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Dutch elm disease can’t harm humans. In fact, according to Cal Fire, bark beetles aren’t even typically dangerous to trees unless that tree is already weakened. The problem comes when Dutch elm disease kills a tree. That tree is more at risk of falling and catching fire, which can pose a serious threat.

Licensing requirements for arborists, also known as tree surgeons, vary by state and municipality. Many areas require a license, which often involves specialized education and experience. Even if not mandated, it's wise to hire a licensed professional as they tend to have more experience. Beyond licensing, look for certifications from organizations like the International Society of Arboriculture (ISA) or the Tree Care Industry Association (TCIA), as this indicates a higher level of expertise. Certified arborists must typically pass a comprehensive exam. Always confirm that the arborist has a business license and is fully insured to protect yourself from liability. Seeking positive recommendations from local homeowners is also a good step in finding a qualified professional.

The ideal depth of a tree notch depends on the tree, but it should usually be between 20% and 25% of the tree’s depth. However, if the tree is leaning towards the direction of the notch, it can be cut more shallowly—at as little as 10% of the depth. When the tree is leaning away from the direction it needs to be felled, you can cut deeper, closer to 30%.

Grinding down a tree helps reduce the risk of foundation damage and pests and even helps your home’s curb appeal. Stumps can also be a safety hazard. If grass grows above the stump and someone else mows your yard, they may be in for a rude awakening when they accidentally hit it.