Floramite has worked wonders for me. Two applications about a week apart. Only in veg. Many will trash talk on the floramite avid and even the fungicide eagle 20. I try to never use them but if nukes are required i have a shelf i keep the artillery on. Make sure if you use floramite that you run a surfactant (pro-tekt is great) and you ph to 5.0. Apparently all foliars are supposed to be applied between 4.5 and 5.5 ph. This is why "indicate 5" is useful. If you want to avoid inorganic pesticides i recommend a neem oil treatment. 1 oz of neem to a gallon. 1 oz of pro tekt silica to a gallon. A splash of sm-90 as well. That foliar will wreck the mites eggs and make their food source less desirable. If you apply that neem foliar every 3 days for a couple weeks it should do the trick. That foliar makes an amazing preventative.