you sure its mites? i had the same thing happen a few months back, turned out it was just thrips. their young are little whiteish worm things that live on the bottom of the leaves, and the damage they leave from eating them looks very similar to mites. they are small, but visible to the naked eye. i hadnt seen thrips (or i did and just didnt know what i was seeing) like that before that instance
Unfortunately I'm sure it's mites. In the past I have never actually seen a mite on a leaf. 5 years ago I found out when I had webs on my buds on what I thought was a routine morning plant inspection. It was the single most horrifying thing I have ever seen in my garden. This time I pulled off 2 leaves that showed the most damage. Lots of eggs on one leaf and then an ugly fucking mite chilling all cozy like sucking the life out of my once lush foliage. The infestation seemed to be localized to one small section, but I sprayed the whole garden to be safe. I assume if I see 1 egg or 1 mite there are a thousands that I didn't see. Here are some pics. Cleaned up the drip tray area and tidied things up a bit. All 3 HID ballasts are operating at the super lumen setting which is a 15% increase in output. The 1000's are operating at 1150 watts and the 600 is operating at 690 watts for a total of 2990 HPS watts. The quantum board is operating at full power at 660 watts. Total wattage over the garden presently is 3650 watts. Maintaining temperatures have been much easier lately since the heat wave has ended. Smooth sailing until next summer.
Hash plant showing some nice flower development.
Venerate. Used this last night full strength @ 5tbsp/gallon. The little bottle of Forbid 4F was purchased on ebay for about $30. I will be using this moving forward for all plants entering the flower room prior to the 12/12 flip. No more mite problems moving forward. I will use the Venerate at 2.5tbsp/gallon every 7 days until harvest in about 30 days.
I buy the sample size 1 oz of Forbid 4F because an 8oz bottle of the stuff is over $200. The maximum application rate is .3ML/gallon. It's incredibly strong and only requires one application. I don't think I have ever even used half of the 1 gallon the .3ML made up. Great value for the $ with incredible knock down power. I can't emphasize this enough:
Do not use this if you are already in flower. This is only to be used for plants in veg or plants that are just about to enter the flowering phase. It has a 6 week half life before it metabolizes out of the plant tissue. This is as nasty as you can get for pesticides. Respirator and goggles required.
Blue dream babies moving right along.
Maui waui chunking up. She produces small flowers, but they are rock hard and extremely heavy. They weigh twice as much as a flower of the same size in hash plant. Great for commercial interests. Hash plant sucks donkey dick. Big buds that grow fast, but they do not have the rock hard density or heavy weight of maui.
The canopy.
Tidied up below the canopy around the drip trays and such.