Iowa State University professor and nematologist Dr. Don Norton found nearly two dozen species of nematodes feeding on corn in Iowa in the 1960s, 1970s, and 1980s. These microscopic worms usually are present in low numbers and do not affect yields. But the potential for plant-parasitic nematodes that feed on corn to cause yield reductions is real and warrants attention.
Iowa State University
Tylka, Gregory L., "Checking Corn Fields for Damaging Levels of Nematodes" (2020). Integrated Crop Management News. 2636.
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