How to Use Borax to Treat Fleas in Your Yard
- 1). Apply the borax when there will be no precipitation for at least 72 hours. Applying borax to your lawn before a big rain could cause the borax to wash away before it really has an effect on the flea population in your lawn.
- 2). Observe high flea population areas. These tend to be areas in which animals frequent, such as doghouses or food areas.
- 3). Apply the borax lightly within the areas that you suspect fleas populate, or cover the whole lawn for total protection. Try not to be too heavy-handed with the borax sprinkling, as a large amount of borax can kill plants. If applying pure borax to your lawn troubles you, mix the borax with natural diatomaceous earth. Diatomaceous earth acts as another flea control product, dehydrating fleas to kill them.
- 4). Keep your family and any pets away from the yard as the borax or borax/diatomaceous earth mixture sets in for the next three days. While diatomaceous earth is nontoxic, borax can be a toxin if it gets into broken skin or if ingested. The U.S. Forest Service notes that borax can cause nausea and vomiting, and in children shock and death can occur upon ingestion.
- 5). Wash away the borax after three to four days. By this time, the fleas in your lawn should have ingested the borax or absorbed the diatomaceous earth. Allow the lawn to dry completely before allowing your family and pets outside to play again.
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