Identify the grub species and confirm infestation
Check lawn for signs of grub damage
Rake up dead grass and thatch
Apply beneficial nematodes to moist soil
Apply milky spore if Japanese beetle grubs are present
Use a grub control insecticide labeled for your lawn if infestation is severe
Water the lawn after treatment if the product requires it
Keep the lawn healthy with proper mowing, watering, and fertilizing
Reduce thatch buildup
Remove adult beetles by hand when possible
Use traps carefully and away from the lawn if needed
Recheck the lawn after treatment and retreat if necessary