The Truth About Rice Weevils: Are They Harmful?

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Rice weevils are a common pest known to infest stored grains, seeds, and grain products.

Measuring about 1/8 inch long, these reddish-brown insects have distinct snouts and markings on their wing covers, making them easily identifiable.

While their presence may be worrisome, it’s important to understand the potential harm they can cause.

Although rice weevils are primarily considered a nuisance, their infestation can result in significant damage to food supplies.

They lay their eggs in grains, and as the larvae grow, they consume the grain from the inside.

As the infestation grows, the quality of the grain diminishes, leading to economic losses in the agricultural and food industries.

There are several ways to manage rice weevil infestations, such as using pesticides or employing natural control methods.

Knowing the extent of the harm these pests can cause helps in making informed decisions on suitable prevention and control measures.

Overview of Rice Weevils

Identification

Rice weevils are small insects found commonly in stored grain products. Adults are approximately 1/8 inch long and have a reddish-brown to black color.

They are distinguishable by their distinct snout and four light reddish or yellowish spots found on their wing covers.

Life Cycle

  • Eggs are laid inside grain kernels by female weevils.
  • Larvae emerge within the kernel and feed on it.
  • The pupation stage occurs inside the kernel.
  • Adult weevils break free of the kernel and continue the cycle.

Differences between Rice Weevils and Other Weevils

A few notable weevils are the rice weevil, granary weevil, and maize weevil. They have minor differences, as shown below:

FeatureRice WeevilGranary WeevilMaize Weevil
Size1/8 inch (2-3 mm)3/16 inch (4.8 mm)Similar to Rice Weevil
ColorReddish-brown to black with 4 reddish-yellowish spotsBlack-brown or red-brownSimilar to Rice Weevil
ThoraxRound or irregularly shaped pitsLongitudinal puncturesSimilar to Rice Weevil
Ability to FlyYesNoYes

Rice weevils can cause damage to stored grains, but they usually do not harm humans or pets.

Proper storage techniques can help prevent infestations from these pests.

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Are Rice Weevils Harmful?

Impact on Agriculture

  • Rice weevils are an important pest of stored grain crops worldwide.
  • They can cause significant damage to agricultural products, harming farmers’ livelihoods.

For example:

Pests Destroying Your Garden? Learn the secrets to eliminating pests in your yard or garden in the most earth friendly way possible.

Effects on Stored Grains and Pantry Items

  • Infestations of rice weevils can lead to losses in stored grains and pantry items.
  • Their reproduction cycle is quick: in warm weather, they can complete their life stages in just 26 days.

Pros and cons of rice weevils:

Pros

  • None: they are harmful pests with no known benefits.

Cons

  • They cause damage to stored grains.
  • They can infest pantry items and spread to other food storage areas.

Comparison table of rice weevils, granary weevils, and maize weevils:

Weevil SpeciesHost CropsFlying AbilityAttraction to Light
Rice WeevilRice, wheat, cornYesYes
Granary WeevilWheat, rice, cornNoNo
Maize WeevilCorn, rice, wheatYesYes

Characteristics of rice weevils:

  • Adults are 1/8″ long.
  • They have a distinct snout.
  • Dull reddish-brown color with 4 faint reddish-yellow marks on wing covers.
  • Attracted to light.
  • Can fly.
  • Larvae are legless and creamy-white.

Remember, rice weevils are harmful pests that can cause damage to both agriculture and stored grains in your pantry.

Be sure to take preventive measures and address any infestations promptly to minimize their impact.

How to Detect and Control Rice Weevil Infestations

Rice weevils are small pests that can infest stored grains and become pantry pests.

They’re approximately 1/8 inch long and have a distinct snout. Detecting their presence can be done by closely examining your stored grains for signs of damage or adult weevils.

Methods of Control

There are several ways to control and get rid of rice weevil infestations:

  • Heat treatment: Placing infested grains in an oven at 140°F for 15 minutes or a microwave on high for 5 minutes can kill the weevils.
  • Freezing: Storing grains in the freezer at 0°F for at least four days can also be effective.
  • Clean and vacuum: Regularly cleaning your pantry and vacuuming shelves can help remove any stray weevils.
  • Airtight containers: Storing grains in airtight containers can prevent weevils from infesting them.

Pros and Cons of Control Methods

MethodProsCons
Heat treatmentQuick and effectiveMay alter the texture of grains
FreezingEffective and safeRequires significant freezer space
Cleaning/vacuumMaintains a clean pantry environmentTime-consuming, not a guarantee
Airtight containersPrevents infestationsInitial investment in containers

Key Points

  • Rice weevils can infest stored grains and become pantry pests.
  • Detection involves examining grains for damage or adult weevils.
  • Control methods include heat, freezing, cleaning, and airtight containers.
  • Each control method has its pros and cons, making it crucial to choose the most suitable approach for your situation.

Managing rice weevil infestations is essential to protect your pantry and stored grains.

Regular inspections and preventative measures like airtight containers can go a long way in avoiding these pesky pests.

Preventing Future Infestations

Preventing rice weevil infestations involves proper storage and cleanliness. Let’s discuss some steps to help keep these pests at bay.

Store rice: Always store rice in tightly sealed containers. Glass or thick plastic containers are ideal for preventing weevils from reaching your rice1.

Packaging: When purchasing rice, look for quality packaging that is not damaged. Damaged packaging may allow weevils to access the rice2.

Cleaning: Regularly clean pantry shelves to remove any residue or hidden insects3. This discourages weevil infestations.

Bay leaves: Adding a few bay leaves to your rice container4 may act as a natural repellent. Weevils are said to dislike the aroma of bay leaves.

Here is a comparison table to highlight the differences between various prevention methods:

Prevention MethodProsCons
Sealed containersKeeps rice weevil-freeMay need to purchase containers
Quality packagingEnsures rice is free from weevilsLimited control over packaging
Cleaning shelvesMaintains a clean environment for storageRequires regular effort
Bay leavesNatural repellentEffectiveness may vary

Consider following these simple steps to help protect your rice from weevil infestations and maintain a clean pantry environment.

Additional Information

Rice weevils (Sitophilus oryzae) are small insects with:

  • A distinct snout
  • Dull reddish-brown color
  • Four faint reddish to yellowish marks on their wings
  • The ability to fly and be attracted to light1

These pests belong to the Curculionidae family and are known to infest various grains, seeds, and beans.

They’re cousins to the maize weevil (Sitophilus zeamais) and granary weevil (Sitophilus granarius)4.

Adult rice weevils are equipped with strong mandibles that allow them to bore into seeds, cereals, and nuts1.

Female weevils lay their eggs inside these food sources, and as larvae hatch, they feed and develop within the kernels5.

