Im getting rust, im on the 12/12 but they have not changed to flower yet, i applied trifecta crop control, and more ventilation to that room, will this solve my problem?
Hi mate I’m no expert by a long shot but that’s looking like a calcium deficiency to me. I’d recommended getting some cal-mag and putting it into your next feed. Hope this helps and good luck mate
I’ve read that If it’s mold it will wipe onto your finger and If it’s not mold, when you rub it there won’t be residue on your finger - which would be a deficiency