hey all, so i got some clones from this guy. i had a bad feeling from before i even picked them up and knew i shouldn't of got them but i did. well, he said the clones are only a couple weeks old. Okay so on the leafs i see a little bit of white powder stuff. i can brush it off with my thumb. but sometimes a few specs stay on the leaf even after i wipe it off. is it correct to assume this is powdery mildew?
Yeppers. Green Cure is the "Cure" Potassium Bicarbonate. Found at most hydroponic stores or online. 1 tablespoon per gallon apply once a week. I grow outside and PM is just part of life here. It's on everything once you start to look for it. Household Baking soda will work in a pinch but the sodium is not as good for the plants. Sodium Bicarbonate. BNW