Here are some key differences between rice weevils and their relatives:

FeatureRice WeevilMaize WeevilGranary Weevil
Size1/8 inchSimilar to rice weevilSlightly larger (3/16 inch)
WingsPresentPresentAbsent
SnoutDistinctDistinctDistinct
ColorReddish-brownSimilar to rice weevilBlack-brown, occasionally red-brown2
Flying abilityYesYesNo

Rice weevils are not known to transmit diseases, but their infestation can cause significant product damage and loss in the food processing industry.

It’s essential to maintain proper storage conditions to prevent infestations. Some precautionary measures include:

  • Washing and drying rice and other grains before storage
  • Storing food items in airtight containers
  • Regularly cleaning storage areas
  • Disposing of infested materials

In case of a rice weevil infestation, you can:

  • Freeze the infested items for at least 4 days3
  • Boil the grains to kill the weevils and their eggs
  • Throw away heavily infested products to prevent the spread

Rice weevils could invade garden soil, pet food, or other food sources, so it’s crucial to monitor these areas and act promptly in case of an infestation1.

Conclusion

Rice weevils are small beetles that infest stored grains, such as rice, wheat, corn, and oats. They are not harmful to humans or animals, but they can cause significant economic losses and reduce the quality of food.

Rice weevils can be identified by their reddish-brown color, elongated snout, and four light spots on their wing covers. They can also fly and produce a squeaking sound when disturbed.

Rice weevils can be prevented by using sealed containers, inspecting grains before purchase, and freezing or heating infested grains.

Rice weevils are not easy to eradicate, but they can be controlled by using traps, insecticides, or biological agents.

Rice weevils are one of the most common and widespread pests of stored grains, and require constant vigilance and management.

Footnotes

  1. https://extension.umd.edu/resource/rice-and-granary-weevils 2 3 4

  2. https://ipmworld.umn.edu/heinrichs 2

  3. https://extension.entm.purdue.edu/publications/E-237/E-237.html 2

  4. https://bioresources.cnr.ncsu.edu/resources/potential-insecticidal-activity-of-four-essential-oils-against-the-rice-weevil-sitophilus-oryzae-l-coleoptera-curculionidae/ 2

  5. Rice Weevil | Oklahoma State University – OSU Extension 2

Reader Emails

Over the years, our website, whatsthatbug.com has received hundreds of letters and some interesting images asking us about rice weevils. Scroll down to have a look at some of them.

Letter 1 – Grain Weevil

tiny black bugs
Fri, Jan 2, 2009 at 10:43 PM
These bugs recently appeared in a house that we have been living in for the past 11 months. We have seen them in the washer and dryer room and our bathroom. They are mostly seen crawling on walls.

We use a quarterly pest control service and the last time they came they sprayed in the attic. I am calling them to come back for a “call back” but I was hoping to know what they are sooner.
Thanks, bugged out in Texas
Houston, TX

Grain Weevil
Grain Weevil

Dear Bugged Out in Texas,
This is a weevil, possibly a grain weevil.  Is there stored pet food nearby?

Hi Daniel,
Thanks for the quick response.  The pest control (Truly Nolen) is here and you “nailed it”!  It is a weevil.  He showed us a book with insects and to be exact it is a rice weevil.  

They were infested in a bag of bird seed that we have in a cabinet in our dining room.  The bag contains milo, millet, cracked corn and sunflower seeds.  The corn is what it looks like it was after. 

The strange thing is that we have had the plastic bag of seed since the summer and never noticed them until we came back from my grandparents house in Oklahoma. 

We brought back a back of nuts and had them in the same cabinet.  Two days later we noticed the bugs.  Not sure if that is it but we can draw a pretty good conclusion that is were they came from.

WE can’t thank you enough for helping identify these pesky things!  I’ve included a link that shows what they look like in our bird seed.
Have a Happy New Year!
John and Melissa Roschal

Grain Weevil
Grain Weevil

Letter 2 – Grain Weevils

Is this a springtail?
Location: Baltimore, MD
January 2, 2011 8:30 pm
I keep finding a bunch of seemingly dead bugs just inside my basement door this winter. They are black and tiny –initially I thought it was mouse poop until I got very close.

Tonight, I was sweeping them up again, and realized some of them were NOT dead. They look a lot like springtails, but the live ones I saw did not jump, and do not appear to have round heads like in the picture on your site.

We are trying to sell the house, so any info is much appreciated!
Signature: Kevin in Baltimore

Grain Weevils

Hi Kevin,
You have Grain Weevils, not Springtails.  You may have some stored bird seed or pet food, or possibly a bag of rice in the vicinity that has been infested.

Letter 3 – Grain Weevil

What is this bug?
Location: Salt Lake City, Utah
January 17, 2011 3:06 am
Hi, I found a few hundred in my basement fairly near each other. They are small about 3-8 millimeters each, under a loop they have a rounded body, but the curious thing is the ”tube” coming from the head.

They also have wings. Any help on what it is and how to prevent more from appearing besides cleaning very frequently. Thanks for any help.
Signature: Outrunner

Grain Weevil

Dear Outrunner,
You have an infestation of Grain Weevils.  You should check stored grain products in your basement, like bargain quantities of bird seed, pet food or rice to track down the source of the infestation.

Letter 4 – Grain Weevil

Bug found in apartment.
Location: Toronto, Ontario
January 24, 2012 4:44 pm
My girlfriend and I moved in to our apartment in east york ontario 3 months ago. Immediately we started noticing ants and after about 2 months started noticing few of these little guys.

To me it looks like a weevil but I’d like to be sure. Also, do they bite?
Signature: Thanks, Toothbrush

Weevil

dear Toothbrush,
This is a Weevil and they do not bite.  They do infest stored grain products.  Try checking the rice in the pantry and we frequently get responses that they have infested stored bird seed.

Letter 5 – Grain Weevils and Larval Tick

help!! bedbugs? body lice? help please!!
Location: southern Maryland
August 5, 2011 5:29 pm
Please help, my husband’s niece house sit for us & the next day after being home we found all these little bugs on top of the bed. We thought they were baby dog ticks round & black grey in color.

We vacuumed them up & stripped the bed. The next day we came home to them on the bed again & I went into overdrive cleaning, even encased our bed. I have bites on my, neck, shoulders & around hairline. My husband & daughter have no signs….I. have checked our heads for lice & nothing!!

I am losing my mind over this & getting tired of our nightly ritual of bed cleaning. We live in southern Maryland. I am also submitting a pic of a black bug we have seen a lot of, that bug is upside down in the pic….thank you!!
Signature: desperately need help

Thing found on the bed

Dear desperately need help,
We cannot make out any details in the thing you found on the bed.  Did they move?  Are you certain they were living things? 

