The word pesticide is misunderstood, nearly to the same extent as the word chemical. People have been led to believe, largely by the organic food industry and environmental activists, that pesticides are unnatural, dangerous, and do not belong in the food supply. But this defies a basic understanding of biology.
A pesticide is any chemical, natural or human-made, that is designed to kill another organism.
Using that broad definition, there are probably hundreds of thousands of pesticides in the natural environment. As it turns out, biological warfare was invented and perfected by Mother Nature.
For example, some bacteria and fungi produce antibiotics to kill other microbes. We don’t call these antibiotics “pesticides,” but that’s exactly what they...