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Have a Drugstore Beetle Problem?


The Drugstore Beetle has a brown oval shaped body with grooves running down its back. Adults can fly and are attracted to light. Adults may be first noticed near windows or on windowsills. Once a food source is located, females lay up to 75 eggs and the larvae hatch within a few weeks. Larvae transitions take months to complete, during which time the larvae are feeding on the food source.

The larvae of the Drugstore Beetle are small, c-shaped and white. They feed on stored dried foods such as cereals, grains, fruits, vegetables, cookies, spices, and chocolate and have also been found in pharmacies feeding on medicinal herbs and prescription drugs. They also eat the paper and leather bindings on books.


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The drugstore beetle is a small insect. The adult is about 2 to 3.5 mm long. It is oval-shaped and brown in color. Viewed from above, the head is not visible, so the beetle appears to be “humped.” The wing covers are lined with parallel rows of deep pits or punctures. The adult beetles can fly, and they are attracted to light.

Control Advice

Inspect dry foods and packaging before purchasing and store pet foods away from pantry. Discard infested food and vacuum food storage area thoroughly, especially in cracks and corners. Store dry food goods in airtight containers.

Active Seasons

The Drugstore Beetle can be active all year, especially in warm weather and heated buildings.

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