Confused Flour Beetle and Red Flour Beetle
Confused Flour Beetle
The confused flour beetle and the red flour beetle
are very similar in appearance and can be most easily
distinguished by examining the antennae:
the antennae of the red flour beetle end abruptly in a three-segmented club, while the confused flour beetle's antennae gradually enlarge towards
the tip, ending in a four-segmented club.
The red flour beetle is primarily a pest in southern states. The adults are strong fliers
The confused flour beetle is primarily a pest in northern states. The adults do not fly.
Adult beetles of these two species have shiny, reddish brown bodies that are about 1/7 inch long, flattened, and oval.
The small size of the confused flour beetle enables it to work its way inside many sealed containers.
These beetles have a very wide food range including cereals, grains, spices, grain products, shelled nuts, dried fruit, chocolate, drugs, peas, beans and other similar materials. The biologies of these two species are very similar; their average life span is about 1 year, but some have been known to live almost 4 years.
The females lay their small, white eggs loosely in flour or other food material.
The eggs, which are coated with a sticky secretion, become covered with flour or meal and readily adhere to the sides of sacks, boxes, and other containers.
They hatch into small worm-like larvae that are slender, cylindrical in appearance. When fully grown, the larva is3/16 inch long and white, tinged with yellow.
At this stage, it transforms into a small pupa. At first white, the pupa gradually changes to yellow and then brown, and shortly afterward transforms into a beetle.
In summer, the period from egg to adult averages about 6 weeks.
Recommended Control for Pantry Beetles
With a "beetle" or "weevil"type of panty pest you should use:
InVite Multi-Lure Oil - five pheromones for various pantry beetles and moths combined in gelled food oil base.
Contains: One tube and 6 unscented glue boards
Target Insects:
Beetles : Cigarette, Warehouse, Khapra, Flour, Saw-Toothed Grain, Drugstore and other beetles.
Moths: Indian Meal, Almond, Tobacco, Mediterranean Flour, Cacao, Raisin and other Ephestia Moths
MicroCare Aerosol
a residual pryethrin aerosol ,with a crack and crevice tip , sprayed in
the cracks and crevices, to kill the adult beetles .
You will need 2-4 treatments spaced about 3 weeks apart, due
to the nature of their cycles.
D-Fense SC Insecticide
Use one gallon of finished product per 1,000 sq. ft. to
allow for proper penetration.
Retreat at least two more times, at intervals of 3 weeks.
When spraying rugs or area rugs it would be advisable to spray
underneath the underside of the rugs a couple feet or the
entire underside.
Although larva and adults may be easily killed, eggs and pupa
are not, a complete vacuuming is important.
The first thing needed to done is the elimination of the
source of infestation.
You should make a thorough inspection of infested premises
to find all sources of infestation
- In private residences the pantry pest such as the Indian
meal moth is usually brought in products from the grocery
stores. It is usually just in one area, but can spill over
into other areas.
Prevention and Sanitation:
- Place exposed food in containers with tight-fitting lids
.
- Periodic cleaning of the shelves helps to prevent infestation
of stored food products by pantry pests.
Certain pantry pests need only small amounts of food to live and breed. - Some infestations of packaged food originate in the food-processing
plant or warehouse.
Broken packages should not be purchased, or should be exchanged for unbroken packages when discovered, for the chance of these being infested is greater than for perfectly sealed ones. - Do
not mix old and new lots of foodstuffs.
If the old material is infested, the pest will quickly invade the new. - If you are unsure about an item being infested, place it
in a plastic bag where you will be able to catch anything
that emerges.
If you find the pantry pest accumulating in the bag, you know the foodstuff is contaminated and needs to be discarded.
To insure any item is pest free, store it in these clear bags for at least a month. Sometimes it takes even longer for the adults to emerge. - Infestations are most likely to occur in packages that have
been opened for the removal of a portion of the contents
and then left unsealed for long periods.
Some of the pests may find their way into other food packages, but even those in a single package may become so numerous that large numbers may find their way into every suitable material in the home, and will eventually crawl over floors, climb up walls, and gather about windows. - Clean old containers before filling them with fresh food.
They may be contaminated and cause a new infestation.
- Make
sure that cabinets and storage units are tight and can be
cleaned easily.
- Store bulk materials, such as pet foods, in containers with
tight-fitting lids.
- Keep storage units dry. This is important because moisture
favors the development of pantry pests; dryness discourages
them.
- Some pantry insects breed in the nests of rodents and insects
and may migrate from these into homes. Eliminate any nests
found in or near the home.
-
Pantry pests can also breed in rodent baits. Be sure to
frequently check and discard infested baits.
Controlling Temperature:
When packages of food are found to be infested with moths or beetles, either low or high temperatures may be used to control the infestation. Insects are cold-blooded; their body temperatures closely follow that of their environment.
The most favorable temperature for most pantry pest is about 80°F. Above 95°F or below 60°F, reproduction and survival is greatly reduced.
When temperatures are lowered, insect activity decreases until all activity stops. The quicker the drop in temperature, the quicker the kill.
Although insects will be killed, their bodies will remain in the food unless sieved out.
An exposure of 2 to 3 days to temperatures of 5°F or lower kills the more susceptible stages (larvae and adults), but eggs require longer to kill (3 weeks).
An alternative is to freeze the food for a week, remove it from the freezer for a few days, and then refreeze it for another week.
IF YOUR CONCERN IS FOR PEST MANAGEMENT IN A COMMERCIAL BUSINESS,PLEASE
CALL FOR ADDITIONAL INFORMATION.-1-800-476-3368