We sometimes get reports of Tropical Fowl Mites or Tropical Rat Mites entering homes and biting the occupants, but this generally happens if there was a bird nest on the roof or a rat’s nest the attic, and the occupants “flew the coop”, leaving nothing else for the Mites to feed upon.  Again, we cannot make out any details in your photo to be certain. 

Here is a link to Biting Mites in the home from CityBugs website.  The second creature is a Grain Weevil, and it may be infesting stored grain products in the pantry or pet foods including bird seed.  You will need to find the source of the infestation to eliminate that problem.  Just discard the infested food products.  Here is a recent posting on Grain Weevils.

Grain Weevil

help!!! bedbugs? body lice? please help
Location: southern maryland
August 6, 2011 1:33 am
Thank you for responding so quickly! The weivels are an easy fix. The bugs found on bed were alive. At first glance it looked like dirt & then I did think were dead….but they moved very slowly.

Sort of just pulling themselves along with their very tiny (many) legs. I took a couple of more pics, hope they help. Also the one in the pic seems to be dried up kind of shriveled…probably from one the many products I used. However my itching has not subsided. Thank you again!
Signature: desperately need help

Unidentified Bed Thing is probably Tick Larva

Hi again desperately need help,
We are sorry, but we cannot tell what this is.  It might be a Mite.  Perhaps one of our readers will be able to provide some information.

Letter 6 – Grain Weevils

Subject: Odd bugs in kitchen
Location: connecticut
October 18, 2015 6:10 pm
Hello, we have some odd bugs that started showing up on our kitchen counters and stove. We cannot figure out what they are! Gross! Please help. Thank you!
Signature: Sandi Lynn

Grain Weevils
Grain Weevils

Dear Sandi,
You have an infestation of Grain Weevils, a common pantry pest.  Start by checking rice or other grain stored in the cabinets.  You should also check bargain bags of pet food and bird seed.

Letter 7 – Grain Weevil

Bug Identification !
Hi there!
I’m Heather from Southern California, I recently have been finding lots of bugs all over my tiles and carpet area… They crawl really slow, and when touched or blown agaisnt , tuck there legs in.

The pictures that i took are of the bugs on a 12inx12in tiles. If you could help me identify the bugs and let me know where they came from that would be great!
THANK YOU VERY MUCH!
Heather

Hi Heather,
This is a Grain Weevil, a type of Pantry Beetle. We are guessing they are infesting some stored food, possibly pet food or other flour product in your kitchen.

Letter 8 – Grain Weevil

Found in Dried Noodles with mold!
This was the most descusting thing that Ive seen in quite a while. I was grabing a ramen and noticed a mold bag of noddles that had previously been opened.

I took a second look and about One Hundred of these tiny little bugs where cralling and falling out of the bag! What are they and How can I get rid of them.
P.S. I decided NOT to eat the ramen.
Kyle G.
Austin, TX

Hi Kyle,
You found Grain Weevils in your Ramen. They are a type of Pantry Beetle easily identified by the snout. Obviously a female beetle got into the bag and layed eggs. This is just one reason there is an expiration date on foods.

Letter 9 – Grain Weevils

Tiny Black Bug pics on a dime…
Great website, wonderfull resource! We just moved into a house this week I have no idea what these are, but I found about 10 of them around my window this morning lying around barely moving.
Hope you can help,
jesse

Hi Jesse,
This appears to be some species of Grain Weevil, a type of Pantry Beetle. They infest stored grain products. It is possible they were somehow left behind when the previous tenant vacated. Without a food source, they are trying to get outside and are dying.

Letter 10 – Grain Weevil from England

Subject: what bug is this?
Location: north west england
January 18, 2017 4:21 am
hi mr bug man can you help me with what this bug is and how to get rid of them they are in my bathroom and kitchen???
Signature: thenks rebecca

Grain Weevil

Dear Rebecca,
This is a Grain Weevil and there are many species that will infest stored grains and grain products, including rice and bird seed. 

We would suggest that you begin by investigating the pantry, or that bargain bag of bird seed or pet food that you are storing to find the source of the infestation.

Letter 11 – Grain Weevils

Subject: Unknown household insect
Location: Winter Park Fl 32792
February 17, 2017 8:35 am
Dear Bugman,
I find this bug in copious numbers on the floor and along the baseboards in my home. They are in multiple, nonapproximateing rooms and are almost always dead.

Please identify them for me and tell me what, if any, action I can take to rid my house of this population. Excuse the lack of magnification, this is as close as I can come with my iPad.
Signature: Frederic Bryant

Grain Weevils

Dear Frederic,
These are Grain Weevils, and you need to locate the source of the infestation.  Start with rice in the pantry or that big bag of bird seed you have stored somewhere.  They will also infest bargain bags of pet food.

Mr. Marlos,
Thanks for your prompt reply! I will get right on the case and see if we have any of those items you mentioned lying around loose.  I will also lace the areas with a residual insecticide. Thanks again for your prompt service.
Regards,
Frederic Bryant

Letter 12 – Grain Weevil

what is THIS?
HI there, I know winter and spring bring all sorts of things into the home but ive never come across this typ of insect. They have been in every room in my home and im really concerned because i have a 2 week old baby. It looks like it may have a stinger???
Angie, Windham,NH

Clean out the Pantry Angie,
You have a species of Grain Weevil. They won’t sting, but they will eat grain products you keep in the kitchen.

Letter 13 – Grain Weevils

Beetle Infestation
Hello, I live in Saskatchewan, Canada and have found 40-50 beetles in my house in the past two weeks. They are everywhere … upstairs, downstairs, bathrooms, kitchen, bedrooms, etc, etc. They are approximately 1/4 inch (5-6 mm) in length and solid black.

We’ve never seen them fly and believe that they don’t have wings. I’ve included pictures. I found one larva. It was redish-brown and appeared striped (very similar to that of a larder beetle).

Can you help us identify them, tell us why they’re moving in, and how to get rid of them. Thank you so much for any help you can offer.
Renee.

Hi Renee,
You have one of the Grain Weevils. This is just one type of Pantry Beetle. Grain Weevils infest stored grain products. Weevils belong to the Family Curculionidae.

Letter 14 – Grain Weevils

Pointed head bug
Dear bugman,
Perhaps you can identify this bug picture I sketched. I cannot find a close match anywhere to say that I am sure what it is. It is a 6 legged bug VERY tiny, about 1/10″. I can tell you that not only did they show up in my kitchen, but there were literally millions in a bag of birdseed!

There were so many that you could hear the bag rustling. Gross! I looked in the bag to see millions of these creatures with their pointed heads and antennae. I hope you could steer me as to what these bugs are.
Thanks!
Tom Bartman
Pottstown, PA

Hi Tom,
Weevils are one type of Pantry Beetle whose shape matches your description and drawing. Weevils are a type of beetle belonging to the family Curculionidae. Grain Weevils belong to the genus Sitophilus and have the head elongated into a snout.

