Samples will not be received at other times of the year. Collect fresh specimens. Send a generous amount of material, if available, during the period the Plant Clinic is open, May 1 thru Sept 15. 2. Ship in a crush-proof container immediately after collecting. If holdover periods are encountered, keep specimen cool.
Mail packages to arrive on weekdays.
Avoid weekend lay overs. Include completed Plant Clinic Specimen data form and Fee with each sample submitted. Diagnoses and recommended controls by the University of Illinois Plant Clinic are based solely on the material and information submitted. The less representative the sample, and the less complete the information provided, the greater the chance for misdiagnosis. Leaf - Collect early and late stages of infection.