Effects of Seed Treatments and a Soil-applied Nematicide on Corn Yields and Nematode Population Densities

Date
2012-01-01
Authors
Tylka, Gregory
Da Silva, Mychele
Rusk, Ryan
DeJong, Joel
Sievers, Joshua
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Plant-parasitic nematodes are microscopic worms that feed on plants. Almost every nematode that feeds on corn is capable of feeding on many other plants. These nematode parasites are thought to be native to most Iowa soils and to have fed upon native plants before corn was grown as a cultivated crop. Population densities (numbers) of most species of plant-parasitic nematodes that feed on corn have to increase to damaging levels (called damage thresholds) before yield loss occurs.

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RFR A1148, Plant Pathology and Microbiology
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