What Bug Sprays Are Safe to Smoke?

State regulators want to know what sort of chemicals marijuana growers apply to their crops. Scheduled to issue growing licenses in mid-August—less than five months away—the Washington State Liquor Control Board has reached out to industry professionals for real-world advice on what biocides local growers dust on their dope. In an e-mail sent last Friday, comptroller Mike Steenhout asked recipients to "provide a list of all pesticides or any other compounds that you would ever apply to a marijuana plant."