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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.

For safety reasons, leaning trees are best removed by a professional, as they may often tear away from the hinge, causing you to lose control over where the tree falls. If you choose to cut down a tree leaning slightly, avoid cutting off root protrusions before you start. Make your hinge a little longer than usual by cutting it deeper (up to 30% of the diameter) and applying a wedge into the felling cut on the side the tree is leaning. Stand away from the direction the tree leans while making your felling cut.

You can never truly stop a maple tree from growing taller, but you can rein in its growth by pruning. Proper pruning helps maintain a safe size for your tree without causing permanent damage. It’s important to start pruning a tree while it’s young, long before it becomes a problem. Otherwise, you may be left with too many hazardous branches to remove at once.

If an arborist is certified by the International Society of Arboriculture (ISA), the highest level of certification available is ISA Board Certified Master Arborist. According to the ISA, this credential is reserved for arborists “who have reached the pinnacle of their profession.” Check your arborist’s credentials before hiring to confirm their level of training and expertise.