Canadian Grain Commission
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Physical control of grain insect pests

Grain vacuator

Cyclone-based grain vacuators can not only be used to remove grain from storage, but they are also effective in killing insects. The percussion effect created by the cyclone causes insect mortality. The style of grain vacuator used and the class and physical condition of the grain may affect this method of insect control.

A photo shows a grain vacuator attached to a tractor.

A grain vacuator attached to a tractor