FYI - I will be doing my 2nd treatment tomorrow, 1st treatment was done 14 days ago following instructions EXACTLY, and measuring VERY carefully. 1st treatment seemed like it killed all of the red bugs, but about a week after the 1st treatment I found just a handful (5 or 6) that apparently survived. I also agree 1 treatment isn't enough, and would hate to see these little devils become immune to this drug. (Although I'm not sure that's possible. I know there are strains of bacteria that are resistant to certain medications, but that is *bacteria*. I would think it would take many, many generations of these little bugs before they start to develope any immunity. Example - we've been using the same basic poisons to kill fire ants, roaches, etc with for a LONG time and they still work. May have to use a slightly higher dose now though)