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Are residual insecticides usually more effective in controlling cockroaches than surface sprays?

April 26, 2017cockroaches effective insecticides residual Sprays usually

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Are residual insecticides usually more effective in controlling cockroaches than surface sprays?

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In general, over the counter aerosol sprays are convenient to use, but most do not have residual activity that controls the insect after the initial application. Crack and crevice treatments using residual insecticides and baits together are usually more effective in controlling cockroaches.