Checking Corn Fields for Damaging Levels of Nematodes
Most Iowa corn fields have several different species of plant-parasitic nematodes present at low numbers. It’s only when numbers occur at damaging levels that symptoms appear and damage occurs. The potential for plant-parasitic nematodes that feed on corn to cause yield reductions warrants attention. This article discusses when and how to sample for plant-parasitic nematodes that can damage corn.