Testing for Plant-parasitic Nematodes that Feed on Corn in Iowa 2000-2010

Fig. 2. Monthly distribution of the number of samples submitted to the ISU Plant and Insect Diagnostic Clinic from Iowa corn fields to be tested for plant-parasitic nematodes from 2000 to 2010. There were 329 total samples with a corresponding month of submission.



Image from Plant Health Progress article:
Testing for Plant-parasitic Nematodes that Feed on Corn in Iowa 2000-2010