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.
1 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. On average, they live two to three months.  Female fleas cannot lay eggs until after their first blood meal and begin to lay eggs within 36-48 hours after that meal.