That's because willows naturally contain an auxin called indole-3-acetic acid that supports plant growth. They also contain salicylic acid, which can help fight off fungal or bacterial infections.

Vinegar is a diluted form of acetic acid that’s both versatile and harmless. We use it to cook and clean — and to treat our tired, aching, stinky feet. Acetic acid has antifungal and ...

All wines contain acetic acid, the active ingredient in vinegar, but usually the amount is quite small—from 0.03 percent to 0.06 percent—and not perceptible to smell or taste. Once table wines reach 0 ...