Letter 15 – Rose Curculio or Rose Weevil

red bug on roses
Hi! These little red guys are all over our roses every Spring and if we don’t pick them off (hundreds) we get no flowers. Do you know what they are and/or how to deal with them? Thanks very much!
Sarah Cerles
Sonoma, CA

Hi Sarah,
This is the Rose Curculio or Rose Weevil, Rhynchites (Merhynchites) bicolor. BugGuide has much information on this rose pest.

Letter 16 – Grain Weevil

Please help to identify bugs
Hi.
We have what seems like a million of these little black bugs, primarily in our finished basement. They are tiny – you can see next to the penny a comparison- but less than 1/8 inch.

There are tons of them, though. We find them dead and alive. They have six legs, two antennae and a long, skinny nose/snout thing. They are semi-hard, but not so much that you can’t squeeze them. They are on the carpet (berber) and sometimes on the linoleum and concrete.

Our basement is semi-underground. Meaning, if you look out the windows, the ground is a littler higher than waist level. We live in Maryland, so you can get an idea of climate/geography.

Please help! We don’t know if they’re good, bad or indifferent. Thanks so much.
(Do we check your website for a reply or will you send it here? Thanks!!!)

Hi there,
We try to answer as many letters as possible. We post on the site and respond directly. You have some species of Grain Weevil, Sitophilus species. They are very small and the larvae, which do the damage in stored grains, are obese pale grubs without obvious legs.

Letter 17 – Sweet Potato Weevil from Hawaii

A Sweet Potato Weevil?
Sat, Dec 6, 2008 at 7:15 PM
Hello Bugman!
About a week ago I threw an old sweet potato into the yard. Today I went to move the sweet potato to a garden area just in case it was going to grow and I found some odd little red and black insects collected underneath it.

The bugs were a little less than a centimeter long and they had black heads and abdomens with thoraxes that looked as if it was made of two red spheres. Their heads had a long black snout with antennae at the end of the snout. When anything touched them they dropped to their sides as if they were dead and a minute later they would revive themselves and move around again.

They also pulled in their antennae when they played dead. I browsed through insect images online and I think they might be sweet potato weevils but I’m not entirely sure.

That bug in the photo was the only one that remained on the sweet potato when I moved it, the rest fell off playing dead.
Thank you for your time reading this! And pest or not, they all were left unharmed after the potato was moved.
Yvonne
Hilo, Hawaii

Sweet Potato Weevil
Sweet Potato Weevil

Hi Yvonne,
You are absolutely correct. This is a Sweet Potato Weevil, Cylas formicarius. It is a perfect match to images posted to BugGuide which states: “Range Worldwide (mostly tropical and subtropical).

Introduced in North America, where found from South Carolina to Florida, west to Texas” and “Larvae bore in sweet potatoes. Tiny white eggs are laid in punctures made in vines near ground, or even in stored potatoes.

Larvae burrow in and feed for 2-3 weeks, then pupate in a burrow (2). Also attacks morning-glories and some Asteraceae.”

Sweet Potato Weevil
Sweet Potato Weevil

Thank you so much for the identification! I am one insect identification smarter now 🙂  My neighbors recently dug up all of their sweet potato plants so perhaps they wandered from there to my yard looking for food.

I didn’t know these weevils existed until I saw them under the sweet potato, it’s amazing how insects have their own little niches in unexpected places. Thank you again for the identification!

Letter 18 – Grain Weevils and Hypersensitivity Pneumonitis

Grain Weevils
March 2, 2010
I was shocked to read repeatedly on your site that bugs called grain weevils are not harmful to humans. If you did the proper research, you would find that inhalation of dust from the grain weevil causes a serious illness in humans called hypersensitivity pneumonitis, which results in pulmonary fibrosis and is FATAL.

I know this because I have this illness, which I contracted from an infestation of grain weevils from a box of dry pet food. If you look up hypersensitivity pneumonitis in any medical textbook, you will find that Miller’s Lung, caused by the grain weevil, is one of the causes of this fatal disease.
Goldy G.

Dear Goldy G.
We will research this condition and link to findings on the web.  Here is what we found upon researching Miller’s Lung.

Letter 19 – Grain Weevils

Tiny Black Beetle Like Bug
Location: Southern California (Huntington Beach .5 mile from beach)
June 16, 2011 6:17 pm
It is a tiny black bug (less than cenitimeter) that looks simliary to an Emperor Beetle. They are numerous and come out from under the stove and stairs. Exterminator did not know what it was.
Signature: What does this mean?

Grain Weevils

I figured it out.  It was a weevil.  No need for your assistance.  Thank you,

The signature on our form is the place you put the name you would like to be posted with your letter.  Some people provide their entire given name, and others prefer to sign with initials.  Some of our readers provide a clever moniker in that field.  You do have an infestation, but we would strongly urge you not to hire an exterminator. 

You have Grain Weevils, and you need to find the source of the infestation.  Tenting your home will not help with this problem.  Grain Weevils often infest birdseed, and pet food, so if you have bargain size items that you have not used up in a timely manner, the Grain Weevils may be reproducing there. 

They will also infest a wide variety of stored grain products, including big bags of rice.  Check the pantry thoroughly.  Once you find the food source and eliminate it, things should be fine. 

Food products often have an expiration date, and at least once a year, you should make an effort to remove old boxes of cookies and crackers and similar items from the kitchen shelves.

Letter 20 – Sesbania Clown Weevil

Subject: Can’t find a match for this little guy
Location: Cypress, TX
August 5, 2012 12:38 pm
It was a milkweed assassin that got me more and more curious to start identifying the little critters I come across, after I was pulling weeds one day. Felt a sharp sting out of nowhere, and it seems I wasn’t paying enough attention – the bright orange little guy let me know he was there for sure!

Anyway, on to today’s find – and I can’t find out what he is! I actually caught him crawling on my back, inside the house. Not quite sure where I picked him up, but he seemed happy enough to just go along for the ride.
Signature: Brian in Cypress, TX

Sesbania Clown Weevil

Hi Brian,
We had to do quite a bit of digging before we were able to identify this weevil on BugGuide as
Sudiagogus rosenschoeldi, a species with no common name that belongs to a genus that BugGuide calls the Sesbania Clown Weevils.

Letter 21 – Two Weevils from Brazil

Subject: Weevils
Location: Jaraguá, São Paulo, Brazil
January 22, 2013 7:35 am
Hello, there!
I’m sending the pictures of these two impressive weevils. The large dark guy is a black coconut bunch weevil Homalinotus coriaceus.

