I have a paper on this site about Powdery Mildew. I always say, "don't get it in the first place." Then I say, "get rid of it as quickly as possible."
Powdery mildew is usually restricted to the leaves of cannabis. There are two different fungi that cause Powdery Mildew:
1. Sphaerotheca macularis
2. Leveillula taurica
Both produce lots and lots of conidia, and spread by the slightest breeze to sites of secondary infection. Losses increase as plants mature.
Symptoms: Early-raised bumps or blisters on upper leaf surfaces. From these areas the powdery mycelium arise. Mildew can remain isolated in irregular pustules or develop all over the entire leaf. Leaves soon look like they were dusted with flour. Infected plants remain alive, or they prematurely yellow, brown and die. If the disease runs its course, black specks (fungal cleistothecia) appear in the powdery mycelium.
You need magnification of at least 80x power (100x would be better). Conidia and cleistothecia and L. taurica conidiophores emerge through stomates of the leaf.
Powdery Mildew affects the leaves not the buds.
If you have any fears, put your bud (s) in your oven for five minutes at 302 degrees F. This will kill: fungus, mold, microorganisms, spores.
My best recommendation is that you not have mold or mildew or any fungal disease in the first place..........................
I read this on another site..hope this help....