I had to write something, this thread is hillarious.
I've done everything mentioned, and here are my takes:
Ladybugs are cool if you want to go COMPLETELY natural, but, they get into everything, burn up inside your hoods, stick in the carbon filter, plus they are totally having sex all over your plants. I tried them once, and never again.
Avid is industrial strength, used on outdoor farms.
Neem and it's variations, me like.
This is what I do.
I don't want Avid on my plants but it is freaking radical at what it does, so I spray down the whole house, everything,every room, before I start the grow, and follow up every 6 months.
In the grow room, I spray Einstein Oil (it's neem with other shit) right before flowering on everything in the grow room, plants, hoods, floors, walls, everything. I haven't had a problem since i've been doing this.
I've been meaning to check out azatrol, something to replace Avid, that stuff will make babies have more than 2 eyes, ears, arms, legs or something.