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JAPANESE & FLEA BEETLES, & LAISSEZ-FAIRE

Japanese beetles


I grabbed the dustbuster as I walked out to the garden this morning, hoping to inaugurate a new era in Japanese beetle control, who began their summer feeding early this month. The dustbuster was ineffective, the beetles passively dropping from any leaf as soon as the nozzle came within a few inches. Even beetles caught in flagrante delicto decoupled and dropped.

This year’s approach to Japanese beetle control will be laissez-faire. Spraying a chemical insecticide like Sevin is too disruptive to the ecosystem. Most organic insecticides, such as neem oil and pyrethrum, are either of limited effectiveness or require too frequent reapplication. And anyway, the beetles attack too many different kinds of plants to make spraying feasible; I’ve got over a dozen varieties of grapes, a half dozen varieties of roses, many varieties of filberts, and a dozen hardy kiwi …

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