mildew

Looking for product or mix-it-yourself IPM recommendations for powdery mildew prevention during middle to late flower. I use neem oil for my veg leaves but that is not an option now that budlets have formed. Is there anything that 1) won't leave an unpleasant residue, and 2) actually works for...

Oh no! I'm just a few weeks out from harvest and my beautiful Orion F1 Auto from Royal Seeds is under attack! At first I thought It might be either a manganese deficiency due to PH lockout or Leaf Seporia, then I settled on it just being a Calcium deficiency again due to ph lockout.. so I did a...

bought some clones and when they grew they had a dusty brown sort of layer of spores on the base of the stem and with the passing of days it festered upwards the plant affecting new growths,

Hi, The crux of this question is that I'm a first time grower and the weather got weird in New England at the end of August this year. Cold overnights, lots of AM dew. and I ended up cutting off some moldy buds and moving my operation inside my greenhouse earlier than I anticipated. So I was...