Cool soil conditions have delayed emergence of some early planted fields. Information from southern Iowa indicates that 3 weeks after planting some corn has yet to emerge. Poor plant stands may result from poor germination or be caused by soil insects such as white grubs or wireworms. For farmers that need to replant and that previously applied a soil insecticide, questions may be raised about what product can be legally used during the replanting operation.
Iowa State University
Rice, Marlin E., "Soil insecticides and replanting restrictions" (2002). Integrated Crop Management News. 1788.
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