coh
Imperial Masterpiece
OK, did some reading after posting my last question. It sounds like avid is not really a systemic but more of a contact poison. Apparently there is some absorption into leaf tissue but it doesn't really move into plant tissues in large quantities like a true systemic would. So if Ryan's grow tent/room/whatever are still infested with mites, avid might reduce but not eliminate the problem unless other control measures (such as suggested by Crust) are implemented as well.