While the trees in your backyard are good for the environment and look beautiful, they could present a danger to your home under the wrong circumstances. This task is typically beyond the capabilities of the average homeowner due to its dangerous nature, so it’s best to leave this task to a professional. In some cities, it’s even illegal to remove a tree yourself.

Pruning trees during the summer can be a bad idea because the new growth will take place during the hottest months of the year, which can stress your tree out. Similarly, pruning during the early fall can be a bad idea, too, because you’d be stimulating new growth when most trees are aiming to go dormant. 

Pruning recommendations will vary by the type of tree, but generally, waiting until winter to prune your trees is a good idea.

Early signs that a tree is struggling include premature leaf shedding and lesions or other strange markings. Peeling bark, dead or rotten branches on the ground, and a conspicuous lack of leaves can all be signs that a tree has started to die. By the time a tree starts leaning, it’s usually too far gone to save.

You can find pruning paints and sealants for trees, but you shouldn’t use them on a topped tree. Coatings like these often inhibit the tree’s healing process. An important exception is if there are dangerous fungi nearby that the tree is particularly vulnerable to, like oaks and oak wilt. Sealing cuts can help prevent fungi from taking root.