This is a summary list. Each Way to Hurt Trees has its own related blog post. Any of these ways could kill a tree. All are bad, and it’s hard to prioritize them into a “top 10” list.
Can you imagine trying to live while drinking oil-y water? In trash? However, there's praise for Tree Protectors.
"Wait" you say. "Aren't we supposed to get them off of the grass?
I don’t want to list all the ways that people often do transplanting badly. I would rather write out how to do it well. If you read carefully, you’ll have a high chance of success.
You can't live for more than a day or so without water. Trees need a regular supply of water.
Cutting any trees or even clearing a piece of land isn't just the sad loss of many trees, but surrounding trees and the ecosystem are in peril because of it.