Prairie dog burrows can be dusted with insecticide. Check with Public Health Service officials if your area is affected. In most other cases, fleas are considered pests due to the nuisance caused by their bites. Sanitation Fleas require warm-blooded hosts for development and for egg maturation. Elimination of suitable habitat for wild rodents and other animals near structures will often reduce flea population levels.
Screened vents prevent animals from resting inside or underneath structures.
Eliminating vegetation close to structures and raising woodpiles off the ground reduces rodent harborage. Indoors, wash or vacuum all pet bedding and sleeping areas on a regular basis. Cracks and crevices should be vacuumed and sealed, especially the area between the baseboard and floor. Dispose of vacuum cleaner bags to prevent reinfestation. Pets should be washed regularly and treated with insecticides if necessary.