Which is a pest of intact whole grains and seeds?

The rice weevil is a well-known pest that specifically targets intact whole grains and seeds, making it the correct choice for this question. It is a small beetle that can infest various stored products, including rice, corn, wheat, and other grains. The larvae of the rice weevil develop within the grain kernels, feeding on the endosperm, which causes damage and diminishes the quality of the stored product.

Recognizing the rice weevil as a pest of whole grains is crucial for understanding how to manage and control infestations in stored food products, as it highlights the importance of maintaining proper storage conditions and regularly inspecting stored grains for signs of pest activity. This knowledge is essential for anyone involved in pest management or food storage practices.