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How to Get Rid of Rice Weevils - The Complete Guide [2023]

how to get rid of rice weevils

If you've ever found small, dark beetles in your rice, odds are you have a weevil infestation. Weevils are tiny insects that can infest pantry staples like rice, flour, and cereal.

Bug infestation on a rice crop is considered a dangerous food source in many households throughout the country.

It is difficult to control a rice weevil infestation if the infestation gets too big, which means it is important to remain in touch.

In this guide, we'll show you how to get rid of rice weevils so you can keep your pantry insect-free.

What are Rice Weevils?

rice weevil

In Greek rice weevil "Sitophilus oryzae" means " Ice Grain Lover ". A weevil will choose to eat rice if it can.

A lot of them can also consume grains, such as rye and rice. When it comes to seeds, they are likely to eat cashew nuts and bird seeds, and grains such as mac and cheese, bread, and grains.

The Weevil is a small flies that have a length of only 1/16 to 1/8 in (0.15 to 0.33 cm). If one looks through a magnifying glass one sees four reddish-yellow stripes.

You'll also notice a longer snout which represents approximately 1/3 of the entire body length.

Rice Weevil Life Cycle

The Rice weevil's lifecycle is very simple. Adult females lay four eggs a day and produce approximately 400 eggs over their fertilized years.

The larvae emerge and consume the inside of grains over a period of 18 days. After this period pupal lasted six days.

After 3 days, new genitals remain in the kernel while their outer surface becomes hardened.

One generation of rice weevils is done in less than a month, enabling rapid growth. They hide within grains, which allows them to spread easily.

Can rice weevils fly?

Yes. Adult weevils develop wings and can fly. Larvae and Nymphs do NOT have wings until adult age.

Where are rice bugs found?

It is commonly found in grains processing or storing and infests various dry goods. They eat safflower seeds, nut seeds, dried fruits, and pasta. They are often eaten by dogs.

The most common cause of weevil infestation is directly from the stores because larvae are hidden behind a kernel – keeping them hidden from humans.

Are Rice Weevils Harmful?

rice weevil harmful

Rice weevils are one of the most destructive pests that affect grains. In the grain bin or elevator, they can destroy nearly everything in storage.

A few other crops may also be breeding sites for the rice weevil and other food crops. 5.45% of rice stored during a 6-month period is eaten by rice weevils.

In 2017, 9.9% of Benin's population was ill-treated while 33% of kids had symptoms of severe malnutrition.

Some nations that have huge grazing and long food shortages face the threat of a rice weevil.

How Do Weevils Get in Rice?

rice weevil on rice

They hopped into the paddy's car with the weevil rice worms that crawled around it. Because it can take between a month and one year to become an egg-laying mother the rice paddy can easily be filled up by them.

In addition, the rice weevil egg worm is almost invisible so infected rice can go along alongside healthy rice kernels. When you buy rice from a grocery store it can be stored in freezers for up to 4-5 days.

Rice weevil larvae and eggs are incapable of enduring a freeze and deep freezing will keep them safe from hatching and bringing in unwanted surprises when cooking a meal.

Do Rice Weevil Bite?

Weevils can't sting humans. They're also safe and non-toxic for humans and animals.

Despite the fact that the animals are not dangerous to humans and animals that are completely harmless despite their presence and don't care about humans.

Rice bugs are able to digest rice grains, nuts, seeds, or fruit. They eat a lot of plant material and will not bite any animal unless they have bitten it themselves.

Weevil rice is also a harmless pest. Rice weevils, therefore, are an inconvenience since they don't bite.

Signs of Rice Weevil Infestation

rice weevil infestation

Rice weevil infestations can cause significant damage to your crops, so it's important to be on the lookout for signs of these pests.

  • The most obvious sign of rice weevil infestation is the presence of adults or larvae in your rice grains.
  • You may also see rice weevils eating the leaves of your plants, which can cause the leaves to turn yellow or brown.
  • Another telltale sign of rice weevil infestation is the presence of small, round holes in your rice grains.

If you suspect that your crops are infested with rice weevils, contact a professional pest control company for assistance.

See Also: How To Get Rid Weevils - Complete Guide

Is It Safe To Eat Rice With Weevils?

Fortunately, weevils are not poisonous, so if you ingest it or its eggs without knowing, you should be fine.

However, these are more pests than anything else and can make your food less desirable to eat, especially if the infestation is rampant.

The good news is that it can be readily removed and even prevented with a few storage tips and tricks.

How to Get Rid of Rice Weevils Naturally

They infest dry goods in your pantry, like rice, flour, cereal, and grain. The good news is that there are a number of ways to get rid of rice weevils without using harmful chemicals.

Bay Leaves

bay leaves

One of the most effective ways to get rid of rice weevils is to store your dry goods in containers with bay leaves.

Bay leaves emit a strong scent that repels rice weevils. Just be sure to change out the bay leaves every few months to keep the scent fresh.



