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In most cases, you should not use a pruning seal on trees after trimming. Applying a sealant can interfere with the tree's natural healing process, and it does not guarantee protection from pathogens. Instead of sealing the cut, the best practice is to support the tree's natural recovery by providing it with plenty of water and a dormant-style fertilizer. However, there are exceptions. Pruning seals may be recommended for very vulnerable species, like elm trees, in areas where dangerous diseases such as Dutch elm disease are prevalent. In these specific situations, the protection offered by a sealant can outweigh its downsides. For advice tailored to your situation, especially after cutting large branches, it is best to consult a local tree trimming professional.

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.

Once you confirm a tree is dead, you should remove it. Dead trees eventually fall, and larger trees in particular can cause damage to rooftops, fencing, flowers, and other objects. As we mentioned, letting decayed wood stay in your yard also invites risks to the surrounding landscaping and vegetation.

You may wonder whether tree removal is tax deductible: Tree removal is not tax-deductible for homeowners unless it's related to a federally declared disaster. In that case, the cost may qualify as a casualty loss. However, if you own a commercial property, like a rental home, tree removal could be deductible if it's necessary for safety, maintenance, or part of a larger capital improvement project, and you must hire a professional tree removal service and keep documentation. Always consult a tax professional beforehand to see if you qualify.