Integrated Crop Management

General tips for submitting plant samples* to the Plant Disease Clinic

A $10 fee is charged for plant samples. Soil samples (to check for soybean cyst nematode or complete nematode counts, including corn nematodes) cost $15 for Iowa residents and $20 for out-of-state residents. Checks should be made payable to Iowa State University.

*When herbicide injury is suspected, the samples should go to the extension weed specialists (see the Weed ID and Herbicide Injury DIagnosis form [1]).

Corn smut galls on corn [2]
Corn smut galls on corn.

This article originally appeared on page 133 of the IC-494(16) -- June 27, 2005 issue.

Source URL: