Apparently, tityus and elaphus can live in pine trees that has become very decayed. I've heard that pine sap in the tree is responsible for killing larvae so I guess the really decayed woods don't have saps in them.I'm surprised it was a pine tree..? Doesn't pine secret something that kills a majority of larvae???
Did you use ALL pine wood, or did you have it mixed in with other types of wood?I see okay..the reason I ask is because when I first started rearing early last year I accidentally used decayed pine instead of oak and 3 out of 4 tityus larvae died. The other survived just barely and the wood was fairly decayed and baked to kill anything else off, but I suppose it wasn't enough.