who do you call if a tree knocks down your power wire?
If my power wires were downed for any reason or by any means, I'd probably start by calling the power company. Wouldn't you?
As the property owner, you must remove the offending tree or the power utility will do so for you -- at your expense.
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them