Source: ARS

ARS entomologist Eric Riddick and colleagues in Stoneville, Miss., in collaboration with ARS natural product chemist Kamal Chauhan at Beltsville, Md., have tested compounds in catnip oil that naturally repel the multicolored Asian lady beetles, causing them to fly off, stop crawling, move back or turn away.

In studies at the ARS Biological Control of Pests Research Unit in Stoneville, 95 percent of adult male and female lady beetles altered their course upon encountering filter paper impregnated with the highest of three doses of the catnip compound nepetalactone. The researchers chose nepetalactone because it had previously been shown to repel some species of cockroaches, flies, termites and mosquitoes.

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