Answer: While lots of June Beetle adults can cause alarm, these insects are more of a concern in their larvae form, the white grubs that can do damage to turf when they occur in large numbers. The larvae (when deemed to be a significant threat to turf) are controlled in late July with a pesticide application to the soil. The adults are too mobile for control to be feasible. Your Extension Office (phone 903-675-6130) has a free publication on June Beetles.
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