I left all the General Hydro products behind. Won't use them anymore even if they are the best on the planet due to the Scott's buyout. Hawthorne (a name Scott's uses) is buying up Cannabis products companies like
Gavita and General Hydro. They also have agreements with Monsanto regarding certain herbicides etc. Anyone that has ties or business arrangements with Bayer, Monsanto or Scott's is off my list.
Just my personal bias but I won't give any of my hard earned money to these guys.
I do use
Trifecta with some success but you have to be persistent with it and stay right on schedule. I use it for prevention mostly.
I only use plant oil based materials that are supposed to be totally non-toxic. I add habanero pepper extract to my
trifecta when the mites show up and it is much more effective with the pepper oil in it. However, you have to mask up cause it basically makes tear gas or bear spray when you add hot pepper oil to it.
Dee