KEY POINTS:
- “True white grubs”, of the Phyllophaga genus are the only white grubs found to cause stand losses in corn.
- Damage to crops occurs only on young corn seedlings; feeding results in nutrient and moisture stress to plants.
- Scout fields by watching soils for white grubs during spring tillage; infestation may be localized.
- Pesticide application at planting or seed treatments may provide some protection. However, rescue insecticides are not effective, and replant may be warranted.
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