Shortcuts may result in control failure. Carefully examine all susceptible foods to determine sources of infestations. Throw away any that are heavily infested. If infested food has further value or if infestation is questionable, heat the food at 130 degrees Fahrenheit for at least 30 minutes or place in a deep freezer at zero for four days. Empty and clean up shelves with a vacuum and wash with soap and water.
Spray shelves lightly, particularly cracks where shelves and wall come together.
If a sprayer is not available, use a paint brush to apply the insecticide. After the spray has dried, cover shelves with clean, untreated shelf paper before replacing food and dishes. Store food that may become infested in tight containers. Insects such as the Angoumois grain moth and the seed weevils which occur in whole kernels of grain, can be controlled by the heat or cold treatment. Heat should not be used on popcorn for obvious reasons.