Natural and Safe Ways to Kill Fleas on the Lawn

Effective Tools

• Nematoads, small worms, feed upon the larvae of the fleas present in the yard, according to Eartheasy.com. Diatomaceous earth, a natural product containing the shells of microscopic sea creatures, works by breaking holes in the exoskeletons of the fleas.

Applications

• Introduce nematoads into the garden and shady, moist areas of the yard. In these same areas, apply a sprinkling of diatomaceous earth, recommends the Mother Earth News.

Time Frame

• The most important time to control fleas in the yard is the flea's peak activity season. Generally, fleas are most active in the summer months and less active during the winter. Introduce nematoads in the spring, so these worms will be active throughout the flea's breeding season. Sprinkle the yard with diatomaceous earth during the summer. Reapply diatomaceous earth every seven to 10 days.

Warning

• Nematoads rarely survive over cold winters. If fleas are present in the yard the following spring, it is necessary to introduce a new supply of nematoads to the yard. Use food-safe diatomaceous earth, available at garden supply and health food stores. Diatomaceous earth for pool use may contain chemical additives.