How Long Fleas Die?
If you’re wondering how long fleas die, there’s no one single answer. The temperature and humidity of the environment are important factors in flea survival. Fleas can’t survive in an environment with low relative humidity. In fact, they prefer high relative humidity. Fortunately, there are a few ways to kill fleas.
In warmer climates, fleas are present year-round. While some people welcome the colder months of winter, fleas need high temperatures to survive. In colder climates, prolonged freezing temperatures can kill fleas, but fleas have ways to survive. In temperatures as low as 37 degrees Fahrenheit, they will be dormant.
Depending on the stage of development, fleas can live up to two weeks without a host. In their early stages, young adult fleas do not develop blood dependence and can survive without a host. However, in certain stages of their life cycle, fleas can live for much longer. Therefore, it’s best to follow a comprehensive approach to flea control.
A good insecticide for floors can kill adult fleas within a day or two. However, it does not kill the flea eggs. The residual effect of the insecticide can last between 10-14 days, depending on the chemical that is used. Insecticide for floors is invisible and odourless. While it will kill adult fleas, you should not disturb the treated area for two weeks.