Bees, this one is slightly OT because I am actually trying to cultivate woodloving shrooms, but there is a chemistry angle. It has been alleged that the turpene-rich resin in pine trees is a natural fungicide, and consequently inhibits shroom growth until the wood has aged or composted somewhat. (There is a slight inconsistency here, in that shrooms are one of the few living things that are capable of composting wood in the first place). I have some pine shavings from a woodworking place, and am contemplating methods of artificial ageing. So you look up the Merck, and it is not surprising to see that a number of NP solvents are likely to extract turpenes. But is this all there is to it? Things I am wondering here are whether EtOH would extract too much, whether heat would help, whether pre-freezing (to destroy cell walls would help), etc. Ta in advance.