The Q&A Archives: Controlling Japanese Beetle Grubs

Question: How do I eradicate Japanese beetle grubs from my garden before they damage my beds? David McBride Mechanicsburg, PA

Answer: Japanese beetle grubs are best controlled by spraying beneficial nematodes on the lawn and garden area. These microscopic worm-like creatures attack only the grubs in the soil and not plants, animals or humans. Spray them in spring when the temerpatures are above 55F and you should see a difference this summer. You can buy the beneficial nematodes from, Gardeners Supply co, 128 Intervale Rd. Burlington, VT 05401 800-863-1700

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