Wheat weevils reside in grain stores and become active in spring and summer when the weather gets warmer and more humid.
They feed on various types of grain such as wheat, barley, and oats. At the same time, warmth and humidity cause egg-laying adult wheat weevils to lay eggs inside the grain kernels. These eggs develop into larvae, which increase the moisture and temperature in the grain, potentially leading to mold growth and thus damaging the grain.
How to avoid wheat weevils in the grain
To prevent wheat weevils in the grain, it is important to keep the temperature low in grain stores and silos and avoid humid conditions.
By blocking the air intake on the blower with plastic, you prevent warm air from being blown in. If the temperature is kept below 13–14 °C, wheat weevils will not be able to stay in the grain or lay eggs.
If the worst happens, grain fumigation is an effective method to combat wheat weevils. However, this may only be carried out by authorized pest control professionals.
