PMT is a non toxic treatment for Powdery Mildew. It is part of Canadian Xpress Induced Resistance strategy and stimulates the plant to ramp up its own defences against the disease. Powdery Mildew is a fungal leaf disease which is common in commercial greenhouses and is becoming more common in indoor gardening all around the world.
Left untreated, this disease will kill every leaf on a plant and destroy your crop. We highly recommend using PMT as a preventative treatment. As already described Powdery Mildew causes a lot of damage so the best tactic is prevention. Just spray PMT as per the instructions and permanently safeguard your plants against Powdery Mildew.