I am a first time gardener. The leaves of my basil, kale, and pepper plants are being chewed by something. I have been researching insecticidal soaps. There are many recipes for making homemade soaps but I thought I would come here to ask your opinions before spraying the plants. Is there a recipe that works well without damaging leaves? What about Safer Spray? Is that good? I'm trying not to use anything unnatural so I thought using a homemade recipe would be best, but maybe Safer is okay?