The Grain Weevil is a common pest of stored grains and is found worldwide. Originating from Europe, it has spread globally, infesting various stored products, including wheat, barley, and other cereal grains.

Breeding and Reproduction:

Similar to other weevils, the Grain Weevil undergoes a complete metamorphosis, including egg, larva, pupa, and adult stages. Females lay eggs inside grains, and the larvae develop within, consuming the grain’s internal contents. Upon maturity, adult weevils emerge from the grains.

Feeding Habits:

Both larvae and adults of the Grain Weevil feed on the internal parts of grains. Their feeding activities can lead to the degradation of stored grains, reducing quality and market value.

Hiding and Living in Stored Products:

Grain Weevils primarily infest stored grains, where they find shelter and sustenance. They are highly adaptable to various environmental conditions, making control challenging.

Damages to Stored Products:

Infestations of Grain Weevils can result in significant damage to stored grains. In addition to feeding on the grains, the presence of weevils can lead to contamination, foul odors, and a decrease in nutritional quality.

Control Recommendations:

Product Inspection: Regularly inspect stored grains for live weevils, larvae, emergence holes, and damaged grains.

Temperature Control: Implement temperature control measures in storage facilities, as Grain Weevils prefer warmer conditions.

Proper Sealing: Ensure storage containers are tightly sealed to prevent infestation. Repair any damaged containers or gaps that may serve as entry points for the weevils.