How to Get Rid of Weevils (Flour Bugs)

Staff Reviewed

Why choose wikiHow?
When you see the green checkmark on a wikiHow article, you know that the article has received careful review. In this case, the article went through multiple rounds of research, revisions, and review by our trained team of writers and editors.

How to Get Rid of Weevils (Flour Bugs)

Two Methods:

If you've opened your flour and found it crawling with small pests, you probably have weevils. Weevils are actually small, reddish-brown beetles that may be able to fly. Since weevils can lay a few eggs a day for months, you might be dealing with flour weevils for a while. Completely clean your pantry and store your flour in hard, airtight containers. It may take some time before you've removed all of the weevil eggs, but improving your pantry storage will stop weevils in their tracks.


Cleaning and Improving Your Pantry

  1. Find the source of the weevils.Although pantry pests can fly, they usually like to stay near their food source. If you've noticed small reddish brown beetles, weevils, in your flour, they may also be in other foods in your pantry. You should also check for weevils near your pet's food dishes since this may be their source of food. Check for weevils in:
    • Cereals and grains (oats, rice, quinoa, bran).
    • Crackers.
    • Spices and herbs .
    • Dried pasta.
    • Dried fruit.
    • Chocolate, candy, and nuts.
    • Dried peas or beans.
  2. Discard any food that has weevils.Although you won't be able to see the eggs in pantry items, you will be able to see adult weevils. Check your flour and pantry products for them and if you find weevils, throw away the food. If you don't see weevils, you can store and use the flour or food.
    • You shouldn't eat any food that could contain live weevils. If you've accidentally baked with flour containing weevils, you can eat the food because the weevils are dead.
  3. Vacuum and wash your pantry.Remove the food from your pantry shelves and use a vacuum attachment to suck up any loose bits of food or flour. Take a wash cloth dipped in soapy water and wash all of the shelves and anywhere that there may be spilled food. If you've found weevils in other rooms of your house, vacuum them up.
    • Immediately empty the vacuum canister in your dumpster outside so the weevils don't stay in your kitchen trashcan.
    • You won't need to use commercial insecticides for weevils or pantry moths if you clean your pantry and remove their food source.
  4. Wipe your pantry shelves with white vinegar or eucalyptus oil.Once you've thoroughly cleaned your pantry shelves, wipe them with a liquid that weevils dislike. You can wipe a mixture of half water and half white vinegar or use eucalyptus oil. Just dilute the eucalyptus oil with a little water and spray it onto the shelves.
    • You can also try neem, tee tree, or pine needle oils to prevent the weevils from getting into your pantry.
  5. Place all of your foods in airtight, hard containers.Since weevils can eat through cardboard boxes or bags, you'll need to store your pantry foods in hard plastic containers or jars that are air-tight. If you've bought bakery mixes (like cake or muffin mixes), check these for weevils and transfer them to containers. You can color code or label your containers to make them easy to use.
    • You may want to cut out any cooking instructions from cardboard packages for foods and store them in an organizer in your kitchen.

Preventing Weevil Infestations

  1. Buy smaller amounts of flour.If you don't use very much flour, consider buying small amounts at a time. If you leave flour sitting around for a long period of time, weevils may be encouraged to lay their eggs in it. The faster you use your flour, the fresher it is, and the fewer the chances for infestation.
  2. Freeze the flour.As soon as you bring flour home, seal it inside a freezer bag and put it in the freezer for at least 1 week. This will kill any eggs or weevils that are already in the flour. You can then take the flour out and store it in your pantry in an airtight, hard container or just keep it in the freezer until you need it.
  3. Place a fresh bay leaf in the flour.Get out fresh bay leaves and put one in each container or bag of stored flour. Some people believe bay leaves can prevent weevil infestations. You'll need to replace the bay leaves every few months or when you can no longer smell them.
    • You can find fresh bay leaves in the produce department near the other fresh herbs.
  4. Use pheromone traps.You can buy small packages of weevil traps that use pheromones to attract the weevils and pantry moths. The traps have a sticky space that trap the pantry pests. Place a few of these around your pantry and change them once they're full.
    • If you are overwhelmed by a huge infestation of weevils (for example, thousands are crawling all over your floors and walls), you may want to contact a pest control professional.
  5. Check your pantry for weevils on a regular basis.You should check your pantry every month or two for weevils. This is especially important because adult weevils can live at least a year. Remember to thoroughly clean out hard-to-reach parts of your pantry where weevils might start thriving.
    • This is a good chance to wash down the pantry shelves again. Keeping a clean pantry will prevent flour weevils from coming back.

