They would probably be very easy to culture them. One bad thing I have actually tried to feed them to my animals and every one of them took it in there mouth and spit it back out. The species i gave them to are; pacman frog, American bullfrog, cane toads, and African bullfrogs. These are some of the most prolific feeders out there and will go for anything that moves and they all spit out the stink bugs and wanted nothing to do with them. Not to mention the stink bugs shell is indigestible. so even if they did actually eat them and like them, they wouldn't get much out of them.