Fleas are the bane of many a pet owner's existence. While adult fleas prefer to hang out on your cat or dog, they leave behind larvae and eggs in carpets, furniture and your yard. But no matter how effective your indoor flea treatment is, if your pet goes outside it will more than likely pick up new fleas in just one circle around the lawn. A thorough management program must include lawn treatment to prevent flea infestations.
Let in the Light
Open up the shady areas of your yard. Trim back any plants that overhang and darken patches of your grass. Let the sun in to dry up the grass. Flea larvae grow in moist, shaded areas, according to D. L. Richman, a horticulturist with the University of Florida. Without dark, moist conditions, flea larvae cannot develop properly.
Drown Them Out
While flea larvae need a moist lawn to develop, they cannot survive a lot of water. Periodically flooding the yard with a few inches of water will flush out the young fleas and their eggs. Flooding also rids the yard of the dried blood that is food to the larvae, according to Richman.
Spray Infested Areas
Insecticides are usually not necessary to kill the fleas in an entire yard. However, if your pet spends a lot of time in a favorite garden spot, dog house, kennel or shed, you may need to spray. To determine if fleas are present, walk around with white socks on and see how many jump onto your feet and ankles. Spray infested areas with an insecticide registered for use outdoors. Apply the insecticide once or twice a month during dry periods.
Remove Their Habitat
Larvae develop rapidly in areas rich in organic matter, such as piles of decaying leaves, weeds or mulch. Rake these areas clear if they are not necessary for plant growth. Once exposed, the flea larvae and eggs will stop developing, according to Richman.