Community Q&A

  • Question
    Where do weevils come from?
    Community Answer
    Weevils typically hatch out of eggs that already have been laid in the foods you buy, such as rice or flour.
  • Question
    I don't have any food at all, but I still have weevils. What do I do?
    Community Answer
    Weevils can still be seen for a time after ridding the area of anything contaminated. Continue to clean the area once in a while until the infestation is gone.
  • Question
    If I am using a food saver, how long will the flour last?
    wikiHow Contributor
    Community Answer
    A food saver will only prevent insects from entering the flour. It will not deter any insects that might already be in the flour. Unfortunately, there are eggs in most grain items, so the food saver will not help with them--you freeze the flour first for 96 hours and then package it with the food saver.
  • Question
    How do I get rid of weevils that are already in the food?
    wikiHow Contributor
    Community Answer
    Just put your flour through a sifter--the weevils are too big to go through the holes. Then freeze as outlined above to destroy any eggs and place a bay leaf in the container of the newly sifted flour. Don't be concerned that these have contaminated your flour and that the flour must be discarded. There is already a certain amount of eggs when the flour is new and most all grain items will contain a minute amount of infestation--and still meet FDA standards. Our pioneer ancestors dealt with this all the time--they just accepted some addition protein.
  • Question
    Do weevils hatch into flying insects like small moths or is this likely to be something else?
    wikiHow Contributor
    Community Answer
    Yes, some kinds of weevils are flying insects. No, they don't look like moths. They're actually a type of beetle. You're more likely dealing with pantry moths, which are a similar nuisance to weevils. When you see one, make sure to find and kill as many as you can; they are very hard to get rid of once they multiply.
  • Question
    What do the tiny black bugs look like?
    Rosy hary
    Community Answer
    Their bodies are shaped like a cockroach, but they are similar in size to a small ant.
  • Question
    I sealed the crevices with sealer. I checked this morning and found a few, but not a lot. So what can I do next?
    Community Answer
    Clean the area as instructed above until you do not see them anymore. You can also try 'pantry pest' traps that use a food-based goo to trap the weevils.
  • Question
    I had an item filled with wheat that I stored in my closet, it got weevils and although I have removed it I still find them. How can I get them out of my closet, what pesticide would work?
    wikiHow Contributor
    Community Answer
    Clean out the whole area and throw away any other food that is open and attracting the weevils. Wash down the cupboard sides, base and ceiling areas with a strong cleaner or disinfectant wash. You could even make a light mixture of Dawn and Clorox. Then get some eucalyptus oil and mix a little with warm water and wipe down all areas again. Reline areas if desired or just leave bare. Regular cleaning of cupboards and freezing all grain products will help too.
  • Question
    I saw live weevils in the bottom of my grocery bag. I checked all the boxed and bagged items as I unloaded, and put everything into the freezer. Will this kill the live bugs I may have missed?
    Community Answer
    Freezing everything should kill the bugs. Make sure to clean everything thoroughly after taking it out of the freezer, to get rid of the bugs that died.
  • Question
    Will these weevils harm fishing worms
    wikiHow Contributor
    Community Answer
Unanswered Questions
  • I found an infestation in a cotton made silver cover. Is that common?
Ask a Question
200 characters left
Include your email address to get a message when this question is answered.

Quick Summary

To get rid of weevils, start by removing all food items from your pantry that have been invested with them and discard the items immediately. Transfer any uninfested foods to airtight containers with hard shells to prevent weevils from getting into them in the future. Clean and vacuum out your pantry thoroughly to remove any lingering pests, then wipe it down with vinegar before moving the food back in!

Did this summary help you?
  • Do not throw contaminated food away in your kitchen. Take it to the outside dumpster to prevent the weevils from re-infesting your pantry.
  • If you've just purchased the flour that you found weevils in, consider sealing the bag in an airtight container and returning it to the store where you bought it.
  • If you have contact paper lining your cupboards, remove it before you clean the cupboards since weevils can hide underneath it.

Things You'll Need

  • Hard, airtight containers
  • Vacuum
  • Cloth
  • Dish soap
  • Eucalyptus oil or vinegar
  • Plastic freezer bags
  • Bay leaves

Related wikiHows

Sources and Citations

Made Recently

Did you try these steps?
Upload a picture for other readers to see.
Upload error
Awesome picture! Tell us more about it?

