Hand-pick beetles early in the morning and drop them into soapy water
Use Japanese beetle traps only if local regulations allow; place away from the areas you want to protect
Apply milky spore (Bacillus popilliae) to affected areas according to label directions
Apply nematodes (Steinernema feltiae/other labeled species) to turf for grubs according to label directions
Use insecticidal soap on beetles when they’re present (direct contact)
Use neem or neem-based insecticides according to label directions (direct contact)
Use approved pyrethroids only as a last resort and follow label directions carefully
Protect plants with row covers or fine netting before beetles appear
Remove and destroy heavily infested leaves and plant parts
Keep lawns healthy to reduce grub problems (proper mowing height, watering, and fertilization)
Avoid over-fertilizing with nitrogen, which can increase beetle pressure
Reduce preferred host plants nearby when possible
Water early in the day and avoid water stress to maintain turf health