by Larry Hodgson March 3, 2016 14 Gardening Laidback Gardener Tip of the Day Pesticides Using Alcohol to Control Pests One homemade insecticide that can really do the job is 70% rubbing alcohol (isopropyl alcohol). Mix 1 part rubbing alcoholContinue Reading Share this:TwitterFacebookLinkedInPinterestLike this:Like Loading...