Certain herbs also have properties that repel rice weevils. Some of the most effective herbs include oregano, basil, mint, thyme, and rosemary.

You can use fresh or dried herbs. Simply place a few sprigs of fresh herbs or a teaspoon of dried herbs in your food containers.

Soap Water

A simple solution of soap and water can also help get rid of rice weevils. Just mix together equal parts dish soap and water in a spray bottle and use it to spot treat areas where you see rice weevils. The soap will kill the weevils on contact.

Garlic Cloves

Garlic is another effective way to get rid of rice weevils. The strong scent of garlic repels these pests. Just place a few garlic cloves in your pantry or cupboard.

You can also make a garlic spray by mixing together equal parts water and garlic cloves in a blender, then strain out the solids and add the liquid to a spray bottle. Use it to spot treat areas where you see rice weevils.

Neem Leaves

Neem leaves are another effective way to repel and kill rice weevils. Neem leaves contain azadirachtin which is toxic to many insects, including rice weevils.

You can buy neem leaf powder online or at some health food stores. Just sprinkle it around the perimeter of your pantry or cupboards.

You can also make a neem leaf spray by boiling neem leaves in water for 30 minutes, then straining out the leaves and adding the liquid to a spray bottle. Use it to spot treat areas where you see rice weevils.


Ginger is another food that can help get rid of rice weevils naturally. Ginger contains compounds that are toxic to many insects, including rice weevils.

Just place ginger root peels in your pantry or cupboards. You can also make a ginger spray by boiling the ginger root in water for 30 minutes, then strain out the ginger and add the liquid to a spray bottle. Use it to spot treat areas where you see rice weevils

Use Matchboxes

One of the simplest ways to get rid of rice weevils is to use matchboxes. Just place one or two matchboxes in the affected area.

The rice weevils will be attracted to the smell of the matches and will crawl into the box to lay their eggs. Make sure to check the matchboxes regularly and empty them when they are full.

Shine Sunlight

Rice weevils love dark, damp places. This is why they are often found in pantries and cupboards. If you suspect you have a rice weevil infestation, try shining a light into the affected area.

The light will discourage the weevils from coming out to lay their eggs. You can also leave the doors to your pantry and cupboards open for a period of time each day to let in some sunlight.

Clean Up Your Kitchen

A messy kitchen is an invitation for rice weevils (and other pests). Be sure to sweep and mop your floors regularly. Wipe down your countertops, appliances, and cabinets with a damp cloth.

Store food in airtight containers and dispose of garbage regularly. Taking these simple steps will make your kitchen less attractive to rice weevils and other pests.

Vacuum Cabinets and Under Appliances

Rice weevils love to hide in small, dark places. To deter them from taking up residence in your kitchen, vacuum under your appliances and inside your cabinets on a regular basis.

Be sure to empty the vacuum bag after each use so that the weevils don’t escape back into your home.

Clean Contaminated Food Storage Containers

If you suspect that one of your food storage containers is infested with rice weevils, it’s important to clean it immediately. Throw away any food that is inside the container.

Then wash the container with hot, soapy water. You can also place infested containers in the freezer for 24 hours to kill the bugs.

Discard All Infested Foods

Any foods that are infested with rice weevils should be thrown away immediately—even if they seem like they’re still good otherwise.

Rice weevil larvae can cause food poisoning, so it’s not worth taking the risk. Plus, throwing away contaminated foods is one of the best ways to prevent further infestations.

Stop Pests from Entering Your Kitchen

The best way to get rid of rice weevils is to prevent them from entering your home in the first place. Start by keeping all food storage containers sealed tightly when not in use.

Inspect any packages of dry goods before bringing them into your home—especially if they show signs of being tampered with.

And be sure to fix any cracks or holes in your walls or floors so that pests can’t enter your home through them.

Frequently Asked Questions

Should I throw away rice with weevils?

Immediately dispose of the weevils in your rice. Examining other grains in your pantry is important. If there are any bugs you can also remove them. It eliminates the problem.

How long does it take to get rid of rice weevils?

Freeze any salvageable food for 4 to 7 days, which will kill any weevil larvae that might be present.


Rice weevil is the major threat to grain farmers and grain keepers silos. If you have a rice weevil in your kitchen, it can cause a lot of stress. So now it's easier to get the people out.

You could use airtight containers and trappers for protecting foods and you could use garlic, bay leaf, and peppers that your household may use for cooking too.

If you're still having trouble getting rid of rice weevils, call a professional exterminator who can help identify the problem and eradicate the pests once and for all!

About The Author:

Meet Mark Calhoun, a seasoned pest control expert in the realm our pest control company. With over 10 years of dedicated experience and Managing Editor. His primary mission is to furnish you with precise and invaluable DIY insights, ensuring your home remains pest-free while aiding you in distinguishing various household pests.
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