What to do if Indianmeal moths are found in the house?

What to do if Indianmeal moths are found in the house?

Indianmeal moths are common stored-product pests. Upon discovery, immediately and thoroughly clean all dry goods in the kitchen.

Step 1: Inspect all dry goods

• Check all grains, dry goods, and snacks—flour, rice, noodles, crackers, nuts, dried fruits.
• Any item with webbing, larvae, or frass should be sealed and discarded in an outdoor trash bin.
• Do not overlook uninfested items; they need preventive treatment as well.

Step 2: Treat uninfested food

• Freezing: place in the freezer at -18°C or below for 48 hours to kill any hidden eggs.
• Airtight storage: after treatment, store in glass jars or sealed plastic containers.
• Do not return them to the original packaging.

Step 3: Thoroughly clean cabinets

• Empty all cabinets and drawers.
• Use a vacuum to remove debris and webbing from every corner.
• Wipe interior walls with a damp cloth to remove residual eggs and larvae.
• Seal and discard the vacuum bag.

Step 4: Chemical control

• Apply food-grade diatomaceous earth to cabinet interiors and baseboards.
• Dust around door gaps and hinges as well.
• Once dry, the powder forms a protective layer; newly hatched moths die upon contact.

Step 5: Long-term prevention

• Store all grains in airtight containers.
• Inspect regularly (monthly) and treat early signs promptly.
• Freeze newly purchased grains before storing.
• Keep cabinets dry and clean.