Can weevils live without oxygen?

Online Answer
If you pack grain with weevils in it using metal cans or Mylar bags with oxygen absorbers, the lack of oxygen will kill the weevils. Here are some links on how to store your grains and legumes to prevent the growth of weevils. Oxygen Absorbers, Sealing Food in 5 Gallon Buckets ,Dry Pack Canning.
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A: Bugs (and other insects) can get to your brown sugar if it's not kept in an airtight container..
Although you won't be able to see the eggs in pantry items, you will be able to see adult weevils. Check your flour and pantry products for them and if you find weevils, throw away the food. If you don't see weevils, you can store and use the flour or food..
Baking, microwaving, and freezing will kill weevils. ... Carbon dioxide, also, is almost guaranteed to get rid of weevils. Oxygen absorbers are very handy and helpful, though not a certain solution. Vacuum sealing is not effective.
Simple answer is no. Eating a weevil or it's eggs is not harmful to humans. If they are in flour or rice then once the grain is cooked they will add nothing more than a crunch to your food..
Flour weevils are safe to consume — to a point If you have a really intense case of weevils, definitely throw the product in the trash bin because it could be spoiled or a source of foodborne illness (via the University of Idaho).