How to treat moth infested carpets

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A moth infestation in your home's carpet can devastate the carpet. It is actually the larvae of the moths that eat your carpet, as it is a food source for them. Female moths can lay up to 150 eggs at a time, which hatch in only five days. The lifespan of a moth can be anywhere from two months to two years, and their larval stage can last from 2 to 30 months. In that amount of time, moth larvae can completely destroy any rug or carpet that they are living on. Rugs containing wool and other animal fibres are vulnerable to moth infestation.

Clean the rug. Larger rugs or rugs that are fastened to the floor will need professional cleaning, but smaller rugs can be washed using a regular washer and dryer. Use hot water, if possible. Cleaning the rug helps to remove the larvae, and the hot dryer kills many of the eggs and remaining larvae.

Use a pesticide or insecticide formulated specifically for killing moth larvae and eggs. Spray the pesticide on the front and back of the rug either outside or in a well-ventilated area. If possible, roll the rug up and let it sit at least overnight to allow the pesticide to do its work.

Vacuum, sweep or beat the rug to remove the dead moth larvae once the rug is dry.

Wash and dry the rug once again, making sure to use hot water, if possible.

Spray all carpet in the home with a moth repellent containing magnesium silicofluoride. Reapply the moth repellent every three years or every time the rug is washed.

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