GRAIN BORER CONTROL


Grain Borers can be found in most any part of the home. There are two main species of this insect; the Lesser Grain Borer and the Larger Grain Borer. As their name indicates, they like to “bore” into grain and grain products. This boring will many times leave nothing but empty shells where they’ve fed.

 

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Grain bins, storage bags, boxes and just about anywhere pantry type food is processed are all environments where grain borers will thrive. Once established in food processing facilities, grain borers will inadvertently packaged and shipped to stores where consumers will ultimately buy and bring them home.

Once in the home, some will eventually migrate looking for anything on which to lay eggs. And since grain borers can eat just about anything found in the home, it’s not likely they’ll “starve” to death and disappear. So if you find grain borer activity in any part of your home, control measures should be taken to insure active populations are eliminated.

 

GRAIN BORER BIOLOGY

Grain borers are found all over the world. Closely related to Powder Post Beetles, grain borers are able to eat cellulose products like books, boxes, furniture and anything made of wood. However, they prefer grain like wheat, corn and sorghum.

The two species of grain borers are very similar in look and biology. The main difference is their size.

Lesser Grain Borers are about 1/8 of an inch long; Larger Grain Borers are about 1/4 of an inch long. Both will readily infest and thrive on the same types of food commonly found in the home.

 

GRAIN BORER FOOD

Grain borers can feed on just about anything. Common food items include nuts, wheat products, pasta, pet food, rice, cookies, dried fruit, corn, books, boxes, dried flowers and many other “natural” products. If brought home in a package, adults will most likely stick around if the eating is good. But if the main food they came in on is depleted, they can easily relocate to a new area from there, start laying eggs on anything they can eat.

Adult female grain borers will lay 300-500 eggs over her life time and since she can fly quite well, it is not uncommon for infestations to appear randomly throughout the home. Eggs will hatch in a week or two after being laid and larva will immediately begin to feed on whatever they can find close to where they hatch.

Most will go through 2-4 molts before pupating into adults and though the average time this process will take is about 60 days, it can happen in 30 days or less. This ability to rapidly populate and the random nature in which it can occur is why you should take control measures to control any activity as soon as it is identified.

 

GRAIN BORER TREATMENTS

Here are guidelines and treatment schedules to follow when you have found grain borers in the home.

1)  First, empty all cabinets, shelves and closets where you’ve seen or thought activity might exist. Any food stuff which has activity should be discarded in sealed plastic bags. This will help contain them until the garbage is picked up.

If you are unsure if something has activity, store it in a plastic bag and check it every few days. If any grain borers are in the item, they’ll try to emerge within a few weeks. And if some are found, throw the item away immediately.

Since grain borers are temperature tolerant, don’t waste your time trying to freeze adults, eggs or larva. This approach will certainly kill some but too many will continue to live and these survivors will quickly repopulate. So don’t try to save infested food; throw it away.

Lastly, be sure to vacuum all your closets, shelves and baseboards which have been emptied. This will help to remove eggs which are too small to see. Grain borers lay eggs with a glue like excretion which helps attach them to surfaces where food may be available. Vacuuming will insure none of these hiding eggs are missed or overlooked.

 

GRAIN BORER AEROSOL SPRAY

D-Force Aerosol2) Once everything has been removed from the cabinets and you’ve vacuumed them out, you can start treating. 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. This is important because it’s a common area where adults and larva like to hide.

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

 

Be sure to treat any area like this you have – not just where you think beetles may be hiding. Grain Borers are small, fast and quick to hide when ever people are around – especially if you’re disturbing where they’ve been feeding. So in the process of cleaning and removing items, some have surely slipped out of sight and treating with an aerosol like Dforce will provide that extra bit of protection.

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

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

 

Which ever you apply, let the treatment dry for 1 hour and all dishes and food stuff can then go back away without hazard to people or pets.

 

GRAIN BORER LIQUID SPRAY

Pump SprayerDefense SC3) Now that the cabinets and pantry areas have been treated, you may have to treat other areas of the home if activity has been seen. Laundry rooms, garages, basements and other areas where pet food and grain products like grass seed are stored will be prime nest locations and shouldn’t be overlooked. One or two rooms like this will be easy to treat with Dforce but if you have several which need treatment, get some DEFENSE SC. Apply it with a PUMP SPRAYER and focus on baseboards, moldings and floor joists if accessible.

Defense SCD-fense SC: http://www.bugspraycart.com/insecticide/liquid/d-fense-sc.html

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

 

Since rodenticide is one of their favorite foods, be sure to check any such bait placements you may have done in the last couple of years for mice or rats. Attics are common area where grain borers thrive and then find their way inside living areas. If you have an attic with any kind of rodenticide placements, this would be an important area to inspect and possibly treat.

 

GRAIN BORER TRAPS

Large Grain Beetle Traps4) Now that you’ve treated all the cabinets, pantries, rooms and baseboards where adults may be hiding, install some GRAIN BORER PHEROMONE TRAPS. These traps use strong pheromones or sex attractants to lure adults. Once borers crawl or fly into the holding tray, the thick catching oil will hold them for good.

Large Grain Beetle TrapsTraps: http://www.bugspraycart.com/traps/pheromone-and-food/large-grain-beetle-traps

 

Set the traps in the back of any shelf or cabinet area. They’re quite discreet and easy to conceal. However, borers will easily find them. Place out at least one trap per shelf. The traps should remain active for 1-2 months but replace them if they fill with insects.

XLure Beetle TrapNow if you’ve been seeing grain borers out in the open foraging on the floor, the XLURE TRAP will be a better suited trap to deploy. The Xlure trap has a protective, hard plastic body and the catching gel, bait/pheromone is located safely inside. Grain borers will readily find these traps and get caught but because of it’s design, the Xlure are best suited for placements that need to be done in the open.

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

 

Grain borers can be a persistent pest once established in the home. To break their cycle, you’ll need to remove any infested or suspect food. Next, clean and vacuum all cabinets or closets where they’ve been found. Treat with these areas Dforce or Phantom to kill off hatching larva and migrating adults. This treatment will provide several weeks of protection should any new eggs hatch or if any new adults come to the area.

If you have activity throughout the home, treat with Permethrin to get better coverage. Finally, set out traps in the cabinets and pantry areas where activity has been noted. Be sure to keep the traps fresh so they’re always helping by catching adults before they mate and try to reproduce.


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