White spots have started to form on the leaves...
Vegetative phase, 3-4 weeks of growth, pH 6.2, humidity 70%
The plant looks healthy and hasn't had any growth issues; it's a Blue Cheese RQS.
You leafs look all wrinkle and if that's the case. It's swings in PH. again, can't tell with pics, prob best to wait for some1 who has dealth with this. As I'm just beginning to guess now, sry.
Check underside of leafs. There'll be eggs left by them. It's very hard to see with them pics. Parts look like spider mite damage. And then powdery mildew. As it doesn't look like it's within the leaf more like on the surface.
Looks like a spray u used on some places. Maybe powdery mildew. But also spider mite can cause that damage that looks like that. Get a mag and have a close look. And before u turn on your life get down close turn on your light and if u have em, you'll sew them scatter, r should.