Are these signs of PM or some other issue?

[DURBANPOISON.AAA]

Heyy Fellow Growers

I’m getting ready to flip to flower in about a week or two & noticed some white marks/spots on just a few of my plants leaves. I know there are a few leaf tips that shows some nute burn but I am not really sure whether the white parts could be the start of Powdery Mildew & if I should maybe do a spray before flipping to flower?

These are photoperiods being grown indoor & the plant that shows the most of these marks & damaged leaves is the plant that was fimmed.

I am trying to figure out whether a spray is needed or whether I should just go ahead and flip?

Your advice would be highly appreciated.

 

[HerbalEdu]

just look like your everyday random damage on the leaves not pm.

i wouldn't spray anything and just go ahead and flip.

 

[Glomus]

Could hurt to spray with something light and natural. But I dont think its PM. check for bugs. Could be nothing.