Went to lollipop my plants and found these little white balls everywhere. They are all towards the top of the plant and mostly on the stems. When I touch them they crumble which made me think they could be little pieces of perlite but they seem to uniform. One out of my 4 plants has it everywhere... then just a couple on another one. I have no sign of spider mite damage and see no mites what so ever, and I've battled them before so I know what to look for. What could this be? I just flipped into 12/12 exactly 1 week ago and I don't have any buds forming yet. Can I / Should I spray with Azamax (Thats the only thing I have right now) ?