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SAWTOOTHED GRAIN BEETLES

They are deep red and measure approximately 2.5-3.5 mm. On each side of the neck it has 6 small tags. A female can lay hundreds of eggs during her lifetime. They grow fast in temperatures from 20-35 degrees, below 18 degrees the development stops. The process from egg to adult takes 3 months at 20 degrees but only 3 weeks at 35 degrees. They prefer grain and fat products.

How to avoid them:

  • Keep clean in the larder
  • Reseal flour bags after use
  • Store dry goods in temperatures below 18 degrees

Suitable treatments: cleaning and chemical treatment.