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How To Control Rice Weevilsrice weevil

There are a large variety of pantry pests which can invade your stored food items. One of the most common among them is the Rice weevil. Originally from India, Rice Weevils have made their way to the United States through commercial trade. Rice weevils are not a threat to humans but they definitely are to your food.

Rice weevils are a small insect ranging between 1/16 to 1/8 of an inch long. They have been found to be between brown to black in color and can have spots on their thorax and abdomen.

As their name obviously suggests, they really enjoy rice, however, rice isn’t the only thing they enjoy. Rice weevils are known to eat dried beans, cotton, nuts, cereal, any wheat product, corn, flour, pasta, bread and other grain products found in most any home. Rice weevils are even known to go outside of the pantry to eat product not meant to be food like fabrics in clothing and furniture.

If you are concerned that you have rice weevils crawling around in your pantry, there is a way to clear them out. Here at Solutions Pest and Lawn, we know just how to get rid of these pesky bugs and can help you to clear your pantry of wheat bugs once and for all with our helpful advice and effective professional-grade products.


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How to Get Rid of Rice Weevil: Solutions' 4 Step Process:

Once you realize that your pantry has a rice weevil infestation, it actually is quite easy to get rid of these pantry pests. We here at Solutions Pest & Lawn recommend a control approach which includes a thorough and detailed cleanout of your pantry, applying chemical pesticides and discarding all food infested by the offending pest. Check out our simple to follow steps below to learn how to properly dispose of invading rice weevils in your pantry.

Step One:  Identify the source of the infestation and remove the product immediately from your pantry or storage area. We also recommend that all already opened food containers you have be stored in airtight containers made of hard plastic. By doing this step you can prevent further infestation. You will need to completely empty out your pantry and check EVERYTHING. Completing this step properly and being thorough in your approach is half the battle. For the best possible results in eliminating an infestation, we suggest tossing everything in your pantry, even unopened new containers. Don't leave anything to chance.

Step Two:  Once you have decluttered your pantry and removed unwanted foods and foods you feel are infested, vacuum and clean the shelves and surfaces of the pantry. If necessary, use caulking on the cracks and crevices of the shelves and apply fresh paint.

Step Three: Apply a residual insecticide spray. An easy to use aerosol like Novacide Flea & Tick Killer or CB PCO Insect Fogger are excellent options then follow up with an Insect Growth Regulator Gentrol Point Source IGR, which is also available in an aerosol spray and has a crack and crevice tip for easy application.

Step Four: Finally, use pheromone specific traps like Pro-Pest Pantry Traps to catch rice weevils that are moving around in your home and then regularly clean the pantry of any spills and clutter. By capturing the adults you will prevent them from laying eggs and creating a new generation of contaminators.

Following these steps carefully and being meticulous in your approach will ensure you that your rice weevil problem will be a thing of the past. Browse our rice weevil eliminating products below and as always you can contact us if you are in need of suggestions or advice, we are always available either via live chat, phone or email.


Learn More About The Rice Weevil

As you can see by our vast pantry pest section, there are a wide variety of pantry pests which can invade your homes or business and contaminate your food. Though some of the most common culprits in a pantry are Indian meal moths or flour beetles, rice weevils can be just as common in food storage spaces and also just as damaging.

Rice weevils are a tiny bug and are fairly easy to get rid of once they’re discovered, but the main issue they pose is that they reproduce quickly and have go through their life cycle in rapid fashion, meaning they can multiply in little time without intervention.

Female rice weevil begin laying eggs pretty much the moment they reach adulthood so once there is rice weevil activity in a pantry, a small outbreak can very quickly grow into a large infestation that will need to be addressed pronto.

Found throughout the world, Rice Weevils are a pest which can be controlled like many other pantry pests. Find the route of entry, discard infested food or belongings and treat with both residual insecticides and traps. The article below will cover this process in detail but if there is anything we don’t cover, give us a call or email with your questions and we’ll try to further assist.

Found all through the world, rice weevils are a pest which can be eliminated with the help of a well thought out pantry pest control program. Control can be successfully accomplished by locating the food source they have gathered in, dispose of the food items they have infested and apply correctly labeled bug sprays and traps.

