Man, I have been battling these mights forever. I hit them with Floramite prolly every 2 wks, it always appears to have worked, and then they come back. I was under the impression it had 22 day residual life, but i guess not. I bought it in 1 oz off ebay, I am curious if it is perhaps watered down? Any ideas? Argggggggghhhh....I so don't want to use Avid. Has anyone had success with predatory mites?