The colorful one is Naupactus rivulosus and feeds on citrus. Both are considered pests of economic importance here in Brazil.
Signature: Cesar Crash

Weevil from Brazil: Homalinotus coriaceus

Hi Cesar,
Thank you for sending your spectacular images that illustrate the diversity of Weevil species in Brazil.

Weevil from Brazil: Naupactus rivulosus

Daniel, you can crop the images I send to remove the watermark anyway you wish.
It’s because I send it at work, then I took my own images in the internet, I like to register the time the pictures are taken for sazonal references.

Thanks Cesar,
That is nice to know for the next time you send photos.  I wanted to preserve your copyright information on the image, so I cut and pasted it back after cropping to resize.

Letter 22 – Three Weevils, including mating pair, from Madagascar

Subject: Madagascar weevils
Location: Madagascar
December 20, 2013 8:51 am
Hi Daniel.
I thought you might enjoy this selection of weevils from Madagascar.
Signature: David

Mating Weevils
Mating Weevils

Hi David,
Thanks for sending in this medley of Weevils from Madagascar, including a mating pair.  We are not going to attempt species identifications at this time.

Weevil
Weevil
Weevil
Weevil

Letter 23 – Grain Weevil in South Korea

Subject: I don’t think it’s a bed bug, but what is it?
Location: Seoul, South Korea
January 25, 2017 7:06 am
I keep finding these little guys around my apartment. Started showing up about two weeks ago once it really started getting cold, though I don’t know if that has anything to do with it.

I find one – five of them a day, usually crawling on the wall or floor. I live in a one room apartment in South Korea, so kitchen pantry, bed, and bathroom are all within reach.

I generally find the bugs near my computer desk or on the floor near the bed. As far as I can tell from googling around, they don’t look like bedbugs, but I’m starting to wonder if I should be concerned about them as I’m only finding more of them every day now.
Thanks for the help!
Signature: Owen

Grain Weevil

Dear Owen,
This is a Grain Weevil, a cosmopolitan household pest that infests stored grain products including rice, pet foods and bird seed.  Search the pantry and that bargain bag of pet food for possible sources of your infestation.

Amazing! Thank you so much for the quick ID. I’ll purge the pantry ASAP. This website is fantastic!
– Owen

Letter 24 – Grain Weevils

Subject:  What is this
Geographic location of the bug:  Kentucky
Date: 12/04/2017
Time: 10:43 PM EDT
I’ve been bite by something for years when I  on my dad’s couch… Finally seen the critter but  don’t  what is…. Help me please
How you want your letter signed:  Debbra Smith

Weevils

Dear Debbra,
We believe you should look elsewhere for your biters.  These are Grain Weevils.  They are a common household pest that will infest stored food products including rice, bird seed and pet food.  We do not believe they are biting you.

Authors

  • Bugman

    Bugman aka Daniel Marlos has been identifying bugs since 1999. whatsthatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

    View all posts
  • Piyushi Dhir

    Piyushi is a nature lover, blogger and traveler at heart. She lives in beautiful Canada with her family. Piyushi is an animal lover and loves to write about all creatures.

    View all posts
Tags: Weevils

Related Posts

83 Comments. Leave new

  • Definitely edible. There’s no record of anyone getting ill from the consumption of insects [or their frass] that infest human foods. In fact the occurence in our food of weevils or moths, in any of their life stages, would simply increase the nutrition of that food.

    Reply
  • Hi Heather…
    The bug you posted is a type of weevil which belongs to the genus Sitophilus… Sitophilus granarium or the wheat weevil lacks those reddish spots on the elytra and never flies (lacks hindwings)… Both sitophilus oryzae (Rice weevil) and S. zeamays (Corn weevil) fly and look like the image shown but have an interesting difference… The rice weevil retracts its feet when touched and plays dead for some time but the corn weevil never plays dead!… Corn weevils also grow a little bit bigger.
    I study “Plant protection” in Tehran university of agriculture”, Iran… We study all kinds of pests including pests of stored products…
    I hope it was useful…
    Yours: Mohsen…

    Reply
  • I also have an infestation of these pesky little creatures. We noticed them several months ago I had sewed and made some of the corn bags for the game corn-hole. I had the box placed in a closet. I saw these bugs and immediately started investigating and I removed the box and sprayed. I vacummed everything up and didn’t noticed them for some time. About a month or so ago I noticed them everywhere in the closet so I pulled everything out including all the clothes. I am not able to find what it is that they are feeding on. They aren’t visible in my kitchen and believe I have tore my house apart and sprayed every spray money can buy. They have moved to every room in my house its almost like they are feeding off of my carpet. Does anyone have any suggestions???

    I keep pulling everything out and vacumming and then emptying the vacumn into a bag and taking it outside to the trash. I am seriously about to pull my hair out. I don’t really have the money to have a professional come out.

    Reply
  • The picture of the weevil on the corn kernel is great, what are the rules of me using this picture in a presentation?

    Reply
    • You have our permission to use this photo in a presentation if it is for an educational purpose.

      Reply
  • hypersensitivity pneumonitis seems to be caused by REPEATED exposure to dusts, not just an exposure one time. One of the main treatments is simply staying away from the dust.

    Reply
    • Thanks so much for providing this comment. We are not physicians, and we are unable to make any professional diagnoses, but we couldn’t quite swallow the claims being made in the original post.

      Reply
  • A link to a very easy to read information page on hypersensitivity pneumonitis… http://www.merck.com/mmhe/sec04/ch051/ch051b.html It pretty much looks like its a rare case when this disease, which is caused by an allergy to specific dusts, actually ends up being fatal.

    Reply
  • Hypersensitivity pneumonitis is an inflammation of the lung (usually of the very small airways) caused by the body’s immune reaction to small air-borne particles. These particles can be bacteria, mold, fungi, or even inorganic matter. Grain Beetles are not Vectors of this disease…. right??

    Reply
  • Can the poster count the legs? That would help us to see if it’s an insect or a mite. With regard to the weevils – these are common in the tropics and we sift them out of the flour with a sieve! We don’t throw away the flour.

    Reply
    • Thanks Juliet,
      We strongly believe that many old recipes call for sifting flour specifically to remove any insect pests that have infested it during its storage. While this is an easy fix with flour, with other stored products, there is not an easy means of separating food from pest and it is easier to discard than to have an infestation spread. We recently had an issue with meal moths in the nut canister. We were able to pick through the whole nuts, but all the nut meal that accumulated in the bottom of the canister, which we love to include in the batter for German Chocolate Cake, needed to be discarded. Corn meal is another product that is easier to discard than to try to salvage. We do give our flour sifter quite a workout, especially during the summer.

