Kathy Heinsohn, a board-certified entomologist with American Pest, says the insects are commonly brought home in products such as grains, dried fruit, dried peppers and nuts. Rodent or bird infestations in or around a home can also contribute to the problem, according to Martha Stewart.
Although there are several species of moths, those found in kitchen cupboards are most likely Indian meal moths, Heinsohn says.
Here are four ways to eliminate pantry moths:
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Food preservation by glass jars. Illustraion from Unsplash |
Throw away contaminated food
Discard any food showing signs of infestation, such as webbing, larvae or adult moths, according to Good Housekeeping. Take the rubbish outside immediately to prevent the insects from spreading elsewhere in the kitchen.
Store food in airtight containers
Simple bag clips are not enough to keep pantry moths out. Their larvae can chew through plastic bags, paper and thin cardboard, and may even squeeze through loose-fitting lids.
Dry foods should therefore be stored in sturdy glass or plastic containers with tightly sealed lids.
Deep-clean cupboards
Remove crumbs and food residue from shelves, corners and crevices before cleaning the cupboards thoroughly with white vinegar or hot, soapy water.
Avoid soaking unfinished wood. Because moth larvae are extremely small and can survive on tiny amounts of food, particular attention should be paid to cracks and corners where eggs may be laid.
Freeze suspicious foods
Dry foods that show no obvious signs of infestation but may have been exposed to pantry moths can be placed in sealed bags and frozen for about a week.
The freezing process can kill eggs, larvae and other insects that may be hidden inside.