floramite works great but it is very expensive and a little toxic i think.. I used
avid (basically just like
floramite) before for the spider mites and it definitely worked...but it is kinda scary stuff and its pretty pricey as well. I bet your
floramite takes care of them...
but if it doesn't work, this is a great, cheaper alternative... Spectracide - triazacide. Pretty much fucks up any bugs in its path. Plus you can use a very small dosage, and I dont think it is as dangerous as the
floramite. It is also available at home depot, for like $20... I use sm90 and triazacide as a foliar spray. You can also water with triazacide to kill any and all root aphids. I havent seen a spidermite in over a year. I got aphids on some clones from boulder, and this shit knocked em out right away. I spray my rooted clones down, rapid rooter, roots and all before I transplant. I also foliar with it in veg, and usually water my veg plants at least one time with a small dosage, but not always.