      Reply
  • Susan J. Hewitt
    August 6, 2011 8:15 am

    The rounded creatures look to me rather like small, blood-engorged, grey ticks, as desperately need help (dnh) suggested in the original post. The grey color is indeed reminiscent of dog ticks, but on the other hand, there are a lot of different species of ticks. I wonder if dnh currently has a dog that likes to snooze on the bed? Anyway, it looks as if the ticks were collected using a piece of scotch tape. After collecting, dropping the piece of scotch tape into a small bottle of alcohol would preserve the creatures so that dnh can show them to an expert.

    Susan J. Hewitt

    Reply
  • Susan J. Hewitt
    August 10, 2011 7:51 am

    Ticks start out as minute miniature versions of how they look in the adult form, so why not? Take a look at these hatched tick eggs here:

    http://tgaw.wordpress.com/2009/05/04/introducing-the-baby-ticks/

    Reply
  • I sent a request a few weeks back with photos, but just found them myself here.

    The showed up again tonight, after being wiped-out the week before last. I couldn’t figure out where they were coming from because, unlike last time, my doors/windows have not been open for warm weather.

    Then I thought to check the birdseed I keep near my patio in a bucket. Yup.

    Seeds led me to narrow my search to weevils and these look like the ones I have.

    Reply
    • We are happy to learn you did eventually find the identity of your Weevils as well as the source of the infestation. Sadly, our staff is quite small and consequently, we are unable to respond to every request we receive.

      Reply
  • I agree with Susan that it’s a larval tick.

    Reply
  • Dear Yvonne,

    I am writing a field guide,”Beetles of Eastern North America” for Princeton University Press that will cover 1,400 species in color. This book is part of the same series that includes Dave Wagner’s caterpillar books and Dennis Paulson’s recent odonate tomes. I would like to use one of your images of Cylas formicarius that appear on What’s That Bug? that you posted back in 2008.

    Unfortunately, there is no photo budget for the field guide, but I can promise you a copy of the book when it is published within the next two years and my eternal gratitude! Might you be willing to contribute this image to the book?

    I look forward to hearing from you.

    Sincerely, ART EVANS
    arthurevans@verizon.net

    Reply
  • smoothing bit me in the middle of the nite the bite was like a flee bite but hurt like a bee the secket day it had a bump in the middle and two half circles around it third day I started getting red bumps all over my chest by the bite was and now its been 2 weeks and I am covered in red bumps from head to toe and some of them sting some times but where the bite was is gone and the only bug I have seen in my house was a little black bug in my bird seed but petco said it wasent a bite from that bug what could it be please help in Jonesboro Arkansas

    Reply
    • We have these bugs too right now and haven’t found the source of their food yet. BUT my mom got a bite on her arm three little bites to be exact all right next to eachother like in a line and it got all red all around it and the red diameter seemed to grow larger and larger over the next few days after she got the bite. Her’s stings and itches and we cant figure out what its from either. Did YOU ever figure out what yours was from?

      Reply
    • Sounds like chiggers, you can get an over the counter cream for it

      Reply
  • No doubt in my mind, it’s a tick. When you start to deal with a tick infestation, it can be confusing because they have 3 distinct and very different manifestations, four if you count the egg stage and five if you count engorged adult separately. Infestation is a real problem because the engorged female will crawl off into some dark space to lay a ton of eggs. They don’t hatch for a few weeks, so just when you think you’ve licked them, the tiny hatchlings, very very small and hard to see with out a magnifying glass, will start the cycle again. They feed, then crawl away to change into a nymph then feed again then crawl off to turn into an adult… The two photos presented above show a young adult (I think) and an engorged female who may have laid eggs. After she lays the eggs, her job is done and she Shrivels up and dies. That’s what the adults do; feed, engorge, mate and lay eggs. I wish I didn’t know so much about them, and I really wish I had a cure all miracle for getting rid of the demons, but I don’t. The only real cure is to make sure your animals aren’t breakfast and lunch and you are not dinner. I love a tick remedy called certifect. It has amitraz in it and that chemical can be hard on dogs and should not be used on cats, but it kills any ticks that bite the dogs. It’s been the ONLY dog tick treatment that has worked for us. And clean the room, rooms, house and in my case, boat with a fine tooth brush. They crawl upwards if they can. Check curtains and behind wall outlets. Vacumn and then vacumn again and then vacumn every day for a couple of weeks. Dont miss window sills, behind headboards and dressers. Make sure you empty the vacumn cleaner bag into a sealed plastic bag before you toss or you will be spreading the herd. And of course, check the mattress and wash all linens in hot water. I realize the above post was a few years ago, but there’s so little info online that I thought I might be able to help someone else get rid of these blood sucking pests.

    Reply
    • Wow Lauri,
      We are going to make your comment a distinct posting that will be more visible for our readers.

      Reply
  • davegball@gmail.com
    December 21, 2013 9:24 pm

    No problem Daniel. If I ever find out their names I’ll come back and update this entry.
    David.

    Reply
  • davegball@gmail.com
    December 21, 2013 9:24 pm

    No problem Daniel. If I ever find out their names I’ll come back and update this entry.
    David.

    Reply
  • i don’t see them in my kitchen i see them in my bathroom with I’m shocked cause i know what they eat since i was a little girl but i can’t for the life of me figure out why they are in my bathroom and i don’t keep or eat food in my restroom so please help????

    Reply
  • Is this the same kind if weevil that I just found in my pancake mix? I’m wondering if I should just pic them out or throw the whole thing away. I suppose they have left unseeable traces of themselves in there. Yup I’m discusted now

    Reply
  • 🙂

    Reply
  • Stefanie sands
    May 11, 2015 8:32 am

    This came in so handy. I had deer feed in the garage and went to open a plastic bin, and there were tons of them. How did they or do they get into a sealed container? How do they originate? I still see some crawling around. Do they bite? They are kind of hard to kill. They are tiny suckers.

    Thank you

    Reply
    • It is possible that the feed was pre-infested with eggs when the feed was originally packaged.

      Reply
  • Stefanie sands
    May 11, 2015 8:32 am

    This came in so handy. I had deer feed in the garage and went to open a plastic bin, and there were tons of them. How did they or do they get into a sealed container? How do they originate? I still see some crawling around. Do they bite? They are kind of hard to kill. They are tiny suckers.

    Thank you

    Reply
  • Helen mcfie
    July 12, 2015 6:03 am

    Have been vomiting and have congestion in the lungs for past few weeks. Just had grain weevils identified in my kitchen food cupboards. They really are tiny and hard to spot. Think I might have eaten quite a few. Yuk!

