About 2 weeks ago I checked my roo for "bugs". I found some white bugs and black bugs on his back side. I dusted him all over with DE and thought that would kill them all. DH and I went out tonight to see if they were gone and I noticed a big marble sized clump of what I thought was white poop. I looked closer and realized it must be a giant egg cluster. I dusted him again with DE. Is there anything else I can use that'll KILL these things? He's separated from my girls until they get older and I don't want him in with them until these mites or lice are ALL gone.