Article Info

Featured Article

Categories: |

In other languages:

Español: , Deutsch: , Português: , Italiano: , Русский: , Français: , 中文: , Nederlands: , العربية: , ไทย: , Bahasa Indonesia: , Tiếng Việt: 

Thanks to all authors for creating a page that has been read 1,543,795 times.
Did this article help you?
Reviewed By:
wikiHow Staff Editor

A wikiHow Staff Editor reviewed this article to make sure it's clear and accurate.

Views: 1,543,795
of readers found this articlehelpful.
1 votes - 100%
Click a star to add your vote
100% of people told us that this article helped them.

Susan Rutter

Jul 28, 2019

"It helped me in case of these types of insects. I would have liked to see photos, as I have never had bugs in myhome. I am doing investigative work to find out what type of bugs found in Basmati rice. I threw it in my garbage, unopened. They are medium brown and fly."
Rated this article:

C. H.

Aug 11, 2019

"The information on this page was very helpful. I noticed the bugs a week ago in my bag of plastic spoons in mypantry. So I stated checking everything and found tons of the little pesky bugs. I tossed almost everything in the pantry that had bugs in it. I vacuum and wiped down the pantry thinking I got them all. I had no clue about the basil or other natural ingredients I could have used. "


Aug 7, 2019

"I didn't realize that the eggs were already in the flour. I had it in my mind it was my bad housekeeping, I'mafraid I get a bit paranoid about weevils and check everything. The freezing tip was also useful. I do already use storage containers. Thank you."

Terri Jehmlich

Aug 5, 2019

"I was alarmed to find out that I've been eating generations of weevils all along. Aside from the "ick"factor, I feel better knowing that I'm not alone. Also, I very much appreciate the freezing the flour tip, as well as the bay leaf tip! Wish me luck!"

Nana Riojas

Jul 24, 2019

"I always wondered if weevils sometimes were present on products that I had just purchased, so this confirmed it.The information on freezing the flour was very helpful and also how to clean and preventing reinfestation. Thank you. Great information."

Esteban Moses

Jun 26, 2019

"I got bugs in 4 to 5 days in packaged donuts. Even though I put the donuts in a large baggie as soon as I gothome. This tells me the eggs were in the donuts at the store and hatched later. I will be freezing the donuts for 4 days to kill the eggs."


Jul 22, 2019

"Very useful finding out how the weevils got there in the first place, that the eggs were probably brought in in abatch of flour. Very handy knowing about freezing the flour before using and storing in airtight pots. Very useful article altogether!"

Bev Hughes

Aug 18, 2019

"I've found most of the advice very helpful, as I am currently getting rid of an infestation. I've experienced flourmites before, but never an infestation! I now know how to hopefully prevent or at least minimize any further infestations, thank you."


Nov 22, 2019

"This article helped me because I really didn't know anything about weevils and how to get rid of them. Now I knowthe name of the bug where they came from and how to get rid of them. I also know how to prevent them. Thank you for the information."

Helen Maugham

Jan 20, 2019

"I get the little weevils in flour that has been stored, even in containers! I will in future freeze the flour, orjust throw it away once it gets more than a couple of weeks old. I'm glad to know its not just me that has them. Thank you."

Linda Henderson

Oct 3, 2019

"I found weevils in my pantry and after cleaning up the mess, I researched ways to prevent this naturally, withoutuse of chemicals or pesticides. I was so pleased to find that eucalyptus oil or tea tree oil can keep the little pests away."

Helen Davies

Aug 30, 2019

"I had already removed all the flour and washed the containers and shelves, but I was glad to know that the freezerwill kill all eggs, pupa and adults. I will also keep bay leaves in the containers. My containers were no longer airtight."

Bonnie Teague

Jul 27, 2019

"Loved finding out what to use to get rid of bugs. Hated finding out that the FDA permits a certain % of eggs inour food! I always thought the pioneers were a sturdy bunch of people, now I know it! Thanks really helpful article."

Lynn Weisen

Jun 11, 2019

"Excellent article. All the questions I had were answered. The answers were succinct and to the point. I wish I hadcame here first and saved myself from reading 12 other webpages that did not provide the information I needed."

