I came across some powdery mildew on top of one of my plants. How do u fix this. Sent from my Z981 using Tapatalk
This is what I've used for years to control Powdery Mildew on my Cannabis Potassium Bicarbonate a sister compound to household baking soda it's about as low risk as you can find. I spray about once a week. 1 tablespoon per gallon of water. Local Hydro shop stocks it. BNW