ASK ED MARIJUANA GROW TIP #43: DEALING WITH POWDERY MILDEW
POWDERY MILDEW: As you can see from the first photograph below, my plants were suffering from powdery mildew. I sprayed the plants with a solution of Ed Rosenthal’s Zero Tolerance Fungicide diluted slightly with 1 quart of water to a gallon of the fungicide, and added an ounce of Serenade® concentrate to the mix. I used a [...]
Ask Ed Marijuana Grow Tip #22: Powdery Mildew Infested Medicine
Dear Ed, I have a question about powdery mildew. My last crop, grown indoors in an 8′x 8′ growing area, 1000w HPS light, intake and exhaust fans and an oscillating fan, became severely infected with powdery mildew. I sprayed with Serenade every few days but to no avail. I have harvested all of the [...]
Ask Ed Marijuana Grow Tip #18: Powdery Mildew
Suffering from powdery mildew? That’s that white, powdery growth on top of the leaves—it almost looks like flour– it can kill your plants. Here is the simplest way of getting rid of it: -Go to your local garden shop, or nursery, and buy a bottle of potassium bicarbonate – Mix an ounce of potassium bicarbonate [...]
Ask Ed Marijuana Growing Tip #2: Keeping The Plants In Your Garden Dry
Many of our readers are growing outdoors and probably have noticed that the plant has changed from vegetative (growing leaves) to flowering (budding) and you now can see the white stigmas in full development. This is the time when plants are most vulnerable to powdery mildew and other molds- especially if it is humid, foggy, [...]
