Arborist b 480-969-8808Japanese Beetle


Japanese Beetle

Adult Japanese beetles feed on flowers and leaves of various trees and shrubs, such as linden, crabapple, birch, and rose. When the beetles find a food source, they release a scent that attracts more beetles. Females lay eggs in the soil, which hatch into grubs, a major lawn pest.


Japanese beetles eat leaf tissue between the veins, creating a skeletonized effect. They may also eat large holes in flower petals.

Treat for grubs in your lawn and you'll reduce the number of Japanese beetles (unless your neighbor doesn't control grubs, in which case beetles will invade your garden). A fungus called milky spore controls grubs but may take a few years to build up an effective concentration. Adult beetle traps may lure more beetles than you already have in your garden. Plant trees and shrubs that beetles don't like to feed on. Arborvitae, lilac, hemlock, holly, juniper, pine, red maple, red oak, rhododendron, and yew are a few plants that Japanese beetles rarely attack.

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