Historic & Scenic Sites in and around Washington County, MO by Esther & Gene Carroll History of Washington County Jails & Courthouses by Esther Carroll These links are a part of Carrolls' Corner - lots of Washington County History!
In a humid environment, over 60% of newly hatched fleas can live without a host for 2 months. In a cool, dry environment, only 10% will live without an immediate host. Humidity is the key to flea survival.
The lifecycle of a flea. 5% of fleas live in the environment as an adult, 95 % of fleas live as eggs, larvae or pupae. For effective flea control it is essential to break the lifecycle in the environment. 1  Adult Fleas-jump onto your dog or cat, feed on its blood and then start laying eggs. One flea broke a record with a four-foot vertical jump. 2  Undisturbed and without a blood meal, a flea can live more than 100 days. 3  On average, they live two to three months. 4  Female fleas cannot lay eggs until after their first blood meal and begin to lay eggs within 36-48 hours after that meal.