I honestly dont think spidermites (otherwise know as "The Borg") can be fully erradicated through predatory species. Predators do not eat mite eggs, so even if they are eating all the spidermites, your still going to be left with a whole new crop of em in a week or so. Spidermites procreation rate is so rapid that it is seriously an onslaught invasion when they arrive. Ive spent more time than I care to mention, trying to battle spidermites at previous grows, only to come to the realization that the battle was not worth fighting. For how long it took me to get rid of the invasion, I could have already cleaned the whole grow and started a new and probably be further along then if I had tried to fight the battle.

If your still in veg, you have a chance of being able to use products that can rid your plant of these pests. There is a product on the market called "FLORAMITE". It is one of the few products I can say WILL work as long as you are avid about keeping up with the procedures. Again this is something I would only reccomend to someone who refuses to start over and still has their plants in vegetation growth.

However, if your plants are already flowering and you have exposed calyxs, then it is already too late and there is nothing you can do (beyond predators).

But than at the same time you run the chance of the predators dying and getting stuck to the resins on your cannabis flowers. Not to mention, if the predators are eating up all the spidermites, they are leaving fecal matter around or on your plants, even if you cant see it.

Hope this helps brotha. Sorry to hear for the trouble, hope you can get it sorted out. Let me know if you have any more questions.

-Bryan:jointsmile: