Well..... NO PEST STRIPS are probably one of the best things to use to rid you of your problem...Like Opie Mentioned, they are cheap, with no strings attached(LITERALLY) and it's odorless... I can honestly say they work because i too like other growers have had this problem before BUT i never heard of spending about 3,000 to kill the little bastards

As far as the ladybug method, I've heard of it, and I'm no Insect expert or Biologist but would a ladybug eat your leaves?

All in All, your all right, theres just different methods of how to solve your problems and just because you haven't tried a certain method then don't knock it...It works...And i understand what Zandor said about the impossibility of a Pest Strip Getting rid of a BAD INFESTATION.....

Peace