On May 8, Lee Fraise (Monsanto Company) reported finding six to eight aphids per plant in coleoptile-stage corn in Des Moines County. These aphids are probably corn leaf aphids, which can occur on seedling corn in Iowa, but are usually uncommon until the plants approach the tasseling stage.
Iowa State University
Rice, Marlin E., "Corn leaf aphids in seedling corn" (2003). Integrated Crop Management News. 1641.
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