

Remember to be thorough in your evaluation the absence of fungus growth does not necessarily mean the tree is healthy. Mushrooms growing from the base of the tree or under its canopy may be a sign of root decay, which could cause the entire tree to fail. Other warning signs of structural instability include cracks in the trunk or major limbs, hollow and decayed areas or the presence of extensive dead wood. However, those branches can be removed or reduced in length to reduce the risk while maintaining the tree’s aesthetic appearance. For instance, if a tree has large branches attached with tight, V-shaped forks, those attachment points are often weak and could break or fail during strong weather events. “By not paying attention to your trees, you are potentially placing your property, even your life, in jeopardy.” Tree defect cluesįortunately, one can often read the clues that indicate a tree is prone to failure.

“Many fatal accidents and millions of dollars in property damage can be averted if homeowners heed the warning signs of a hazardous tree,” explains Tchukki Andersen, BCMA, CTSP* and staff arborist for the Tree Care Industry Association (TCIA). When storms or high winds hit, limbs – and often whole trees – fall to the ground. Hazardous trees pose a danger to people and property.
