (May-August), we offer a plant diagnostic clinic at the UI Extension, Ada County office Monday through Wednesday.
When bringing specimens to the office, follow the instructions below. Please bring fresh samples; do not leave in vehicle for any length of time. We do not perform postmortems as it is extremely hard to identify problems with dead material.
When sending photos, please supply the following:
- A picture of the whole plant in it's natural setting.
- An in-focus close-up picture of the problem.
- A completed form (specific to the issue, see below) with the name of the plant, if you know it.
Compliance with the above directions will provide the information necessary for an accurate diagnosis.
Our seasonal hours:
- May-August: 9 a.m. to 3 p.m.
Please drop off your sample and form at the office, and someone will get back to you.
Submitting Samples for Diagnosing or Identification
Bring a branch approximately 12–18" long showing the progression of the problem. If the problem is on the trunk, bring clear pictures. Fill out the Plant Problem Diagnostic Form (PDF). Please bring the completed form and your sample into the office. No fee.
Bring a 12" square section from the problem area (showing a portion of the healthy & unhealthy conditions), including 2–3" of soil. Fill out the Plant Problem Diagnostic Form (PDF). Please bring the completed form and your sample into the office. No fee.
Weeds and Other Plants
Bring whole plants with root system intact. Plants with flowers or seed heads are easier to identify. Fill out the Weed & Plant Identification Form (PDF). Please bring the appropriate completed form and your sample into the office. No fee.
Bring in a closed container. Avoid bringing in crushed insects. Fill out the Insect Identification Form (PDF). Please bring the completed form and your sample into the office. No fee.
Please use the Information Request Form (PDF) for all other questions or additional information not specific to the listed categories.
Cost of standard fertility test: $45
- Pick up a soil test kit at the UI Extension, Ada County office.
- Gather and prepare the soil sample according to the directions provided with the kits (PDF) and mail to the University of Idaho with your payment.
- When you receive your results, you may call the UI Extension, Ada County office at
208-287-5900for help interpreting the results.
Download Acrobat Reader to open PDF files.
Forms on this page can also be found at the UI Extension, Ada County office.