Follow along as we learn about the rice weevil in-depth and go over the control process in detail so you can successfully accomplish DIY rice weevil control

Rice Weevil Appearance

Rice weevils are an extremely tiny bug, ranging between 1/16 to 1/8 of an inch long. They are usually colored brown or black and have a spotted thorax and abdomen. As obvious by the name they have been coined, they are frequently found infesting rice. Be that as it may, rice weevils still have a vast appetite for different pantry foods and will really eat just about anything they can get their hands on.

Rice weevils enjoy many different kinds of seeds, dried beans, cotton, nuts, cereal, any wheat product, corn, flour, pasta, bread and various other oats and grains found in a stored food area. However, rice weevils don’t just limit their diet to what they find in the pantry.

Rice Weevils will gladly consume cotton fabric and materials found in furniture and clothing as well as dried flowers and plants, and flower arrangements that are beginning to show age.

Surprisingly, rice weevils have even been found munching on Christmas ornaments, dried flowers which have been gathered and stored clothing. Rice weevils are also big fruit eaters as they have been found nibbling on pears, apples, grapes and other types of fruit.

Rice weevils are exceptional fliers and thus they may easily enter the home by flying in from outside, lured by the smell of food.

The Rice Weevil Life Cycle

Like many other insects, rice weevils go through a complete metamorphosis. Starting as an egg, hatching into a larvae, going to pupate and then reaching their final form in adulthood. Rice weevils begin their lives as an egg which may have been laid by an adult directly in a food source such as cereal or rice or some other grain. Once the egg hatches (which is usually within a couple of days), out comes the larvae resembling a tiny caterpillar.

It is as larvae that rice weevils are the most damaging. Once hatches out of the egg they begin to devour the food around them immediately. The rice weevil larvae will continue to feed for the next 1 to 3 weeks until it’s time to pupate, which they will they start to spin a cocoon to begin the pupation process

Pupation of the rice weevil takes between 1 to 2 weeks and after that the adult rice weevil will emerge from the cocoon. Unlike pantry moths and other pantry pests, rice weevils actually feed on food in the pantry nearly as much as they do in the larvae phase, consuming a large variety of different items.

Because they are good fliers and are small, rice weevils can practically travel to any part of the home with great ease and find all kinds of different things to munch on.
Female adult rice weevils will begin laying eggs within 3 days of emerging from the pupae state. It is reported that they can lay between 300-600 eggs during the 3 to 6 month duration of their lives so just one female can end up creating a massive infestation.

Due to rice weevils going through the life cycle in as quickly as a month, they can become a great problem in a short amount of time wherever they have established. If you believe your home or place of business has come down with a rice weevil infestation, there are a number of different tasks that need to be carried out to successfully get rid of them.

Preliminary Inspection and Sanitation For Rice Weevil Control

To begin the process of getting rid of rice weevils you must begin with a thorough inspection and clean up. Start by emptying all our your pantry cabinets, shelving and closets where you have spotted them or believe they have been active.

You will need to go through all your boxed food and check them all for traces of rice weevils. Any item where you see them needs to be disposed of immediately by sealing them in a plastic bag. This will help to contain them until your garbage picked up by the garbage man.

The smart thing to do if you discover an infestation is to throw away EVERYTHING you have in your pantry, so you can ensure that the rice weevils will be eliminated from your food.  This may not sound like an appealing option but you don’t want to leave any food item to chance. 

If you don’t want to throw out all your food, inspect everything (which will be time consuming). Open all your boxes, even ones that are brand new and unopened and check. If there are some that you aren’t sure about, place the item in a plastic bag and seal it. If there are rice weevils in the suspected item, they will try to escape after some time. In this case, toss the food item away immediately. If nothing comes out, you can safely assume that the food is not contaminated or infested.


The Best Methods of Chemical Treatment for Rice Weevils

Once the entire pantry has been emptied out and you have discarded the infested foods the rice weevils were in, you can then move on to insecticide treatments.  

