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.
Cat fleas can survive solely on a diet of human blood. Theyâre capable of living for 139 to 185 days if fed on human arms for 15 minutes each day. 10 minute feeding intervals can keep females alive for up to 30 days, and males for 17 days. In a recent study, fleas had continuous access to human blood for 12 days in an artificial setting. A significant number of fleas survived, especially when dog hair was added to their cages.