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Stop Japanese Beetles

Japanese beetles can be a huge hindrance to a healthy garden. Getting rid of Japanese beetles can seem like a difficult task, but we show you how to kill Japanese beetles, along with tips for Japanese beetle control and management.

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Hand-Picking Japanese Beetles

If Japanese beetle infestations are light, the safest and most inexpensive route to killing the beetles is to pick them off the plants by hand and drop them into a bucket of soapy water.

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Pesticides for Japanese Beetles

A number of pesticides are available against Japanese beetles. Some ingredients to look for on pesticide packaging include carbaryl, acephate, and permethrin.

Organic, neem-based pesticides can also provide good control, as can insecticidal soaps. Note: Insecticidal soaps will kill the beetles, but don't provide any ongoing protection to your plants.

Learn about 10 common garden pests and how to treat them.

 

Get Rid of Grubs

While it's the adult Japanese beetles that cause the most damage, their larval form -- grubs -- can also cause lawn problems. If your lawn has a grub infestation, treating for the grubs will kill most of them before they can emerge as adult beetles.

A number of grub-killing products are quite effective. There are also organic options including beneficial nematodes.

Learn more about stopping grubs.

Kill Japanese Beetles Quickly

The beetles release chemicals called pheromones into the air. These pheromones attract other beetles. So if you see a few of the bugs, they'll probably attract more. Get rid of Japanese beetles early, before they can invite more of their friends to feed on your plants.

Learn more of the best ways to get rid of bugs.

Avoid Japanese Beetle Traps

University research indicates that using Japanese beetle traps can actually make problems worse. The traps are intended to trap and kill the beetles in your yard. However, they use pheromones to attract the beetles to the traps. And these pheromones bring more beetles into your yard than the traps can catch.

Timing

Japanese beetles tend to be most active when temperatures are over 85 degrees Fahrenheit and the air is relatively still. Be especially watchful for new beetles coming into your yard during these conditions.

Pick the Right Plants

While Japanese beetles eat hundreds of different plants, they do tend to avoid:

  • Arborvitae
  • Boxwood
  • Dogwood
  • Firs
  • Hemlock
  • Holly
  • Junipers
  • Lilac
  • Magnolia
  • Oaks
  • Pines
  • Redbud
  • Red maple
  • Rhododendron

See the secrets to eliminating other types of garden pests.

 

Easy Lawn-Care Tips

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