Q & A

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September 19, 2016 at 11:47 am #210107

Eric Vinje
Keymaster

Hi Ted –

In my opinion the best product for Japanese beetle lawn grubs is Milky Spore. However, it spreads slowly as each infected beetle larvae dies, decomposes and releases billions of new spores into the soil. Each 10 oz can treats 2,500 sq ft which is much more than you need, but I don’t think you can go wrong over-applying it!

Another option would be to top-dress the damaged area with Beneficial Nematodes. They work much faster than milky spore powder, but cover a smaller area. One pint covers approximately 300-500 square feet.

Learn more about Japanese beetles here https://www.planetnatural.com/pest-problem-solver/lawn-pests/japanese-beetle-control/.

Hope this helps!