David Alcaraz

Apr 23, 2019

"A lot of information I learned. I didn't know what kind of a beetle I had. Knowing it came from the flour, Ichecked the flour, and yes, there was the infestation. Now I'm cleaning very well, thanks for all the information."

Kim Lunnen

Mar 10, 2019

"I just found a major weevil problem in my unopened bags of flour. I chucked all the remaining bags, will be goingthrough and cleaning out the pantry and cupboards. Thanks for the tips!"

Yecchiel Smith

Feb 5, 2019

"What helped the most was to find out that my dry groceries were not beyond saving. Bay leaves, wow, got that.Eucalyptus/lemon oil, tea tree oil, got that. Thank you so much!"

Therese Preston

Mar 6, 2019

"Sift flour instead of throwing it out. Use of dry bay leaves for further protection. Final wipe-out with eucalyptusoil. Thank you, very much appreciated."


Oct 27, 2019

"The essential oils that can be used for the removal of these unsightly bugs. Also, recommending the freezing offlour for 96 hours was a great help."

Heather G. Honour

Oct 11, 2019

"I'm a farmer's daughter so I'm not too freaked out but will be freezing all my flour for several days from now on.Don`t need extra protein! "

Jean McClintock

Jan 24, 2019

"I had flour beetles in my flour. I will follow your directions and put it in the freezer. I did have the flour inan aluminum canister. "

Lisa Gonzales

Jul 27, 2019

"Thanks for the information. I didn't know where these bugs were coming from. All your information helped to get ridof these pests."
Rated this article:

Lynn Yocum

Oct 9, 2019

"I was very happy to read the tip about freezing flour for 96 hours, using tea tree oil, and the eucalyptus oil. Nochemicals!"

Diana DeGendice

Aug 8, 2019

"It identified washing the flour, how they multiply and can even get into packaging. Good info on how to get rid ofthem."
Rated this article:

Shonna Jones

Jul 26, 2019

"Washing everything down with bleach and vinegar and throwing away infected foods and putting them in the dumpster."

Bernice Williams

Aug 11, 2019

"I have been having this problem for a while. The information I received from the website was very helpful."

Ralph Crouch

Jan 10, 2019

"Many thanks for your advice. We suddenly discovered weevils and now we will carry out your suggestions."

EvaLee Ulrich

Sep 26, 2019

"This information is very helpful on how to get rid of the pest and how to prevent eggs from hatching."
Rated this article:

Geri Kelly

Mar 8, 2019

"Fantastic, answered all my questions and some good tips. Love the presentation - very professional!"

Sue Jarvis

Aug 16, 2019

"We put our flour in a decorative ceramic pot.

Video: How to Get Rid of Weevils

How to Get Rid of Weevils (Flour Bugs)
How to Get Rid of Weevils (Flour Bugs) images

2019 year
2019 year - How to Get Rid of Weevils (Flour Bugs) pictures

How to Get Rid of Weevils (Flour Bugs) forecast
How to Get Rid of Weevils (Flour Bugs) forecast photo

How to Get Rid of Weevils (Flour Bugs) foto
How to Get Rid of Weevils (Flour Bugs) foto

How to Get Rid of Weevils (Flour Bugs) How to Get Rid of Weevils (Flour Bugs) new picture
How to Get Rid of Weevils (Flour Bugs) new images

images How to Get Rid of Weevils (Flour Bugs)
picture How to Get Rid of Weevils (Flour Bugs)

Watch How to Get Rid of Weevils (Flour Bugs) video
Watch How to Get Rid of Weevils (Flour Bugs) video

Discussion on this topic: How to Get Rid of Weevils (Flour , how-to-get-rid-of-weevils-flour/
Forum on this topic: How to Get Rid of Weevils (Flour , how-to-get-rid-of-weevils-flour/ , how-to-get-rid-of-weevils-flour/

Related News

Cornbread and Apple Dressing
9 Reasons Your Arms Arent Changing, No Matter How Much You Work Out
Tomato-Basil Shrimp Stew
3 Sites forOnline TV and Movies
How Can I Stop Leg Cramps
The One Product You Need for InstantVolume
How to Make Mayonnaise With Olive Oil
What Doctors Can Really Do to Help You Lose Weight
How to Play Galaga Like a Pro
Daytime and Party-Ready Brown Eye Makeup Tutorial
7 Storage Superstars You Already Own
LGBTQ Celebrities Who Were Told That Coming Out Would Ruin TheirCareers

Date: 17.12.2018, 21:14 / Views: 51461