Confused Flour Beetle


Flat, shiny elongated beetle


Reddish-brown in color.


Measures about 1/8 inch long


Dried stored foods, grains, and even chocolate.

Interesting Facts

Confused flour beetles are the most abundant and harmful insect pest of flour mills in the U.S. They cause significant damage to commercial grain products as well.

How does Batzner get rid of confused flour beetles?

Steps in controlling flour beetles in a home:

  • The first step is finding and discarding infested foods in outdoor trash.
  • Sanitation is very important to gain control. Clean areas where the infestation was found, including shelves, cabinets, drawers, built-in cutting boards, baseboards, cracks and crevices. Use a vacuum and soap and water to clean these areas. Properly dispose of the vacuum bag immediately after use.
  • Inspect any dried, stored food products before bringing them into your home to ensure they are not damaged or that packaging is not torn.
  • Store dried foods in an air-tight glass, metal, or thick plastic containers. Paper, cardboard, and thin plastic bags will not prevent infestations. If pests are found in those products, then the infestation will be contained and not spread to other foods. Alternately, store susceptible products in a refrigerator or freezer.
  • Clean old containers before filling them with fresh food.
  • Rotate products, using older materials first. A good rule, for any given product, is that the first package you put on the shelf should be the first one you used.
  • Avoid keeping excess stocks of susceptible food items. Items that are stored for long periods of time are more likely to become infested.
  • Regularly check for and dispose of expired products, even if the product still looks good. It may be harboring a growing infestation.

If the infestation persists, it means at least one infested food source remains or additional spilled food is still present. If you are having trouble finding the source, give us a call. Our experienced service professionals have the training to seek out the root of the infestation.

What steps can I take to control or prevent confused flour beetles myself?

Prevention is the most important step in confused flour beetle control.

  • Keep them out. Inspect all products and packages that come into your home or facility for evidence of pests. Commercially, reject pallets that have evidence of a pest infestation.
  • Don’t let them breed inside. Implement and follow food or stock rotation (first in, first out).
  • Keep it clean. Clean up spilled food or product daily.
  • Then clean some more. Schedule regular deep cleaning that targets hard-to-reach locations where flour, food debris, and other food material may build up, such as in food pantries, above drop ceilings, on vent fans, in floor cracks, etc. Seal as many of these areas as possible to prevent future build up.
  • Don’t just rely on visual inspections. If you have a past history of flour beetles, we recommend a pheromone trapping program.

Get a free estimate from Batzner

We just need a little bit more information from you, and you will be one step closer to being pest free.

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Other Types of Beetles

Asian lady beetle

Commonly mistaken for the ladybug; native of eastern Asia

Learn More