Man, I totally feel your pain. I've been through this problem so many time I can't tell you and it sucks BAD. I understand completely. That said, I hate to tell you this, but unless you want to contaminate your crop with chemicals or predatory anti-mite bugs, you're better off to just salvage what you can- maybe bubble-bag hash it or something like that, and start over. Sorry, truly, but I'm old and have been doing this for a REALLY long time, and in all honesty, that's how it is. Well, maybe one other "organic" possibility (which I've used successfully though it might be a bit risky, would be to put the plants into a COLD environment for a couple days. The mites will not survive cold (like around 45-50 degrees F) nor will their eggs, which by the way are not killed very effectively in my experience by much of any sort of chemicals or other sorts of treatments, and I've tried lots of them. Put your babies in a cold place after washing them down really well with a hose (outdoors?), and WAIT a couple days. If they start looking poorly, immediately either bring them back to warmer enviornment, or salvage what you can. Again, sorry for the bad news- been there & know it sucks bad. Only other option is concentrated Pyrethrins- best deployed as foggers, but you now got chemically contaminated weed. Your choice.
Last word on this.......your grow enviornment is contaminated and you are also introducing these buggers somehow. On your next grow, think of it as open heart surgery- on YOU- and proceed accordingly next time. Cleanliness is MANDATORY and must be observed in an anal way throughout your grows since prevention is basically your only option. Once the bugs arrive you're pretty much screwed unless you wanna have chemically treated crops, which I doubt. Also, only use either your own, un-infested clones or start from seeds in a hospital-like environment, e.g., filtered air in and filtered air out, no other plants introduced in the environment, no pets, strangers, clean clothes (if you've been outside), etc. You get the idea. I guess these are the prices we pay as professional growers, but it's worth it in the end, right? Sorry for the bad news, but let me know if I can be of any further assistance.
