What Brings Flour Beetle In Bedroom?

Flour beetles are notorious pests that love humidity and grains, especially if there is a lot of grain or a lot of moisture in your home. The beetle larvae can produce moisture, even in environments that are not that humid. That makes it easier for the pests to survive in dry environments, as well. The beetles prefer eating fine flour and not whole grains.

What Brings Flour Beetle to the Bedroom? 

A flour beetle is like a spider that crawls into your pantry and takes all the flour you have. Flour beetles are a part of the beetle family called the Tribolium. It is common to find a beetle feeding on your flour in your pantry. If you discover flour beetles in your bedroom, chances are that they have been crawling around your home for some time, ending up in your bedroom.

Beetles have a life span that lasts 40 – 90 days, depending on the environment. The adult beetle lays a queen egg that hatches larvae and transforms into pupae from which the adult will ultimately emerge. While a red flour beetle has an antenna with three segmented clubs at the end, a Confused flour beetle has antennas with four segmented clubs.

Flour beetle with larvae
Flour beetle with larvae

How to Control Flour Beetle Infestation in Your Home

It is quite distressing to find out that all that flour you have in your cupboards is filled with Flour Beetles! These annoying pests are becoming more prevalent in homes, supermarkets, and food packing plants. They are a common problem in food processing plants and commercial food packaging facilities. 

Some people often buy flour in grocery stores and then put it in various rooms in their homes, including the bedroom. Flour Beetles will attach to food in packages and then spread to other food items in your home. If you’re grappling with flour beetle manifestation, you must use the recommended pest control products.

Flour Beetles can easily cause thousands of dollars of food damage. Therefore, you must act quickly to prevent any significant damage to your food and the ugly incident of flour beetles crawling around in your bedroom. Here are the key steps to follow to manage flour beetles:


You need to ensure that you are dealing with Flour Beetles and not other insects. Misidentification of Flour Beetles may result in the application of the wrong treatment plan, which will cost you time and money. Be sure to look for the signs that will help you identify Flour Beetles. Essentially, Flour Beetles come in two main types: the Red Flour Beetle and the Confused Flour Beetle.

These two Flour Beetle species look identical, and that is why one of them is called the Confused Flour Beetle, even if they look like red flour beetles. You can distinguish between these two types of Flour Beetles by looking at their antennae with a magnifying glass.

Red flour beetles are exceptional flyers; they fly really well compared to their confused counterparts. 

Flour beetles in rice
Flour beetles in rice


Immediately after you realize that you have Flour Beetles, you need to know which areas of your home are infested. Since Flour Beetles are particularly active when you buy pantry foods, you must start an inspection in the pantry. You will want to inspect food packages that contain grains, flour, cereals, pasta, spices, herbs, and pet food.

You need to find the food that has caused the beetle infestation in the first place. Check every place where food is stored. Search every packaging until you find the adult Flour Beetles or the larvae crawling inside the food products. 

When searching for Flour Beetles, look for any nooks and crevices in your pantry that might be hiding places for Flour Beetles. When you find the adult or larvae of a Flour Beetle, you can apply the treatment.


If you see evidence of Flour Beetles in your home, it is time to start eliminating them. Remember to read the label for any products you are using and follow the instructions on the package. Remember to wear personal protective equipment. Before getting rid of Flour Beetle infestations, you must empty your pantry and put away all your food products. 

You will also need to do a thorough vacuuming and a thorough cleaning of your pantry. Spray Pyrid Aerosol and Flex 10-10 to kill the adult Flour Beetles and stop them from developing eggs and larvae. If you have been treating these areas, you should put out Pro-Pest Bug and Moth Traps to capture any Beetles that may remain in your pantry after you have finished treating the area.


After you have gotten rid of the infestation of Flour Beetles, you should continue to perform preventative measures to prevent them from returning. Prevent these pests from infesting your food items in the first place by sealing all food in hard plastic bags or containers.

Below are the pest control measures that we recommend taking:

  • Check the food items you buy before you buy them, like looking for holes or rips in the food packaging that indicate that the item has already been infested.
  • Start transferring the food items from the food packaging to air-tight containers (if there is one).
  • It is better to buy only what you need for a week rather than buying a large amount of food. This helps you avoid having food stored for a long time (months or even years), thereby increasing the chances of infestation.
  • Continue to apply insecticides like Flex 10-10 every 30 days and use traps like Pro-Pest Pantry Moth and Beetle Traps regularly to monitor for pests every three months.

Final Thoughts

We recommend that you completely clean and empty your pantry, apply pesticides such as Pyrid Aerosol and Flex 10-10 Insecticide, and use pest traps to kill or prevent Flour Beetle infestations. Also, get rid of any food crumbs that may have been stored in your pantry by cleaning your pantry regularly, putting away food that has been cooked or packaged, and by storing food in sealed plastic containers.

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