Fungus and mold control.

[Saturn]

I recently treated for it and found I had a little of something going, (mold or fungus) it turned white and died and fell off the plant.

Turned white, wouldn't wash off with water but fell off after a few days of sulpher vapor treatment. A couple little white spots no bigger than a pencil eraser, more like half the size.


I didn't see any signs of mold or fungus but apparently it was already starting.

What turns white and dies like that? Fungus?


Did I just drip something on my plants that dried white? I don't spray them except to treat for mites and I haven't done that for a week or so.

 

[BWC BayArea]

Did it look like white, dried granular circles? If sulfur killed it I'd guess that was powdery mildew. Does ur grow space have high humidity and/or ventilation issues? Low temps at night?