Damage is done by the larvae, which you may see in other parts of the home as well. You may also see silken threads where the larvae crawl and webbing in your food products. Store infrequently used products in the refrigerator or freezer to inhibit pest invasion. Make a habit of freezing grains and flour for 48 hours when you first bring them into your home. Use pheremone traps to monitor and trap the moths.
Traps are effective for about three months.
If you find new moths in the traps, inspect your food containers again. It may take time to get rid of the pests as they can live for some time without food. Plant in full or partial sun in well-drained soil.