Hartz UltraGuard Plus Flea & Tick Carpet Powder - 16oz Fresh scented carpet powder kills fleas and ticks for up to 30 days Prevents re-infestation by killing flea eggs and flea larvae up to 1 year Includes 16 ounces of carpet powder Targets and kills all stages of the flea life cycle Eliminates tough pest infestations Only use once a month