Silica Aerogel for Protecting Stored Seed or Milled Cereal Products from Insects

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Abstract
Silica aerogel was more effective against the insect pests of stored grain and milled cereal products than any other form of silica tested. Min. effective dosages for preventing injury from the confused flour beetle, the rice weevil and the Mediterranean flour moth were by weight, 0.025 for 12% moisture wheat and feed in pellet form; 0.05 for seed wheat of 14% moisture and for powdered hand soap (60% corn meal); 0.5% for ground feed; and 1% for bird feed (mixture of seed and finely ground feed). The dust is highly irritating when breathed and workmen should be protected by the use of respirators.

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