Biologists have disproved the myth about the ability of trees to communicate through a mushroom network.

Canadian biologists conducted a meta-analysis of 26 studies and concluded that trees are not able to transmit signals to each other through an underground mushroom network. So they refuted the popular point of view of their colleagues. Also doubtful was the assumption that mature trees transfer nutrients to seedlings through an underground fungal network. Such streams do exist. But there is no evidence that they are impossible without mycorrhiza. That is, fungi do not affect plant growth. In addition, no work has supported the idea that trees send insect damage signals through the fungal network.