RICE WEEVIL CONTROL


There are many pantry pests which can infest homes and businesses. Though Meal Moths, Grain Beetles and Flour Beetles are very common, Rice Weevils are just as likely to be the unwanted insect in such areas. Rice Weevils are small and easy to kill, but they can complete their life cycle quickly. Adult females will start laying eggs almost immediately so once you have some activity in a structure, it is sure to blossom into a problem which will need attention. 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.

 

Other pantry pests:        ANTS        BLACK LARDER BEETLES        CABINET BEETLES        CIGARETTE BEETLES        COCKROACHES        CONFUSED FLOUR BEETLES         DRUGSTORE BEETLES        FRUIT FLY        GRAIN BORERS        HIDE BEETLES        INDIAN MEAL MOTHS        LARGE ROACHES        RED FLOUR BEETLES        SAWTOOTH GRAIN BEETLES

All information:       PEST ARTICLES

 

RICE WEEVIL BIOLOGY

Rice weevils are a small insect, about 1/16 to 1/8 of an inch long. They are mostly brown to black in color and can have spots on their thorax and abdomen. As the name implies, they like rice. However, Rice weevils can be found eating just about anything in the home. More common food stuff they like include seeds of all types, dried beans, cotton, nuts, cereal, any wheat product, corn, flour, pasta, bread and other grain products found in any home. But their tastes don’t end in the pantry. Rice Weevils will readily feed on cotton fabric found in furniture and clothing. Since they love dried flowers and plants, decorative ornaments found in the home such are wreathes and dried flower arrangements can harbor and feed local populations. It is not uncommon to find them living in or on Christmas ornaments, dried flower collections and stored clothing. Furthermore, adults love apples, pears, grapes and other fruits found in and around homes. Since they are great flyers, it is not uncommon for them to fly their way into any home hot on the scent of some fruit or grain.

Rice weevils start their life as a small caterpillar like larva which hatches on some type of food like a wheat grain, seed or nut. Eggs will hatch within a couple of days of being laid and feed immediately. Feeding will occur for 1-3 weeks and then larva will spin a cocoon in which they will pupate to an adult. Pupation takes about 1 week at which time adults will emerge. Rice weevils present more of a nuisance than some other pantry pests because adults feed just as much as their larva preferring a wider range of things to eat. Since they fly well and are small, rice weevils can move throughout the home easily finding all kinds of things to eat. Adult females wills start laying eggs within 3 days of emerging from their pupa cocoons. Most will lay 300-600 eggs during their 3-6 month life span. Since rice weevils can grow from egg to egg laying adult in less than one month, they can be a formidable foe in and around the home. If you suspect you have rice weevil activity, there are several things you must do to knock out current activity and insure new populations won’t quickly emerge.

 

RICE WEEVIL CONTROL PROGRAM

Here are the guidelines and treatments which are needed.

1) First, empty all cabinets, shelves and closets where they have been seen or thought to exist. Any food stuff which has them active must be discarded in sealed plastic bags. This will help contain them until the garbage is picked up. If you are not sure if something has activity, store it in a plastic bag and check it every week. If there are any Rice Weevils in it they will try to get out within a few weeks. If some are found, throw it away immediately. Since this pest is temperature tolerant, don’t waste your time trying to freeze adults, eggs or larva. Though you can certainly kill some of them by freezing, you’ll need to keep the material stored in sub zero temps for a week or two to have a significant impact. The average refrigerator/freezer found in most homes gets down to just 20-25 degrees Fahrenheit. In other words, they aren’t nearly cold enough to provide a fast and complete kill. Plus, do you really want to be feeding your family something that’s laced with dead rice weevils? Probably not. In most cases, it’s best to discard anything found to have live activity. This insures you won’t be feeding family members a mouthful of bugs.

 

RICE WEEVIL TREATMENTS

Once the infested product is discarded, you’re just about ready to treat. We always suggest that you first vacuum of all the closets, shelves, cupboards, pantries and baseboards about to be sprayed. This definitely will remove eggs which are too small for the eye to see. Rice Weevils lay eggs with a glue like excretion which helps to attach them to surfaces where food is likely to be available. This helps to keep them in place and vacuuming will help to remove some.

 

RICE WEEVIL AEROSOL SPRAY

D-Force Aerosol2) Once everything has been removed from the cabinets and they have been vacuumed, you can start treatments. The first product to use is DFORCE AEROSOL. This comes in a spray can with a straw attachment which makes it ideal for applying to cracks and crevices where both adults and larva like to reside. Be sure to treat all your cabinets too – not just where you think beetles may be hiding.

D-Force AerosolD-Force:  http://www.bugspraycart.com/insecticide/aerosol/d-force-14-oz-aerosol

 

Rice Weevils are small, fast and quick to hide when ever people are around disturbing where they have been feeding. Many will go unnoticed and missed so it is best to treat every cabinet to be sure you get proper coverage. Let the treatment dry for 1 hour and all dishes and food stuff can then go back away without hazard to people or pets.

