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

Fig. 1. Number of samples from Iowa corn fields analyzed by the ISU Plant and Insect Diagnostic Clinic for plant-parasitic nematodes from 2000 to 2010. There were 331 total samples.



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