Identification and Behavior
Weevils are very small beetles, often less than a quarter of an inch, that are attracted to dry foods. Most have the ability to chew through paper in order to access a food source. Weevils are a type of beetle that are primarily attracted to wheat and stored grains. In homes, they can infest pantries and make their way into dry food products. In the wild, they are particularly damaging to crops. Some can also fly. They can be found in nuts, seeds, cereals and grain products. Weevils tend to have short life spans, but in some cases, they can lay a large number of eggs during this short period. They thrive in warm conditions and mature more quickly under high temperatures. They take longer to develop in cold temperatures and have a lower survival rate.
Grains infested by weevils can become sticky. Some grains become moist and may begin to sprout. While they may cause food spoilage, weevils are not harmful to humans and not toxic if ingested.