What insecticides can be applied directly to grain going into storage?
Grain can be treated with either diatomaceous earth or malathion as it is being binned. Diatomaceous earth treatments can either be applied to grain going into storage, to the grain at the top of a bin as a barrier to insect migration after binning, or both to grain as it is being binned and the surface of the grain. Keep in mind that malathion must not be used on stored canola or pulse crops. Some buyers of malt barley and milling oats also do not want grain that has been treated with malathion so it is best to check with potential buyers of these grains before any insecticide application. In all cases where products are applied to grain, it is important to follow label instructions.
