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Grubs in your lawn?

a guide for lawn care professionals and homeowners

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HOW NATURE FIGHTS GRUBS

Natural enemies kill grubs

In the soil, microscopic worms known as nematodes live and breed. Some nematodes infect and kill grubs, thereby reducing populations. You can also purchase and release nematodes that will kill grubs, if used properly.

Parasitic nematodes inside a grub.

Other natural diseases and parasites occur in the soil. If you see sick or dying grubs, as pictured here, it may be best to let nature do its work.

KNOW YOUR GRUBS

White grubs are immature scarab beetles (for example, European chafers, Japanese beetles, and Oriental beetles). Although all grubs cause similar damage, the treatment you choose should correspond to the species. Homeowners can have their grubs identified at a local Cornell Cooperative Extension (CCE) office. Lawn care professionals should learn how to identify grubs and can consult with CCE staff for training. Knowing the species helps you pinpoint effective strategies that will work in your climate.

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These pages are maintained by the New York State IPM Program, part of Cornell Cooperative Extension. All material is protected by Section 107 of the 1976 copyright law. Copyright is held by Cornell University and the New York State IPM Program.