Looks like you cut off the most infected part which sometimes is all you need to do to stop it spreading fast. If you can separate the one with PM from the rest that’ll be a big help too. I like to put a fan on at night when the humidity spikes if that’s an option.
With the pests I highly recommend JWA, I had constant issues with spider mites on my outdoor grow and it works wonders. I’ll post Tinytuttles link, very easy and cheap to make and lasts a long time.
Nice spread out canopy though mate, should be a good yielder.
You been getting in to that ground swell that hit this week bra? I saw lowers was pumping yew 