Thomas Partridge wrote:While I am not Chris I will go ahead and reply with my opinion (please take with a grain of salt as that I am not expert).
Fresh mulch should probably never touch seedlings. They are very vulnerable to fungal infections and one of the tasks of mulch is to prevent things from growing from underneath it.
That being said, keep in mind that mushrooms are like fungal flowers so if you have them pop up that means the mycelium is well distributed. That is very good because that will pull nutrients from the ground underneath to the various layers of soil. Every time we see a fungal bloom we almost have a party - to us that means we are doing something right.
Chris Kott wrote: interesting amorphous yellow fungus spreading across the ground, and my potatoes died.
-CK