Cushioned mailers, an assortment of boxes, and business reply return labels are available to county extension offices for shipping plant samples to the Plant Disease Clinic. The business reply return label allows samples to be mailed free of charge.

Plant Sample Submission Items

• EDC 0113PP--Business Reply Return Label
• EDC 0114PP--10 ½ inch x 16 inch Bubble Cushioned Mailer
• PDO 25PP--11-¼ inch x 8-¾ inch x 3 inch Box
• PDO 26PP--11-¼ inch x 8-¾ inch x 6 inch Box
• PDO 28PP--11-¼ inch x 8-¾ inch x 12 inch Box
• PD 31--Plant Disease Identification Form

The cushioned mailer, boxes, and business reply return label can be ordered from:

Extension Distribution Center
119 Printing and Publications Bldg.
Ames, IA  50011
Phone:  515-294-5247, Fax:  515-294-2945
E-mail:  pubdist@iastate.edu

The fee for plant disease diagnosis is $10 and should be included with the plant sample and a completed Plant Disease Identification Form, PD 31. Detailed background information and a representative sample are important for an accurate laboratory diagnosis. A representative sample shows a range of symptoms, from early symptoms to advanced symptoms. Pictures of the overall symptoms and site conditions are very helpful in diagnosing plant health problems.

Details on how to collect an adequate sample for diagnosis can be found in the Iowa State University Extension publication PM-1542 Tips for Providing Insect and Disease Samples to ISU. The Plant Disease Identification Form (PD-31) is available online.

Cushioned mailers, an assortment of boxes, and business reply return labels are available to county extension offices for shipping plant samples to the Plant Disease Clinic. The business reply return label allows samples to be mailed free of charge.