What Is a Weevil and How Did It Get in My Food?

weevils in house

Phorid flies are small black flying bugs that resemble fruit flies or gnats. These tiny black flies have a humpbacked appearance, dark gray, black, or brown bodies, and translucent wings. A distinguishing feature is their erratic flying behavior close to surfaces. Drain flies are small grayish-black flying bugs with a fuzzy appearance that fly near sinks and drains.

Black Carpet Beetles (Attagenus unicolor)

Tom has built and remodeled homes, generated his own electricity, grown his own food and more, all in quest of remaining as independent of society as possible. Now he shares his experiences and hard-earned lessons with readers around the country. Soak cotton balls with it and then put them in a sachet or wrap them in a coarse cloth and leave it anywhere that you need some weevil repellent. Eucalyptus oil is another known and proven weevil repellent and one that happens to smell great. You have another way to use eucalyptus oil besides wiping it on.

Ways to Prevent Weevils in Your Home

Instead, the tiny bugs lay eggs in the slime found in sewers and drains. While they do not carry disease, they can be persistent nuisances because of their numbers and the difficulty of eliminating them. First, look for evidence of the nasty pests—small dark reddish-brown creatures about the size of an apple seed. This article refers to all tiny household pests as black bugs, irrespective of whether they belong to the order Hemiptera or not.

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Seal Up All Outside Cracks, Crevices, and Entry Points

Pantry bugs, also known as kitchen pests, are a group of black bugs or dark brown beetles and weevils that infest stored dry foodstuffs. The tiny black bugs are found in pantries, kitchen cabinets, and other food storage areas. Adult weevils look for shelter when it is hot and dry outdoors. Storage areas with a lot of spilled foods are more susceptible to weevil infestations, as well as those in which many partially used containers are stored.

weevils in house

There are actually thousands of different weevil species, but only a few species are interested in the contents of your pantry. To keep your pantry clean, regularly empty the shelves and wipe them down with a microfiber cloth and hot water. Take care to get into the corners where crumbs can hide more easily. Then, vacuum the floor well to pick up any remaining crumbs. In addition to keeping your pantry clean, give the same level of attention to the rest of your kitchen and any other areas where food is stored or eaten. This will kill any weevils that may be hiding before they get the chance to cause serious damage.

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Be sure to also wipe down each of your containers as you return them to the pantry. There are a lot of different remedies to fend off weevils, from chemical to hiring natural predators (parasitic wasps especially love weevils). However, the best overall remedy is to use a neem soil soak. There’s a hidden war in the insect world, a war of good and weevil, in which the pantry is often a battlefield.

weevils in house

Set Up Traps

The good news is that this isn’t very common compared to even 100 years ago when food safety regulations were far more relaxed. But many of the ones we’re looking at today are far more destructive to the average consumer. For these species, the targets are fruit, nuts, and cereal grains. For example, never buy a cereal grain product that has an open package. If you see powdery debris leaking from the box, it may well be contaminated by weevils or some other bug. Here’s how to get rid of weevils and everything you need to know to identify and prevent them.

Empty and disinfect your pantry

Even if you meticulously clean your kitchen, you can open your cupboards one day and realize that they are swarming with small insects. Keeping your pantry clean can also go a long way in preventing a weevil infestation. Spills on the shelves or the floor will serve as an invitation for these pests to come, mate, and start laying their eggs. For this reason, it is essential to quickly clean up messes, rescind that invite, and ensure that weevils don't find your pantry a welcoming space. It won't do much good to have your dry goods in airtight containers but leave a pile of spilled oats or rice covering your shelves.

How to Kill Weevils with White Vinegar

In fact, the high heat of a good steam vacuum can make quick work of weevils. It can even kill any eggs that have been laid inside food debris. They also feed on grains such as rice, so you might bring them into your home if you buy grains infested with weevils. Black widow spiders are some of the most dangerous black bugs in houses. The biting spiders are identified by their distinctive shiny black body, reddish hourglass marking, and long black legs.

The oval-shaped wheat weevil (AKA grain or granary weevil) is a uniform reddish-brown and feeds primarily on cereal grains. They’ll attack maize, wheat, and many other grains, with their adult size varying based on the size of the grain they hatched inside of. These are similar in appearance to rice weevils and at one time were thought to be the same species. Maize weevils are 1/8th inch larger than rice weevils, and their grain of choice is corn, though they also eat rice and wheat. The black carpet beetle is a small, oval-shaped bug with a shiny black body and hard shell. The tiny black beetles are slightly rounded, and adult carpet beetles measure 0.13” to 0.20” (3 – 5 mm) long.

You should also find out how much they'll charge, how many treatments will be needed, and whether they offer guarantees for their services. If you haven't already discarded cardboard packaging, now is a good time to do so as well. Remember, a few weevils may be hiding along the cardboard, and could start a new infestation if returned.

Identifying small black bugs can be challenging because the bugs can be as tiny as poppy seeds. Then note distinguishing features, such as wings, antennae, or patterns on their bodies. When buying dry goods, check the seals and the bottom of the bags for evidence of pests such as webbing, dry dust-like residue or tiny holes. When unpacking the groceries at home, put food into airtight containers. To proactively prevent weevils from getting into your food, try using garlic cloves and bay leaves since these are natural repellents to weevils.

However, in the fall of the year, these plant-feeding weevils start looking for a place to spend the winter. Nothing is worse than reliving an insect infestation after going through all of the efforts to eliminate them. Using preventative methods is key to keeping your food storage area clean and weevil-free. Follow the instructions on your pesticides and spray the solution as directed along each shelf’s cracks and crevices. Clean the area with rags and dry each section with paper toweling. If you have a severe weevil infestation and you’re confident that there is no chance of contaminating your food, try treating the pantry with a commercial insecticide.

Weevils are a nuisance, though they aren’t often dangerous to people or pets. Unfortunately, by the time you encounter them, there is already an infestation. Outdoors, weevils eat the leaves of trees, shrubs and plants.

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