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Extension > Yard and Garden News > Watch out for food infesting beetles

Thursday, November 30, 2017

Watch out for food infesting beetles

Jeffrey Hahn, Extension Entomologist

This is a time of year when beetles, like flour beetles, sawtoothed grain beetles, drugstore beetles, and
Cigarette beetles.  Photo: Jeff Hahn, U of M Extension
cigarette beetles, can infest a wide variety of dried food products, including (but not limited to) flour and other grain-based products, dried fruits, nuts, spices, such as dried red pepper, as well as dry pet food. These beetles are small, 1/10th - 1/8th inch long, and brown. They can range in shape from slender to stout and oval.

When these beetles are found in a home, the best control is sanitation. First find out what
Sawtoothed grain beetles. Photo: Jeff Hahn, U of M Extension
they are infesting. Because they are able to feed on many items, be sure to make a thorough inspection. Start in the kitchen and check all food items for their presence. However, don’t forget about any susceptible items that may be stored in other areas on your home, e.g. pet food. Throw out any infested food material that you find. Keep in mind that there can be more than one infestation source so don’t stop looking after you find the first one.

For more information, see Insect pest of stored foods.

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