How do weevils start?

The main cause of weevils is improperly stored foods. They can also enter your house through cracks in the walls or come in food packaging. The female adult weevils dig a small hole into the seed or kernel and lay eggs inside.


How do weevils develop?

All three types of weevils lay eggs by boring a small hole in a grain seed and laying a single egg. The tiny larvae, legless, humpbacked worm white in color, develop entirely inside the shell of the seed, transforming into the pupa which then emerges and leaves the seeds as an adult insect.

Where do weevils come from in my house?

Weevils enter buildings by crawling through cracks or openings around foundations, doors and windows. They do not harm people or pets, or damage buildings or property, or infest food products. They are a temporary nuisance.


How do I permanently get rid of weevils?

Steps for Getting Rid of Weevils in Your Pantry
  1. Step 1: Clean Out Your Pantry. To fully remove the pantry weevils and prevent a future infestation, remove all unsealed dry foods from your pantry shelves. ...
  2. Step 2: Freeze Salvageable Items. ...
  3. Step 3: Deep Clean the Pantry. ...
  4. Step 4: Use an Insecticide.


How do weevils get into sealed containers?

Weevils can chew through cardboard and plastic, which means they can also get into unopened packages of food. Get rid of excess food packaging such as cardboard boxes if the food is in an airtight bag that hasn't been contaminated. Weevils can hide in packaging and re-emerge later.


How to Get Rid of Rice Weevils (4 Easy Steps)



Can weevils get into Ziploc bags?

According to thekitchn.com, the author states, Due to past insect problems, we're diligent about storing all foods in glass jars or plastic zip-top bags. Unfortunately, grain weevils (Sitophilus granarius, also called granary weevils or wheat weevils) can chew through paper and plastic packaging.

What are 3 potential options to get rid of the weevils?

How to Get Rid of Weevils
  • Dispose of compromised foods. Discard any infested food items—like flour, rice, or pasta—where you've found weevils. ...
  • Vacuum the area. Clear out the kitchen cabinets or pantry shelves where you found the weevils, and vacuum the area. ...
  • Wipe down surfaces.


How do you keep weevils from coming back?

Top 8 Steps To Keep Weevils And Bugs Out Of Food
  1. Get To Know Weevils. ...
  2. Keep Your Kitchen & Pantry Clean. ...
  3. Seal Any Possible Weevil Entry Points In Your House, Especially The Pantry. ...
  4. Check The Foods You Buy. ...
  5. Store Foods In Airtight Containers. ...
  6. Throw Away Infested & Open Food Packages. ...
  7. Use Repellents. ...
  8. Throw Out Trash Immediately.


Where do weevils nest?

The attic, the garage and the crawl space are also common winter hiding places for weevils. These weevils might spend the winter without being seen by the homeowner. However, some weevils find their way into the living space of the home. They might come through a crack in a wall or a space next to a pipe.

What repels weevils?

"Cloves and bay leaves can act as natural repellents to weevils. Place a few bay leaves around your pantry and kitchen to ward off these pests, and position several [fresh] cloves of garlic near your food storage supplies," Foster says. "Also, mix one tablespoon of white vinegar with one cup of water.

Should I worry about weevils?

The truth is, weevils are NOT harmful to humans. Accidentally eating them along with your food does not cause any ill effects. What could happen is that they can simply add a different crunch to your food when eaten, something unpalatable even? Food would also not look appealing at all with some weevils as garnishing.


Do weevils spread fast?

Weevils, also known as flour bugs or long-snout bugs, infest flour, rice, cornmeal, and other dry goods in the pantry. Several types of weevils can multiply quickly and spread throughout your kitchen and pantry, so it's essential to take steps to control weevils as soon as you spot them.

Why is my house full of weevils?

Why do I have weevils in my house? Adult weevils will enter your home through cracks or openings around foundations, doors and windows. Most often, weevils will look for shelter when the weather becomes too unbearable for them, especially when it's hot and dry outside.

Are weevils already in flour?

If you see flour bugs, they were already there when you bought it. The female weevil lays eggs in the wheat kernel and it can sometimes survive the milling process. The eggs will hatch if they're in warm or humid conditions, or have reached their maturity. The flour bugs eat the grain and then seek to mate…


How long does a weevil live for?

On average, adult weevils have a lifespan of two to three months, during which they mate and lay eggs multiple times. There are also a few species of weevils that are parthenogenetic, which means they can produce eggs without mating.

How fast do weevils multiply?

Life Cycle

The adult female rice weevil lays an average of 4 eggs per day and may live for four to five months (producing 250-400 eggs). A single generation can be completed in around 28 days. The eggs hatch in about 3 days. The larvae feed inside the grain kernel for an average of 18 days.

Do weevils jump or fly?

Most weevils have the ability to fly (including pest species such as the rice weevil), though a significant number are flightless, such as the genus Otiorhynchus.


Do weevils come out at night?

Root weevils are a common pest in area home gardens, but the adult weevils are seldom brought to the Extension office for identification. That is because they are nocturnal, feeding late at night and hiding during daylight on the undersides of leaves or beneath debris on the ground.

Why can't I get rid of weevils?

By the time you spot weevils, odds are they've infested other nearby food items. So to oust them, you've got to purge your pantry of unsealed dry foods, including oats, rice, barley, flour, corn meal, pasta—even prepackaged box-type dinners that don't have sealed internal pouches.

What to put in pantry to stop weevils?

Dried bay leaves discourage grain and rice weevil infestation, so place one in each airtight container. Purchase non-toxic, pesticide-free pantry moth traps if you continue to have pantry moth infestations.


What smells deter weevils?

A natural method of deterring weevils is the placement of dried chilies, cloves or bay leaves on pantry shelves. Weevils are sensitive to smell and dislike the aroma of spices; the presence of these strong-smelling herbs will repel rice weevils and other household pests.

Can weevils survive in the fridge?

As previously stated, 61 days' refrigeration killed all emerged weevils, although some survived within the beans.

What temp kills weevils?

Heating grain to 140 degrees F for 15 minutes or freezing at 0 degrees F for 3 days will kill all stages of weevils in the grain.


What is weevils favorite food?

Most weevil species, such as maize, granary, and rice weevils, eat grains and seeds stored in dry areas. The diet of these weevils consists mainly of rice, flour, cereals, and, in some cases, even pasta.

What are weevils favorite food?

Diet. As herbivorous creatures, weevils feed on various parts of plants, from leaves and stems to roots and fruits. Stored grains and flour can also be significant food sources for certain species. Different species of weevils have specialised diets and attack particular plants or food products.