Leave Problem

Here's some info on my grow:

Indoor
Soil
CFL/LED
Small Box
SCROG Grow
8 Wifi OG Plants
Vegged for 31 days
9 Days into Flowering

99% of the plants look amazingly healthy. One or two plants have some leaves with spotting on the top. A few have some white stuff on the underside.

Check out the pics. I'm wondering if these are spider mites or some PH problem (pics match other pics I've seen for both mites and PH issues). I have not seen any bugs of any kind in the grow box. If they are mites, has anyone had success with lady bugs? I could spray with neem oil, but hate to do that during flowering. Also, because of the SCROG, it would be tough to hit all undersides of leaves.

Any advice is greatly appreciated.

Looks like mites to me. Forget neem, go for Mitey Wash.

Yeah, that's what I figured looking at other posts. Already sprayed with neem, but I'll get some Mitey Wash for round 2 (in three days).

Any tips on spraying with SCROG setup?

Sorry bruh. Happens to the best of us. I lost most veg/clone tent to case of thrips my 2nd/3rd grow. Ive made sure to try my hardest not let it happen again.

Update:

It's been 51 days since light flip. I estimate that I have 2 1/2 weeks max to go on these plants. However, despite spraying, lady bugs and predatory mites, I still have spider mites. Take a look at my photo and let me know if you think I should harvest now (with clear trichomes) or wait a few weeks and hope for the best. I have removed many of the fan leafs that had spider mites on them and now they're heading to the bud leaves.