We highly recommend prior to using any pest control products that you first vacuum the entire interior of your pantry as well as your cupboards, cabinets and all other previous infested areas that will be treated.

This helps by sucking up some rice weevil eggs and pupae that may be resting in a crack or crevice as well as any crumbs or grains that have spilled which can be food for a lingering rice weevil larvae.

When laying eggs, rice weevils utilize a secretion that is similar to glue which they use to protect their young, attaching them to surfaces so they won’t be displaced and close to food so when they’ll be hatched and ready to eat, the food is right there for them. Though vacuuming helps, vacuuming alone won’t solve your rice weevil problem.

Best Aerosol Spray To Treat Rice Weevils

After doing a thorough cleanup, vacuuming and sanitizing of the targeted areas, you can then move on to chemical control. There are a number of products which we recommend for rice weevil treatment, such as an aerosol spray which can easily get into those hard to reach corners, cracks and crevices.

The first option is Novacide Flea & Tick Killer. This product contains little to no odor and works quickly. Use Novacide directly by spraying them in your pantry, cupboards, under the sink and in closets if you’ve seen them trying to eat clothing and fabric. This aerosol spray also comes with a straw applicator tip which you can attach to spray those cracks and crevices where adults and larvae commonly hideout.

Keep in mind that rice weevils are very small, move quickly and hide really well when threatened. Also, since they’re able to fly, they can be difficult to find and kill on contact. That’s why this product has a residual effect. Once you spray, let the place air out and the product dry and after an hour you can place everything back in the pantry.

It may be wise to treat regularly every two weeks until you do not see any more rice weevil activity. One they are gone, you can use Novacide quarterly to keep them gone.

Now if you are  not sure where the rice weevils are hiding out, you could go with  CB PCO Insect Fogger. This fogging product can be set up in the pantry and will thoroughly cover all the areas where they are hiding that are hard to get to. You will need to open all cabinets and suspected areas and leave the home for a few hours as the fogging chemicals do their job and fumigate the area.


The Best Product For Treating Rice Weevil Eggs

Most of the insecticides we recommend will kill adult rice weevils, but not the eggs. For this you will need an insect growth regulator. These work as a form of birth control, putting a halt on the development process so eggs don’t hatch and larvae doesn’t develop. We recommend Gentrol Aerosol Insect Growth Regulator.

Now its important to understand how Gentrol works. An IGR does not kill adult weevils, it only targets rice weevil eggs and larvae. It is essentially not a killer of eggs, it just makes it so they don’t develop and function normally. This is done so be Gentrol mimicking a vital protein the young weevils need to grow and disrupts the life cycle process. This disruption results in the stalling of their development, leading to death and making it so a new generation of rice weevils isn’t produced.

Using Traps To Capture Rice Weevils

Finally, we highly recommend installing Pro-Pest Pantry Moth & Beetle Traps for rice weevils. These traps contain powerful pheromones or sex attractants to lure adult rice weevils towards it. Once the unsuspecting rice weevil crawls or flies toward the trap, glue like adhesive will capture them and they are toast.

Install these traps after you have treated the area with insecticide. This is also a helpful way to monitor the rice weevil infestation. If you’ve done a good job spraying, the traps may only capture a few rice weevils. If you see a lot on these traps, you may have missed a spot and should retreat the area.

Place these traps in the back of each pantry shelf or cabinet. 1 should be enough per shelf or cabinet. These products last for 1 to 2 months so you may need to replace them until you no longer have a rice weevil problem.

Prevent Rice Weevils With IPM Practices

Once you have eliminated the rice weevil problem, don’t think that you will never encounter a pantry pest ever again. Rice weevils are quite a persistent pest and they may make a comeback.

To prevent this from happening make sure to don’t have too much food cluttering your pantries and cabinets. Also make sure to wipe up and clean any spills and toss away old food items that you haven’t been eating. You can spray the products we’ve suggested from time to time as a preventative measure as well as set traps to monitor future activity.

As long as you maintain cleanliness and are diligent about checking your food items, even ones you newly bought from the store, you will keep the rice weevils away for good.




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