I'm at my wits end all my plants are infested with lil catapillers of all sizes and they are doing alot of damage ive tried BT,malathion,pyrethren and spinosad. Spinosad seems to work best as nothing else had any affect but still its not good enough ive still got alot of em popping up and I can't keep up with the damage because I have 17 plants and they are all super cropped and big I need a solution please help me! I know there has to be something I can do, I mean what do the big farms do? I need help please!!