How Japanese beetle & emerald ash borer have spread in the US.

Discussion in 'Plant Pests, Diseases and Weeds' started by Pacnorwest, Mar 8, 2025 at 8:42 PM.

  1. Pacnorwest

    Pacnorwest Hardy Maple

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    The past few years I have had luck treating the trees and shrubs in my garden with a systemic used in the soil applied in early spring or late winter. The past two years have not seen any signs of them till last fall.

    The raccoons and birds have done a good job keeping the larvae stage of the grub out of the lawns and pastures. If you see 1-2” tiny mounds in lawn areas you have grubs.

    Milky spores is a naturally occurring bacteria and is a biological control agent used to target and kill Japanese beetle grubs during larval stage of the beetle causing a disease that spreads through the soil. It has to be injected under the grass roots every few inches to be effective.
     
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