Are Weevils Harmful? Do They Bite Humans?

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Weevils can find their way inside any open grains or food in the pantry and sometimes even in packaged foods. But are they harmful, or are they just a nuisance?

Weevils are a threat to the stored food grains in your kitchen cabinet. These tiny insects love to reside in food grains and lay eggs. 

But have you wondered how harmful is the presence of these insects in your food? If yes, then we are here to tell you that they aren’t dangerous.

Read on to know more about what damage they can cause.  

 

Are Weevils Harmful? Truth Revealed

 

Are Weevils Dangerous? 

Weevils have elongated snouts with mouthparts to chew and bite their food. They use these to bore holes into grains, eat them and lay their eggs inside them.

Despite their ability to carve cavities in grain kernels, these insects are not harmful to humans. They only cause problems with stored grains. 

Are They Poisonous?

Weevils are not poisonous for humans and pets. However, due to their habit of nesting and breeding in stored food grains, you might sometimes find a few of these in your food. 

Eating them on purpose is probably not a good idea, but accidentally consuming a weevil will not cause any harm to the human body. 

Do They Carry Disease?

As mentioned in the section above, weevils are not harmful to humans and do not carry diseases

Finding a rice weevil in your grain container is nothing to panic about. However, if the batch is infested by many of these weevils, it is advisable to replace it immediately. 

 

Are Weevils Harmful? Truth Revealed

 

Do They Bite?

Weevils cannot sting or bite, and they are harmless to humans. These insects use their solid mandibles for chewing and creating cavities in food grains to lay eggs. 

Also, these insects do not cause any harm to your wooden furniture; they only infest food grains in the house. 

However, there are instances when people have claimed to be bitten by them. It is likely that this happened when the female weevil was looking for a place to lay her eggs.

Are Acorn Weevils Harmful to Humans?

Acorn weevils are small insects with brown-colored bodies and long snouts. Unlike the granary weevil, these insects drill holes in acorns to lay eggs. 

These little insects are not harmful to humans. Also, like the other weevils, they cannot damage your furniture or carpets.

However, they can cause significant damage to your acorn plantation.

 

Are Weevils Harmful? Truth Revealed

 

How to Kill Acorn Weevils?

Since acorn weevils mostly emerge from the soil during the summer season, here are two ways that you can use to kill these insects:

Freeze them out

Collect fresh acorns and refrigerate them to delay the grub growth; after that, put these acorns in the freezer to kill them. 

Boil the acorns

Collect and soak a batch of infested acorns for 20 minutes in 120° Fahrenheit hot water. This excessive heat will kill them inside the acorns. 

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Frequently Asked Questions 

Do weevils make you sick?

Adult weevils and larvae are not harmful to human beings and pets. In fact, the presence of dead weevils in your food is an indicator that it might contain pesticides. 
Weevils do not carry any disease and consuming them will not cause any problems for you, though its best to throw away a batch of grains that is badly infested by them.

Are weevils harmful to the body?

Weevils are not harmful to the human body. Even if you accidentally consume a weevil with your food, you won’t fall sick or get infected. 
These insects are only capable of causing damage to the food grains by chewing out cavities in them to lay eggs. 

Can you eat flour with weevils?

Yes, you can eat flour with a couple of flour weevils present in it. However, it is not advisable to consume a batch that is heavily infested by these insects. 
If a container of flour is filled with weevils and weevil poop, make sure that you immediately get rid of that batch. Also, clean out the container with soapy water. 

Why do I keep finding weevils in my house?

Many types of weevils like warm and moist environments to live in. If you are finding weevils in your home, they must have entered through different food sources. 
Since they breed and feed within grain kernels, it is possible that they must have entered your house when you purchased an already contaminated-grained food. 

Should I throw out the rice with weevils?

If you find a rice container with a few weevils, there is no need to throw it away. You put them in the sunlight to get off the insects. 
Moreover, these non flying beetle species are not harmful to humans and won’t cause any adverse effects if you consume one or two by accident. 
But if the rice batch is filled with weevils, it is best to throw it away. 

How do I get rid of weevils?

Mentioned below are a few ways to get rid of them:
Put the contaminated food in the freezer to kill them.
Heat the food grains for 15 minutes at 140 degrees F.
Keep the infested batch in the sunlight for a few hours.
Store bay leaves in grain containers to keep them away. 
Store food in airtight containers. 

Wrap Up 

Weevils are harmless creatures, but they can cause severe damage to the food in homes. 

Although having a few of them in your food is fine, you must know how to control these insects from infesting your homes. We hope this article will help you with it. 

Thank you for reading the piece. 

 

 

 

 

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Authors

  • Bugman

    Bugman aka Daniel Marlos has been identifying bugs since 1999. whatsthatbug.com is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

    View all posts
  • Piyushi Dhir

    Piyushi is a nature lover, blogger and traveler at heart. She lives in beautiful Canada with her family. Piyushi is an animal lover and loves to write about all creatures.

    View all posts
Tags: Weevils

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