Answer: If placed at a distance from your plants, the traps can sometimes help to pull the Japanese beetles away, but for most of us our yards are too small for this strategy to work -- the trap is too close and thus does attract them to your plants. The beetles can sometimes be deterred by using a spray containing neem. Be sure to read and carefully follow all of the label directions. You can also work to stop them at the grub stage by using milky spore on your lawn, although it takes time to see a difference in the adult population. Hand picking early and late in the day (when they are sluggish) can also help somewhat, knock them off into a jar of soapy water. Also, you may notice that certain plants attract them like magnets. If you avoid growing these plants, you may have fewer beetles coming into your yard overall.
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