Fleas don’t die overnight, but they do die in the cold, when temperatures drop toward freezing. If you’re concerned about your pet’s infestation, you can take steps to kill the fleas before they reach adulthood. It takes a few months to completely eliminate the infestation, and you may need to apply more than one type of fleaicide to your home.
One way to kill fleas is to keep your home at a constant temperature of 30 degrees Fahrenheit. This temperature will kill all stages of fleas, from pupae to adulthood. This temperature is too cold for outdoor fleas, but indoor fleas can survive these cold temperatures.
The residual effect of insecticides can help get rid of fleas and kill the egg-laying stages. However, you must be very careful and refrain from disturbing the treated area for about 10 to 14 days after application. The residual effect of the insecticide will kill the fleas even if they remain on the pet.
Although fleas are commonly associated with pets, they can also live on human skin. They feed on discarded skin cells, which are a favorite food source for flea larvae. Some shampoos containing tea tree oil can help kill fleas in your hair. Tea tree oil has anti-parasitic and anti-microbial properties, making it an effective way to kill fleas.