- One clear sign of Indian meal moth infestation is a silk thread the pest produces as it feeds on grain. The larvae typically restrain themselves to the top layers of grain in storage. The meal moth feeding reduces the dry weight of the grain. Food products that have not been sealed well or are thinly wrapped are convenient food sources for these pests. Discard or disinfect any food products infested by the moth.
- One way of controlling Indian meal moth infestations is to subject the infected items to hot or cold treatments to kill off the larva. The cold treatment involves placing the infested material in the freezer for two or three days. Alternate the exposure to freezing temperatures with exposure to room temperature for a more effective treatment. The heating treatment involves placing the infested material in the oven and exposing it to temperatures in the range of 120-140 degrees Fahrenheit.
- Store foods in containers that are sealed tight. The containers should also be thick enough to prevent the larvae from chewing through them. Storage in the refrigerator is another option, to the extent that is possible. Another option is to store pet foods outside the house. Good sanitation is necessary. Clean containers before using them to store grain.
- Although it is possible to get rid of the Indian meal moth, there is a possibility that the pest could take over and reinfest food items. To prevent this from happening, take utmost care to see that these insects don't have access to food sources for at least a month. If there is any spilled food, be careful to clean it up. Don't use insecticides in a bid to control the pests because this could render the food harmful for human consumption.
Identifying Damage
Temperature Control
Food Storage
Preventing Reinfestation
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