Prions are amazing. I saw a TV show
(so I am an expert) about the Prions that cause Mad Cow Disease. They burned the prion tainted meat to ash, and it was still contagious. They put it in a strong solution of acid and even chlorine and it was still contagious. They put it in the soil in a growing environment and it took many months or years for the prions to be destroyed.
So just sprinkle the stuff on the ground and it will infect every plant eating animal and work it's way up the food chain to humans.