You get a clue of what pesticides are in the 1947 law “regulating” their use in the United States. The law, the Federal Insecticide, Fungicide and Rodenticide Act, says pesticides are chemicals designed to control (destroy, mitigate, repel) insects, fungi, rodents and weeds. Then the law opens loopholes and unleashes a barrage of technical terms and vague sentences as if the matter of pesticides is as normal as apple pie. You get the impression farming is impossible without them. Should Pesticides Exist? But are pesticides normal? In fact, should most of them exist at all? It’s true some kind of pest control substances like sulfur have been in existence for millennia. Homer talks of disinfecting Odysseus’ palace with sulfur. And my father used sulfur to fight disease in his grapevines. However, “pest control” in 2018 is not the pest control at the time of Homer. In fact, pest control did not exist then. The natural world was sacred to the Greeks. The notion some form ...