On a walk through a park or your backyard, you may have noticed some strange-looking, three-dimensional bulges on a tree’s trunk. These growths are known as burls. Tree service specialists say the anomalies are common and often misunderstood. Here is a helpful guide on what burls are and when you should call the professionals if they’re found on trees in your yard.

Your Top 4 FAQ About Tree Burls

What are burls?

A burl is the equivalent of a wart on human skin. It is the grain of a tree that has grown into a round, oblong, or another odd shape from the trunk, roots, or branches. Burls come in a variety of sizes and textures with knots of smaller-sized wood protruding from them.

What causes burls to produce?

Tree service technicians say the main trigger for a burl formation is when trauma to the tree has occurred. Mold, an insect infiltration, and improper trimming can weaken the tree and cause an infection in the trunk, roots, or branches. The diseased area produces a burl, which typically remains on the tree until it is removed.

Are they bad for trees?

While burls may have strange appearances, generally, the growths won’t harm trees. In fact, depending on the burl’s size, tree service specialists say removal might actually kill its host tree. For the most part, burls are destroyed if the tree has already died or if the tree will be completely removed from the property. Certain tree species have been known to have long life spans even with burls present.

When should I call a professional?

If you notice visible signs of infection around the burl that are causing damage to the tree, call a tree removal professional. They can provide a thorough diagnosis on whether the infection has spread and if the burl should be removed. Because no two trees are alike, it’s advised not to trim the growth on your own. Doing so could kill an otherwise healthy tree.

Don’t despair if you spot burls on your favorite tree. Big Beaver Tree Service in Nicholasville, KY, specializes in the expert inspection and treatment of these unusual growths. The team of licensed technicians has the experience and specialty equipment to safely and properly care for compromised trees. It’s why residents and business owners have continued to call on the family-owned firm since it opened more than 30 years ago. Give the company a call at (859) 272-8548 for all your tree service needs, including pruning, trimming, and stump grinding. Visit the website for information on the full suite of services.