A few bay leaves will prevent weevil infestation in dry stores such as flour, rice, popping corn, grains, pasta, cereal, and cake mixes---frequently purchased with weevil larvae already present. In the store, check the package date and inspect packages for small holes or other visible signs of weevils. Note the expiration dates, then discard boxes or bags the items came in. Add a few bay leaves, and store contents in airtight containers or sealable bags. Label with contents and expiration date. Store in a warm, dry spot to retard mold.