
Color:They are usually dark-colored (brownish to black).
Size:Many are slender or oval-shaped insects. Depending on the species, weevils range in size from about 3 mm to over 10 mm in length.
Weevils have been known to find their way into the home from outside (in the form of adult beetles or moths depositing their eggs in a food source). However in most cases, they are already present in produce, originating at the processing plant, a warehouse, in a delivery vehicle or even at the store of purchase.
Adult wheat weevils when threatened or disturbed will pull their legs close to their bodies and feign death. Female weevils can tell if a grain kernel has had an egg laid in it by another weevil. They avoid laying another egg in this grain. Females chew a hole, deposit an egg, and seal the hole with a gelatinous secretion. This may be how other females know the grain has an egg in it already. This ensures the young will survive and produce another generation. One pair of weevils may produce up to 6,000 offspring per year.
weevils only eat plants, nuts, seeds, grain, fruits, roots, etc.
Weevils can be very destructive, depending on the species. Crop and agricultural destruction comes from the weevil’s eating habits combined with its reproductive habits. For example, grain weevils – also called wheat weevils – can cause devastating economic loss to stored grain by eating it.
And due to its reproductive habits, the boll weevil almost single-handedly destroyed the southern cotton industry.
This weevil lays its eggs inside the bolls of cotton and when the eggs hatch, the young weevils eat their way out, destroying the crop.
Some species of weevils feed on the same foods that humans do. These pantry pests can include the grain weevil, rice weevil, cowpea weevil, strawberry root weevil and the bean weevil.
Many different types of weevils can get in your home, including some of the most common weevils around your property and garden: the apple blossom weevil, leaf weevil, pea weevil, strawberry blossom weevil and the vine weevil.
When most types of weevils get into your home, they will seek out food. Depending on what they eat, this can be your stored food or the plants inside your home. It isn’t uncommon to find weevils in bags of rice and flour, boxes of cereal or in similar types of foods such as dried noodles and pasta. Suffice it to say, you don’t want weevils in your home or in your food.
Cleaning and Improving Your Pantry
- Find the source of the weevils.
Although pantry pests can fly, they usually like to stay near their food source. If you've noticed small reddish brown beetles, weevils, in your flour, they may also be in other foods in your pantry. You should also check for weevils near your pet's food dishes since this may be their source of food.
- Cereals and grains (oats, rice, quinoa, bran).
- Crackers.
- Spices and herbs.
- Dried pasta.
- Dried fruit.
- Chocolate, candy, and nuts.
- Dried peas or beans.
Preventing Weevil Infestations
Manufacturer Recommended Products And Treatment For Weevil Control
Pests need food, water, and shelter. Often the problem may be solved just by removing these key items. Before even thinking about chemical pest control, it is important to be aware of
Conducive Condition | Recommendation | |
1 | Tree branches on house | Keep tree branches away from house to reduce pest access |
2 | Firewood next to foundation | Keep firewood away from house to reduce pest harborage |
3 | Debris on crawlspace/next to foundation | Remove wood debris to reduce termite ha rborage area |
4 | Excessive plant cover, stump, etc. | Providing spacing between plant cover and structure |
5 | Soil above the foundation Ii ne | Keep soil below top of foundation to reduce harbo rage areas |
6 | Wood-to-ground contact | Keep soil from touching wood to eliminate termite access |
7 | Debris on roof/full gutter | Keep gutter & roof free of debris to reduce insect harborage |
8 | Standi ng water near/under structure | Eliminate standing water to reduce pest harbo rage |
9 | Mo isture problem under structure | Increase ventilation to reduce pest harbo rage area |
10 | Openi ngs at plumbi ng & electronics | Seal opening to reduce pest access |
11 | Excessive gaps at windows/doors | Seal gaps to reduce pest access |
12 | Lea ky plumb ing fixtures | Repair to reduce moisture for pests |
13 | Keep garbage cans covered | Covered to reduce attraction of insects of vertebrate pests |
14 | Mo isture damage wood | Repair rotten or damaged wood to reduce insect harborage |
15 | Grocery bags stored improperly | Seal paper sacks in containers to reduce i nsect ha rborage areas |
16 | Pet food unsealed or left out | Keep pet food in sealed containers and unavailable to pests |
17 | Excessive storage conditions | Keep storage areas uncluttered and manageable |
18 | Debris below kick plates | Remove kick plates to reduce rodent harborage |
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