How aggressive are wine cap mushrooms?

I just received a 2lb bag of wine cap sawdust spawn today :).  I'd like to put them around in my wood chip garden beds but most of them are already colonized with various inedible mushroom species.  Are wine caps aggressive enough to be placed in these beds or should I try to find fresh wood chips for them?  I was kinda hoping I could just put them wherever and they would take over.  My wood chip pile is thoroughly soaked with rain and it's quite heavy to move.  I need to distribute the old chips before I can get another drop.  Any thoughts?  

Chris,

Congratulations on getting the wine caps!  Personally I always mix my new spawn into chips that have already aged, sometimes aged to the point that the chips are no longer blonde/light colored but a dark brown hue.  Obviously some microbial action has taken place.

Personally I think that you could go ahead and sow the spawn right into the chips already on the ground.  There might be a little competition from existing fungi, but I would think that 2 pounds of spawn would overwhelm any existing fungi.  

Wine Caps are pretty aggressive, eating woodchips ravenously.  I sow them mostly for the compost, and if that is your plan, I think you should be off to a great start.  I like to eat the mushrooms as well and I would think you should be able to get some of those as well.

Let us know how things work out!

Eric

Awesome!  Alright well there's a break in the rain today so I'm going to get out there and spread them.  Thanks for the help!