Created by compiling readers' recipes, this DIY "all-purpose" spray combines garlic, onion, hot pepper, and dish soap. I know if you sprayed all that stuff in my direction, I'd be inclined to get out of the way.
(The directions include the caveat that sprays with soap potentially can harm pests' enemies and pollinating insects, so watch where and how often you spray.)
For a complete list of ingredients and directions, visit Organic Gardening.
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