Powdery mildew is a fungal infection that has the potential to dramatically reduce the yield and quality of your end product and potentially even destroy your whole crop if left untreated. PMT works through physical action by altering the pH of your leaf surface and PMT can also be used as a preventative treatment.Powdery mildew thrives in high humidity areas with little to no air movement; so decreasing the humidity and increasing the air movement within your grow area will help to hinder/slow the mildew’s development. PMT is also an effective product to prevent the onset of, so PMT can be considered as a double preventative treatment. PMT can also be used up to the day of harvest as it is non-toxic and safe to use around pets and humans.