Japanese Beetle Solutions

  • Japanese Beetles

Be prepared!  The Japanese Beetle have been spotted in the Midwest.

Japanese beetle larvae are typical white grubs. They live in the soil from August until June, and feed on plant roots, turf grass, and organic matter.

Japanese Beetles eat everything around them, causing a great deal of damage in a short period of time.  They chew on almost 350 different varieties of plants.  Some favorites include asparagus, fruit trees, raspberries, and grapes. They also feast on maple trees, birch trees, roses, and other varieties of trees and shrubs.

This type of beetle ruins leaves by eating the tissue between the veins. This is a type of feeding called skeletonizing. Groups of a dozen or more beetles at a time completely consume plants, devastating both flowers and fruits.

Controlling the Japanese Beetle

Traps are most effective when positioned at the perimeter of your property away from desirable plants, or when mass trapping occurs. Japanese Beetle Traps are very effective, but draw a lot of beetles in. Make sure to ready yourself with plenty of replacement bags.

Earl May’s Eight works as an efficient spray. Labeled for the use on a wide range of plants, availability includes ready-to-use sizes as well as concentrates.

Want more information? Visit our info sheet or check out our Youtube video on How to Control Japanese Beetles!


  1. Shonna August 1, 2018 at 9:24 am

    Hi John,
    Thank you for your question. Super Eight Insect Control will kill Japanese Beetles on contact and also prevent them from feeding on your plants. Remember to reapply after a rain and always follow label directions.
    Grow your own way,
    Earl May

  2. John July 27, 2018 at 2:29 pm

    Does the eight spray keep them away or just kill on contact or both ?

  3. Shonna August 16, 2017 at 11:28 am

    The beetle traps and Earl May Eight are both great ways to treat a full grown tree invaded by the Japanese Beetles.

  4. Colleen Vinsand July 16, 2017 at 11:48 am

    What is the best way to treat a full grown tree?

  5. Deanna Anderson August 3, 2016 at 4:31 pm

    Thanks for the question Jane. We are not aware of a systemic that is labeled for use on linden trees for Japanese beetles. We verified this with information recently published by the Horticultural Department at Iowa State University.

    Traps may be an option but they do run the risk of attracting more beetles into the area. However, we do know of homeowners that have been successful using several traps around the tree to protect the defoliation on their linden.

  6. Jane Hollst August 3, 2016 at 3:20 pm

    This did not answer my question about products to use for my large linden trees which have Japanese beetles on them. I had read someplace that there are systemic products available. I know imidacloprid would kill bees, etc, and I thought there were other systemics available that were not as long lived in the tree that would be better to use for blooming trees that could be applied after the tree was finished blooming. Do you know the name of these products, and do you sell them?

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