week 7 of flowering powdery mildew is back rep offered

whats up guys i need some advice i got my babies at almost the end of week 7 and the powdery mildew is back on the outside of the cannopy and is moving inward. Now i left the extractor on full time since finding the problem to make it as dry as possible. I have been spraying them down with protector by advanced nutrients and it has been working.

Since im in week 7 and they finish on week 9 i was debating on spraying them with protector to wash off or to just spray them with plain water? what u guys think i should do?

bummppp..........

bump........