The most effective way to manage stored grain pests is to avoid them. The goal of sanitation is to eliminate insect eggs, pupae, and adults. Never put newly harvested grain into bins containing old grain. Empty the bins of all residual grain, and use shovels, brooms, and industrial vacuums to clear dust, webbing, and fines from around any cracks and crevices, doors, seams, vents, and especially under false floors. Even small amounts of old grain or fines left in the bins can harbor insects that can start a problem. Clean fans, elevators, and other conveyors before new grain is stored. Grain that can harbor insects can collect in places that are difficult to see, such as on the top of stirrers. Once the bins are clean, inspect them and repair any cracks or holes which can allow moisture or insects to enter. Pretreat clean bins with an allowable grain protectant listed for pre-harvest space application. Always check with your organic certification agency before using new materials. Always wear proper safety equipment (e.g., respirator, air helmet) when cleaning and treating bins.
Clean combine headers, augers, conveyor belts and grain transporting equipment. Purge the first few bushels from the combine to remove old grain, and load harvested grain into a clean truck. Maintain weed- and spilled grain-free surroundings around grain storage.