Plant-parasitic nematodes that feed on corn are relatively common in Iowa fields. One or more species of these nematodes were found in 92 percent of samples submitted to the Iowa State University Plant and Insect Diagnostic Clinic from 2000-2010 (see ICM News article here).
Iowa State University
Tylka, Gregory L., "Sampling Corn Fields to Assess Potential for Yield Loss from Plant-parasitic Nematodes" (2021). Integrated Crop Management News. 2697.
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