About us

Contact information:

Plant and Insect Diagnostic Clinic
2445 ATRB
2213 Pammel Dr.
Ames, IA 50011

Phone: 515 294-0581
E-mail: pidc@iastate.edu

Services, forms, and fees* for Iowa residents.

Plant and Insect Diagnostic Clinic staff diagnose plant health problems and identify insects. Please follow links below for detailed information about our services and how to submit samples.  Be sure to review our Terms and Conditions.  Do not send money with your sample, you will receive a statement from ISU after your diagnosis is complete.

New this year: PIDC Sample Tracker! 

Check the status of your plant problem diagnosis or insect ID here (you must know the sample number that was emailed to you when the sample was checked in): PIDC Sample Tracker

Services (follow the link for service and sampling details) Submission Form Fee
Plant Problem Diagnosis (disease, insect, abiotic) PIDC 45 - Form $25.00*
Insect Identification PIDC 45 - Form $10.00
Soybean Cyst Nematode (SCN) egg count PIDC 32 - Nematode Form $30.00
Nematode Identification (corn, turfgrass, fruit, and vegetables, etc.)  PIDC 32 - Nematode Form $40.00

* Fee is for standard morphological and microscopic diagnosis. Additional fees may apply for specialized media, and molecular and serological-based diagnostic methods. See details on the Plant Problem Diagnosis page.  We will contact you before any additional testing. 

Out-of-state residents

Contact us before submitting an out-of-state sample for fees and restrictions, or contact your local diagnostic clinic on the National Plant Diagnostic Network- NPDN

PIDC Diagnosticians

Dr. Chelsea Harbach, Plant Disease Diagnostician
Zach Schumm, Insect Diagnostician 

Undergraduate PIDC Laboratory and Office Assistants

Jenna Goslin, Junior, Biology major, Horticulture minor
Caleb Spry, Senior, major in Horticulture, minor in Technical Communications
  Lily Pumphrey, Junior, Biology major, Horticulture minor, Spanish minor