    Reply
  • Weavil infested corn cannot be sold as human food…so the farmers tend to grind it up and sell it to birdseed companies at very low cost. While the bugs usually get shook out or killed during grinding and processing, the eggs do not. So after the bag sits idle for a few months, those left over eggs hatch…produce a few bugs…those mate…late more eggs…and so on until after a few months you’ve got a giant bag full of bugs…then they start squirming out of the bags through small holes and going elsewhere. I had a severe run-in with them and discovered they were in my Redbird brand bird seed bags from Walmart I bought last year on sale. I bought four bags and had stored them in a back room. By the time I read this article and identified the bug…and then opened the bags, it was not pretty. Thousands of the little boogers between four 40lb bags. It was creepy and gross. I’m from Arkansas, by the way, so not just a Texas bug.

    Reply
    • Thanks for verifying our response with a personal experience.

      Reply
    • I bought Top Score brand deer corn from WalMart about a month ago and found it to be pretty dusty and had some weevils (based on the pictures on this site–thanks!), but didn’t find them till I got to the bottom of the bags. Shook down maybe? I bought again recently and same situation. Never had corn this dirty and none with bugs in other brands. I do know that on the last purchase Walmart had a HUGE inventory stored in the garden section, I am referring to a lot of pallets stacked two high on the racks. I’ll be over there today and will see if Mangagement is aware. I’m pretty sure they are by now. Question : who should be notified at the state level to investigate? Do you think it is in all grain from that region? Most informative site and greatly appreciated!

      Reply
  • I cleaned out the cabinets. And now I can’t sleep feeling like there on me. I will be calling to get it sprayed

    Reply
  • Hey i have seen some bugs in My kitchen they are all over they are very very fine And dark looking. it can hardly be seen by the naked eye..it resembles the grain weevils but they eat everything..i found in flour and cornmeal i Found them in my teabag, seasons, pills, yes my medication which are vitamins,pasta, medicine that is cough syrup, i have serious infestation. I recently had to throw everything out..i live in the caribbean…they literally eat and infest everything…please i have always Been cleaning and wiping and did not know it was bad until i started to check Everything in house in cupboard and counter table and found these very fine bugs in everything they even eat Garlic, and banana and green leaves and they survive in the fridge because i had placed a box of pasta in the Fridge and they not seen these bugs and upon checking they were there alive…please help what are these

    Reply
  • I have a corn burning stove to heat my house for the winter. I keep the corn in my basement in bags with a dehumidifier on them. I just noticed all the bags are filled with the grain weevil that I found on your web site. I Don’t want to lose all the money I put into the ton of corn I have stored. Do you know of any kind of spray I can use to kill them. Thank you,
    Kyle

    Reply
  • I have a corn burning stove to heat my house for the winter. I keep the corn in my basement in bags with a dehumidifier on them. I just noticed all the bags are filled with the grain weevil that I found on your web site. I Don’t want to lose all the money I put into the ton of corn I have stored. Do you know of any kind of spray I can use to kill them. Thank you,
    Kyle

    Reply
  • I have had the exact beetle. They came out of the wallboards in my pantry, shortly after I stuffed steel wool into all visible cracks between the floor and the wallboard. They showed up in mass within a few days, but after wiping everything with sterile wipes, no more have shown up. Try the steel wool…. it might have irritated them enough to brake the life cycle.

    Reply
  • Thanks everyone for the heads up. Just experienced these little weevils at my mothers house in the utility room, she had bird seeds stored in the room and they were absolutely everywhere. I emptied the 2 full buckets of seed into the garden for the birds. At first I couldn’t see where they were all coming from then on closer inspection of the buckets the inside was rippling as if the grain was alive. Hopefully they will all eventually die off. My question is do they like cat biscuits? Would it be worth throwing them out too, and experience or advice on this will be appreciated. Unless I find out sooner than you guys telling me..

    Reply
  • I bought a couple of bags of birdseed from Walmart and just open the last bag, and it was infested with little bugs I put the birdseed out in the garage I’m from Chicago. It is now about 15 degrees outside will the cold kill these bugs. thank you, is it okay to feed it to the birds

    Reply
    • We don’t believe the cold will effectively eliminate the Weevils from the seed. You can try feeding the seed to the birds.

      Reply
  • I also made corn hole game bags with deer corn, smelled a mildew odor, I opened the soft side cooler with the bags in it and they were everywhere. I’ve heard that you can put the bags in the freezer to help with moisture, will the freezer also help to keep the preinfested eggs from hatching?

    Reply
  • I have had most all of the above experiences except that my bugs fly. They look like the grain weevil pictures, started when I cleaned my cabinets full of outdated dried goods, and feed off of me and my cats. One cat now lives in a caninef under tge bathroom sink that is not yet infested. I can pet them withouf causing pain only if I have covered my hands in permethin (i know not healthy but only relief). They do like food but everything else, too. They seem aggressive. They clamp onto me when biting and look like those little red dots. However, when hit with multiple ones, the pain is excruciating and I find little grey flecks. When I finally got a pucturs of one that was half dead (only safe way), it looked like one of the beetle pictures. These bugs clearly bite. They fly, too, unless I’ve got a secondary infestation. I should mention also that this became evident within hours of getting my cats treated for fleas, and these bugs have been confirmed not to be fleas.

    Reply
  • I feel relieved after reading this!! Found lil dark pest and thought I had my first bed bugs. They were in utility room and first spotted on just dried sheets.
    Then many were in stored grocery bag.as I got all my saved grocery bags out,theres was a partial bag of bird seed hiding and omg.200 plus in it with tiny hole puntures all in it.We set off a bug bomb in the room.Sure glad it’s weevils and not bed bugs.thanks for your help

    Reply
  • I feel relieved after reading this!! Found lil dark pest and thought I had my first bed bugs. They were in utility room and first spotted on just dried sheets.
    Then many were in stored grocery bag.as I got all my saved grocery bags out,theres was a partial bag of bird seed hiding and omg.200 plus in it with tiny hole puntures all in it.We set off a bug bomb in the room.Sure glad it’s weevils and not bed bugs.thanks for your help

    Reply
  • The information is very helpful.Will they not hurt hens when they crawl about in a room with hens or broilers?Thank you

    Reply
  • I purchased a Pennington Premium woodpecker treat Bar from Walmart in Houston, at silber and I-10. Luckily I didn’t bring it in the house. I had these crawling all over my patio minutes after opening the package. They are easily killed with Terminex insect killer. I bought at the $1,25 store. But beware of any bird seed. Especially from Walmart. This is the second time this has happened to me. I’m trying to lure out the bugs in. Plastic bag. I’m going to hang the seed treat in hopes the birds eat it and the rest of the larvae before they hatch!

