No Spider mites Zandor,
cnd411, I took your idea by increasing air circulation, ventilation and removing infected foliage. I found that when I was cutting back some of the leaves, that it made scene.
More air flow and unwanted leaves, and the leaves that had the grey fuzz on them had another leave on top of it, like it was smothered. Witch goes back to air flow or good circulation....

The Mix , what's the ratio, roughly