Debris

• Remove breeding areas from your yard by getting rid of piles of junk, leaves and sticks and cutting back overgrowth. Fleas do not like the sun, so remove shady spots for them to hide in. Keep your grass mowed, and maintain your buildings and fence in good repair so wild animals don't move in and bring a flea infestation with them.
  
  

Pesticide

• Select an insecticide designated for outdoor use because indoor sprays may be rendered ineffective by the sun. Pyriproxifen is an insecticide that can be used in your yard and in your home as well. A product that is packaged in a pressurized container is usually easier to aim. Follow the directions on the label to ensure that you use the product safely. If your weather has been dry, water your lawn before using the pesticide. You do not have to worry about treating areas of your lawn that are in full sun. Fleas prefer the shade, so focus on the shady parts of your lawn including under bushes and buildings. Spray the ground under the bushes rather than the bushes themselves. Treat your pet, the inside of your home and your yard on the same day. You may need to repeat the procedure in two to three weeks to kill newly hatched fleas.
  
  

Safety

• Follow the manufacturer's directions when using pesticides. Make sure the product you use is designed to kill fleas. Keep your pets indoors until your yard is dry so they do not come in contact with the pesticide. Always wash your hands well after using and take care not to get the pesticide on your hands or inhale the vapors.
  
  

Natural Treatments

• Select a pesticide that is environmentally friendly and will not harm your plants, pets or wild birds. Consider using natural forms of control like nematodes or diatomaceous earth. Nematodes are tiny worms that live in the soil in shady areas of your yard. They destroy flea larva and and many other harmful pests. You can purchase nematodes and spray them onto your lawn by mixing them with water. Diatomaceous earth is a natural substance composed of ground marine fossils. These tiny particles make little cuts on a flea's body, which causes dehydration and death.