Is it true that the granary weevil attacks grain before harvest and storage?

The granary weevil is known for its destructive impact on stored grain, but it primarily infests the grain after harvest rather than before or during the actual harvesting process. These beetles lay their eggs inside whole kernels of grain, and once the larvae hatch, they begin to feed on the grain from the inside, causing damage.

By focusing on the correct understanding of the weevil's behavior, it's important to note that they are typically considered pests of stored grains. Therefore, while they do not attack grain before or during harvest, they become a problem after the grain has been harvested and put into storage. Understanding this lifecycle is crucial for effective pest management strategies, which typically involve monitoring and controlling their populations once the grains are stored to prevent infestations.

In summary, the granary weevil does not attack grain before harvest; it primarily affects grain after it has been harvested and stored, making the assertion that they attack grain before harvest and storage misleading.