How to Treat Your Grass for Fleas

Apply a liquid or granule insecticide designed to kill fleas on all areas of the lawn that are inhabited by fleas. Purchase an insecticide at a home improvement store or pet store. Seek advice from a veterinarian if you are concerned about how your pets may react to chemical treatments. Some veterinarian clinics sell chemicals designed to kill fleas. Treat your lawn based on the instructions on the insecticide that you have chosen to use.

Remove pets from your lawn and apply nematodes to all areas of your lawn. Nematodes, which are naturally-occurring, soil-dwelling worms, can be purchased via the Internet or from pest control professionals. Spray the worms directly on lawn areas with a garden sprayer. Allow the nematodes to work their way into your lawn and kill fleas for at least 48 hours before reintroducing pets to your lawn.

Slice and peel citrus-based fruits such as lemons, oranges and grapefruits and then pour boiling water over them in a large plastic container. Allow the mixture to soak and cool overnight. Apply the mixture to all lawn areas and to pets. Because it is natural, citrus will not harm pets.

Add flea-repelling plants to your landscape. Focus on plants such as lavender, mint, eucalyptus, daisy fleabane and rosemary. In addition to attracting and killing fleas, these plants will provide pleasant aroma and beautiful landscaping features to your yard. Contact a nursery for more information about flea-repelling plants.