Maybe that is why he has a 12 foot area that he dug out that is fenced off with a bunch of leaves on top. He is probably colonizing whatever this dust is made of to produce more and leaves are notorious shelters for insect larva. There is also a possibility of using maggots too because maggots are worm like larva too, which would explain his constant use of manure. When my stepson use to live with me, he complained that he would constantly smell manure when he went to BBQ. These people are sick.