TREE EDUCATION

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Watch Out For These Common Signs Of A Hazardous Tree

May 27th 2025

Healthy, structurally sound trees add to a property's natural beauty, provide shade, and can even increase a property's value. However, when a tree's structure is compromised due to damage, disease, or neglect, it can quickly become a liability. Unhealthy or unstable trees can fall at any moment, making them hazards that pose serious risks to both people and property. Because of this, hazardous trees should be removed from residential and commercial properties as soon as possible. Below, SkyFrog Tree Service outlines five of the most common signs that a tree is hazardous, so you can schedule tree removal services as soon as you recognize them.

SkyFrog Tree Service is a fully licensed, insured, and industry-certified tree care company serving all of North Central Florida! Need emergency tree removal? Contact us today to request a free estimate!

Cracked Bark: An Indicator Of Internal Stress

Cracked or split bark around the trunk of a tree is often an indicator of internal stress and structural instability. Worse yet, cracks make it easier for fungi, pests, and excess moisture to get into your tree, weakening it further and accelerating its decay. While small cracks may be purely cosmetic, large or deep cracks — particularly around the tree's base — are a sign your tree may already be failing. If you spot large cracks on one of your trees, have a certified arborist with SkyFrog Tree Service evaluate it to determine if it should be removed from your property.

Excessive Lean: What's Normal & What's Not

One of the most glaring signs that a tree may be hazardous is when it slants at a precarious angle. While some trees naturally grow with a slight lean, a newly developed or excessive lean is cause for concern and often indicates underlying issues. If a tree suddenly develops a tilt, especially when accompanied by exposed roots, soil displacement, or trunk flare, it's likely a sign that your tree is unstable or structurally unsound. As a general rule of thumb, if a tree is leaning more than fifteen degrees, especially in the direction of a building, you should contact a professional arborist to assess the risk.

Widow-Makers: The Dangers Of Dead Branches

Dead or dying branches, also known as widow-makers, are easy to spot and are often the earliest visible sign of a hazardous tree. To identify a dead branch, look for a lack of leaves, discolored bark, peeling, and a generally brittle appearance. Not only are dead branches unsightly, but they're also significant safety concerns. Dead branches could fall at any moment, and if they're large enough, they can cause serious harm to both people and property. These branches are especially dangerous during storm season in North Central Florida, as the strong winds are very likely to knock them down or send them flying. If you notice dead branches on your tree, don't hesitate to schedule tree pruning services.

Cavities: How To Tell If They're Harmless Or Hazardous

Tree cavities form when decay hollows out sections of a tree's trunks or branches. However, not all cavities are necessarily cause for concern. While some trees with small cavities are capable of remaining stable for years to come, large or numerous cavities can weaken a tree's structure and increase its likelihood of falling. If you notice a cavity forming on one of your trees, you should immediately contact an arborist for help determining whether the tree requires treatment or should be removed from your property.

Cankers: Symptoms Of Disease & Damage

Cankers are dead or sunken sections of tree bark that are often caused by damage or disease. These weakened sections of a tree make it more vulnerable to breakage in the affected area and can cause a tree to collapse. In general, you should contact an experienced arborist if a canker extends halfway across a tree's circumference, especially when combined with other issues such as cracks or cavities. Fortunately, regular tree pruning can help prevent smaller cankers from developing into significant problems down the line.

Have A Hazardous Tree? SkyFrog Can Help!

Knowing how to identify the warning signs of a hazardous tree is only the first step toward protecting your property and preventing costly damage. The second step? Contact SkyFrog Tree Service for professional tree care services and solutions!

Whether you need a tree removed from your property due to safety concerns, an upcoming storm, or simply for looks, you can count on your Gainesville tree care experts! For professional tree care and hazard assessment, contact the certified arborists with SkyFrog Tree Service today!