I only have 2 things I must fight and spray for every week to get a clean crop. Powdery Mildew and Caterpillars. PM is easy enough as high PH water will do the job and is as organic as it gets. 1 tablespoon baking soda to 1 gallon water. Drench spray once a week the entire life of all outside cannabis. Caterpillars use BT Thuricide at minimum ratio once a week starting August 1st. Do not miss even 1 treatment as the tiny caterpillars get deep in the bud and doesn't eat any treated leaf. They have to eat some, and it gives them terminal indigestion. Spray once a week as BT is destroyed by sunlight in a few hours. BNW