The Weevil will live for 1-3 years in a warm and humid storage place is They will feed and breed in the same bag of flour. Within a month the eggs become larvae and will feed through the flour until it molts to become a pupa, then into an adult weevil The female weevil will deposit its eggs in the crevices of a carton of flour.
Weevils are present in flour when you buy a bag in the grocery. Freezing the flour ensures no eggs remain and the visible weevil is strained out before storing properly. The Flour Weevil is a tricky pest as it can live and breed in the same bed of flour its whole life without leaving as an adult. They then become adult weevils that fly and crawl their way around the house. The unseen and undetected eggs are inside the dry food and hatch in your home after a few days. Weevils come into a house through dry foods sold in cardboard or plastic sealed bag packages. When flour, rice, beans, and pasta is left in the freezer for 3-7 days, it will kill both the adult weevil and its eggs. Why are there bugs all over the house, and what can I do to stop them?įreezing is the easiest and effective way to kill a weevil. You go down to make breakfast, and when you open the box, there are weevils in the powder. It’s early in the morning, and just as you are about to open the window, you see about ten or more weevils on the windowsill.
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