OK, I see it is a true bug, order Hemiptera.

Fire away! I hate 'em too. Use a "total release" aerosol bomb with pyrethrin or related organic pesticide. Inside a closed barn it will be prety effective. You can try to bum one from a professional exterminator if you can't find one for sale elsewhere.

I thought you might mean the "stink beetle" which is often called a "stink bug". The beetle, genus Eleodes, can live for years and they even have personality. I keep some for pets occasionally.