Growing mushrooms

every one knows that mushrooms that grow in the wild are poisonous,but the ones most people eat are grown on farms if someone decided to use chemicals to kill the mushroons in a given forest.how would this affect the forest ecosystem??
please give me...

your opinion it wld help
thankx

Well mushrooms and other fungus help to break down decaying matter, this wouldnt happen as fast (would still happen as mushrooms arent the only thing that do this) and there must be some organisms that consume wild mushrooms, obviously they would lose a food source and lots would die off.