    Reply
    • I bought infested bird seed bags from Lowes. The whole palette at the store was infested! Omg I had them all in my house and car!! From that stupid bird seed!! I told management and they pulled that from shelves. I’m still finding them .. so happy to identify them too.. HATE THEM! dealing with aftermath of it. Praying they don’t breed or multiply. I think they’re hiding in floorboards and carpet…

      Reply
  • I too found a bag of these little beetles in cracked corn we’re using for filler along with sun flower seed.
    Nice!
    Walmart and there Suppliers can KNOWINGLY send infested products across the country. Where’s the Warning label? (May contain Weevils)
    Thanks for the infestation in my house Walmart!

    Reply
    • The exact origins of many creatures that infest food products is unknown because they now have such a cosmopolitan distribution due to globalized shipping and trade. More than once we have bought new corn meal only to find it infested with Meal Moths. Take a look at this image from our archive of infested sesame seeds.

      Reply
  • I too found a bag of these little beetles in cracked corn we’re using for filler along with sun flower seed.
    Nice!
    Walmart and there Suppliers can KNOWINGLY send infested products across the country. Where’s the Warning label? (May contain Weevils)
    Thanks for the infestation in my house Walmart!

    Reply
  • Brian Colbert
    May 20, 2017 11:50 am

    purchased new cornhole bags last fall and when we used them this year noticed some had lost considerable weight and volume, cut one open and they were full of grain weevils and had consumed most of the corn fill.

    Reply
  • if I throw my infested bag of corn in the yard, will the weevils hurt my yard plants and trees?

    Reply
    • Grain Weevils feed on grain, not plants. If you throw the corn in the yard, it will not affect your plants and trees.

      Reply
  • I own a pest Control company in Central Florida. Envirosafe Pest Control Orlando http://www.orlandopestcontrol.com 407-580-7124 and within the past week we have found granary weevils in a bag of deer corn stored in a business and then in a closest where the granary weevils had infested corn hole bags. These things can be trouble and are hard to get rid of. Call us in Orlando or Winter Garden http://www.pestcontrolinwintergarden.com or in NC http://www.huntersvillepestcontrolexterminator.com

    Reply
  • I ordered corn hole bags from amazon. Weeks later went to get out of box and bugs were everyehere. Some bags were already lighter from them eating it. They are in my house now. Very gross cant order anything anymore without worry.

    Reply
  • What do you recommend to get them out of the house? Insect bomb?

    Reply
  • Bought a bag of birdseed for Cardinals and a had with corn. Wal-Mart sticks again. Went to take the corn out of the seed and saw several of these bugs crawling. Owensboro, My

    Reply
  • Thank you for all your information, it has been very helpful. I have just spent the morning cleaning out one of my kitchen cupboards where I kept a bag of mixed bird seed. I’m in the UK. I had to chuck out quite a bit of other foods as these bugs seamed to get everywhere! I’m hoping I have got rid but am worried iv’e missed eggs. I just have to keep on top of my cupboard cleaning I guess.

    Reply
  • how do you kill the weevils

    Reply
  • Hypersensitivity pneumonitis is a rare immune system disorder that affects the lungs. It occurs in some people after they breathe in certain substances they encounter in the environment. These substances trigger their immune systems, causing short- or long-term inflammation, especially in a part of the lungs called the interstitium. This inflammation makes it harder for the lungs to function properly and may even permanently damage the lungs. If diagnosed, some types of hypersensitivity pneumonitis are treatable by avoiding exposure to the environmental substances or with medicines such as corticosteroids that reduce inflammation. If the condition goes untreated or is not well controlled over time, the chronic inflammation can cause irreversible scarring of the lungs that may severely impair their ability to function.

    Reply
  • Mary L Trudeau
    August 24, 2018 4:01 am

    We buy bird feed and corn to feed the birds and wildlife. We have these pesky little bugs in our garage my husband has litterly killed thousands, and we bought our feed and corn from a local feed store.

    Reply
  • I have an almost empty 40 pound bag of deer corn, and today for the first time it was covered with these weevils. I put the bag outside on the patio in hopes of keeping them outside. However, I’ve also got a 40 pound bag of black sunflower seed in the garage. I didn’t see any of them crawling on it. Will they eat sunflower seeds, too?

    Reply
  • we bought some corn to feed our deer and did not know to watch out for weevils. there must have been thousands of them in my kitchen, living room, bedroom and in the pantry where the corn was stored. we got the bag of corn out of the house, vacuumed everything and they are still crawling. how long do they live?

    Reply
  • How in the world do you get rid of them?
    You can answer everything but how to get rid of them.
    Can we spray bug spray?
    What?

    Reply
  • How in the world do you get rid of them?
    You can answer everything but how to get rid of them.
    Can we spray bug spray?
    What?

    Reply
  • Bless this site! That explains the faint popping/crackling sound I could SWEAR was coming from the birdseed bag by the patio door. It most definitely was! The weevils don’t seem to have found or maybe don’t care for my cat’s food, so now that the birdseed bag is outside, I hope the weevils in my house will naturally die out. They’re not so bad, and they’re entertaining to the cat.

    Reply
  • Tisha Schnellenberger
    May 18, 2020 5:16 pm

    So can I just put this out for wild birds still if it is I feared? Will they come in my house? Will it hurt the birds?

    Reply
  • Do these little grain weevils have wings? I have found one in my laundry room. It’s jet black with a “snout” and it has a set of wings hiding under his back. I ripped my pantry apart and found nothing inside. I don’t THINK I have any bird seed or anything laying about. But I have noticed 3 of these in my home. 2 in my bathroom and one in my laundry room. After seeing 3 of the same bug I decided I may want to check it out. I live on a slab so I get frequent visits from random bugs but I have never seen these guys before. He is a little less than a quarter inch, fully black, hidden wings, snout, oval shaped and can climb the glass container I have him in. I live in Michigan and it’s starting to get super warm out and I’m wondering if they are coming into my home for shelter from the heat. But is there another weevil out there that looks exactly like a grain weevil? I assumed these types of grain weevils were brown in color but now im thinking they come in black too? And if so I need to find the source of their food. Which I have looked and haven’t found anything yet…I sure hope what I found isn’t the first signs of an infestation.

    Reply
  • After doing a little more research I think what I have is a tiny black snout beetle. Now these look almost similar to the grain weevil (the snout beetle is a weevil also I think) so I’m curious to see if they both are the same bug or if they just look like the same bug. From what I gather, the little winged insect that I have is a snout beetle and they feed on plants and such. But nothing grain related in their diet. I sure hope this is true. I would much rather have a visitor bug in my home than a pest that wants to stay.

    Reply
  • Trudy Tetro
    May 31, 2022 1:55 pm

    I make cornhole bags, sewed a bunch and stored them in totes. Now I open them after the winter (where they were exposed to below freezing temps) to find white worms. I microwaved all my bags for 30 seconds. Thought that would do any in inside the bags. Then I experimented with a live worm, still alive after one minute of microwaving!! Ugh, what to do?!?!

    Reply

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