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Question DetailsAsked on 4/26/2013

What is the best way to deal with lawn grubs?

I am in Maine and they are getting worse every year, along with the crows and skunks that are tearing up the sod to eat them.

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3 Answers


Have you tried beneficial nematodes? They are tiny predatory worms who eat the grubs and remain in the soil. There are different types available for different kinds of grubs (I just received an order to attack Japanese Beetle grubs and tick larvae). They come refrigerated and in suspended animation; when the soil temperature is warm enough (probably not yet in Maine--I'm in northern VT and will wait a week or two and take the soil temp) you mix the nematodes with water and spray on moist soil early morning or dusk. You keep that area damp (watering or rain) for a week or two and the nematodes go to work. Usual application is spring and fall for the first year.

Totally non-toxic--it's just critters doing what they do. I ordered mine from Arbico (www. arbico-organics). While it'll cost more up front than some chemical treatment, you won't have to worry about harming birds, soil microorganisms, pollinators, water, etc. Hope this helps.

Answered 7 years ago by sooty


Use a commercial grade insecticide labeled for grubs

Answered 5 years ago by kstreett


Use safe, Diatomaceous Earth! It is cheap too? Buy in bulk. Put on your cloth filter mask and dump into your fertilizer spreader. Lay it on thick. Water it in until you don't see it. You are done. Kids, pets, wildlife can play on it now.

Apply again in a week the same way. It stays in the soil and keeps working, as it is a form of natural soil. It is also known as DE.

Look it up and search for microscopic photos of DE and you will understand it better. To us it feels like talc, but it shears lawn bugs to bits. Earth worms like to forage deeper, so they are unharmed as well. You want the DE to make it into the root zone.

Do be space near ponds.

You can actually eat DE and it will kill digestive worms w/out harming You! Just don't breathe it in.

Another product is Tobacco dust. As always, use a cloth mask.

Answered 3 years ago by Cyn

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