Weevils
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Weevils are instantly recognisable by their elongated snouts and the grain weevil is widely accepted as the most common pest of stored grain. The female weevil bores a small hole into a grain kernel and deposits a single egg into the hole. She seals this hole with a gelatinous material and then repeats the process on kernel after kernel until she deposits 300-400 eggs. Open, round exit holes in the grain are a sign of weevil infestation. When disturbed, a weevil "plays dead" by drawing their legs close to the body. They then lie still for several minutes before resuming movement. Control is best achieved by fumigation or the use of silica dust.