Q:

How long can fleas live without a host?

A:

Quick Answer

The amount of time fleas can survive without feeding varies from several days to two months depending on the humidity of the environment. Fleas thrive in humid environments.

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Full Answer

The Pet Shed Petcyclopedia explains that a flea can live for a little over 130 days when it has access to a host. When a flea loses its host, it must find a new one as quickly as possible. According to 1-800-PetMeds, a little over half of newborn fleas may be able to survive for two months without a host if their environment is humid enough. On the other hand, newly hatched fleas in a dry and cold environment usually survive a few days at the most without feeding. Unfortunately, starving fleas of blood by removing their hosts is not considered a viable control method. Like other parasites, fleas always find new ways to adapt to their surroundings, and it only takes a few hardy individuals to build a booming population. The Pet Shed Petcyclopedia shares an unsettling statistic about how little it takes for a flea infestation to take over a house: as long as their environment is humid enough, just ten female fleas can become a quarter of a million within one month.

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