Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!
Like Armillaria (Honey fungus) or Ganoderma (Reishi) The former Kills live trees and although it is an entirely essential part of healthy forests where it comes from, even there it is not 'in balance', it just runs out of saplings to kill and the forest is spaced out at distances it cant cross (spreads by rhizomorphs and rarely by spores). It is a major killer of garden trees shrubs and woody plants as well as a major concern for foresters. Its edible but not good enouh to warrant the damage it can do. Ganoderma invades dead and dying tissue and causes a rot of the heartwood so the tree is useless as timber. It may causea rot of the supporting roots too so the tree can come down on a house if this is in suburbia - anyone you dont like?
Species that thrive around human habitatation - mulch beds, gardens, lawns parks etc probably be Ok. they may even benefit the environment by using a food source no other fungi can.
A quick google search on the species should bring up any concerns
Words like Parasite, white rot, brown rot, canker are generally bad though shiitake is one of those and it seems OK