Garden Guides | Homemade Insect Spray for Lawns
Sep 21, 2017·Add insect-specific ingredients. This is optional, but if you are targeting a specific type of insect, certain natural additives can increase the effectiveness of your insect spray. Spray the lawn. Generously spray your lawn with the soap and water mixture. You can give your entire lawn a coating, or spot-treat for insects, such as ant hills.