Pedro, Some feed back from a few folks, The risdual wax builts up on the plant. Not that effective for critters listed, but very effective for 4 legged critters.. L.B. Hi, i found this: "Hot Pepper Wax Insect Repellent is a natural garden/greenhouse spray repellent and insecticide. It is proven effective against aphids, spider mites, whiteflies, lace bugs, cabbage loopers and beet army worms for 2 weeks or longer. The chief active ingredient, CAPSAICIN, is an extract from cayenne pepper."