PT-Phantom AerosolNow if you want something odorless, PT-PHANTOM would be the better choice. It’s used just like the Dforce but it has virtually no odor and it goes on “dry”. This makes it ideal for sensitive areas like cabinets and other kitchen areas.

PT-Phantom AerosolPhantom Aerosol: http://www.bugspraycart.com/insecticide/aerosol/pt-phantom-17-5oz

 

RICE WEEVIL SPRAY

Pump SprayerD-Fense SC InsecticidePermethrin 103) Now that the cabinets and pantry areas have been treated, you may have to treat other areas of the home if activity has been noted. Laundry rooms, garages, basements and other areas where pet food and grain products like grass seed are stored are prime locations for Rice Weevils to reside. One or two rooms like this will be easy to treat with Dforce but if you have several which need an application, get some of our PERMETHRIN or DEFENSE SC will be much more effective and thorough for large applications. Apply either with one of our PUMP SPRAYERS which will allow you to get good coverage quickly. Focus in on baseboards, moldings and floor joists if accessible. Since rodenticide is one of their favorite foods, be sure to check any bait placements you have done in the last couple of years. Attics are common areas where Rice Weevils thrive and then find their way inside living areas. If you have an attic with rodenticide, be sure to remove any suspected of feeding Rice Weevils and treat with Permethrin to insure migrating adults won’t be able to find their way inside.

Permethrin 10Permethrin 10:  http://www.bugspraycart.com/insecticide/liquid/permethrin-10

D-Fense SC InsecticideD-fense SC: http://www.bugspraycart.com/insecticide/liquid/d-fense-sc.html

Pump SprayerPump Sprayer: http://www.bugspraycart.com/good/pump-sprayers

 

RICE WEEVIL EGG KILLER

Nyguard IGRFor severe infestations, add some NYGUARD GROWTH REGULATOR to your tank mix. It can be used with either the Permethrin or D-Fense at the same time, in the same sprayer.

Nyguard won’t affect adult weevils but it does impact weevil eggs. Now nothing can technically “kill” weevil eggs but Nyguard will prevent the hatching larvae from developing normally. Basically Nyguard mimics a very important protein the young weevils need during their growth. And when over exposed to this protein, they won’t grow right. This interruption causes them to stall during their development, mutate and then die. This in turn will help end the infestation.

Nyguard will affect weevil eggs for several months so for bad infestations, adding it to your treatment program is smart – especially if the problem is in a large home, restaurant or food processing plant.

Nyguard IGRNyguard: http://www.bugspraycart.com/insecticide/igr/nyguard_igr_140_ml.html

 

RICE WEEVIL TRAPS

Pantry Pest Trap 3 PK4) Now once you’ve treated all cabinets, pantries, rooms and baseboards where adults may be hiding, install some of our RICE WEEVIL PHEROMONE TRAPS in any area where you have or suspect activity. These traps use strong pheromones or sex attractants to lure adults. Once they crawl or fly into the holding tray, the thick catching oil will hold them for good.

Pantry Pest Trap 3 PKTrap: http://www.bugspraycart.com/traps/pheromone-and-food/3pk-cf-rf-k-rw-st-pp

 

Set these traps in the back of any shelf or cabinet area. They are quite discreet and easy to conceal. However, the beetles will assuredly find them. Be sure to place some in any room where activity has been noted and as a general rule, try to get at least one per shelf.

These traps will remain active for 1-2 months quite well. However, you will need to replace them once they fill with insects so be sure to inspect them weekly if you have had a lot of activity.

XLure Beetle TrapNow if you’ve been seeing rice weevils out in the open foraging on kitchen counter tops or the floor, the XLURE TRAP will be better suited for these “out in the open” problem spots. The Xlure trap has a protective, hard plastic body to the trap and the catching gel, bait and pheromone is located safely inside out of sight. Rice weevils will readily find their way inside and get caught but because of it’s design, the Xlure traps are best suited for trap placements that need to be done out in the open.

XLure Beetle TrapXlure Trap: http://www.bugspraycart.com/traps/pheromone-and-food/xlure-beetle-trap

 

Rice Weevils can be a persistent pest once they are established in the home. To break their life cycle, you will need to remove any food which is infested. Next, clean and vacuum all cabinets or closets where they have been found. Treat with Dforce Aerosol to kill off hatching larva and migrating adults. The Dforce will provide several weeks of protection should any new eggs hatch or if any new adults come into the area. If you have them throughout the home, treat with the Permethrin to get better coverage. Finally, set some of the Pheromone based traps out in cabinets and pantries where activity has been noted. Be sure to keep the traps fresh so they are always helping by catching adults before they mate and try to reproduce. This program will help to break the cycle so that it will eventually run it’s course and disappear.


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