While DIY tree trimming may seem straightforward, attempting care without proper training can permanently damage trees and create hazards. Professional tree arborists know how to correctly diagnose issues and apply the right treatments. Watch for these 5 signs it’s time to contact a certified arborist to care for your trees:

1. Visible Cavities or Rotting

Holes, hollows and pockets of rotting tissue indicate internal decay within a tree. Left untreated, decay can compromise structural integrity, eventually causing limb or whole tree failure. Only an arborist has the specialized tools like resistographs and tomography equipment to accurately inspect and assess the spread of interior rot. Based on the findings, they’ll recommend appropriate repairs, supports or removals to prevent damage.

2. Leaning or Tilting

If you notice your tree developing a lean or tilting to one side, it likely indicates root instability underground. Shallow or compromised roots are unable to adequately support the tree’s weight. An arborist can evaluate below ground using air excavation and root mapping technology. They may recommend underground bracing or guided straightening to rebalance the tree before the lean worsens or the trunk snaps.

3. Damaged Bark and Wounds

Bark damage from vehicles, equipment, animals or weather exposure leaves trees vulnerable to insects and diseases. Arborists treat wounds properly to prevent infection and stimulate callus growth. They remove loose bark, shape the wound site, apply fungicides if necessary and protect with dressings. Home applications like sealants often do more harm than good.

4. Poor Structure and Growth Habit

Without corrective pruning and training early on, many trees develop problematic structure, such as tight crotches prone to splitting or lopsided branching. Arborists diagnose structure issues and perform regular pruning to establish proper architecture that minimizes future hazards as the tree ages. Attempting to correct poor structure yourself risks severing stabilizing limbs.

5. Pest Problems

From beetles to bag worms, a professional arborist can identify any weird bugs or growths on your trees and diagnose potential pest problems. Trying to treat pests without an accurate ID can waste time and make issues worse. Arborists have extensive knowledge of treatment options for common tree pests that conserve tree health with minimal chemical use when possible. They target treatments to remedy the specific problem at hand. 

Don’t risk creating bigger issues for your trees by tackling issues you don’t fully understand. An arborist has the skills and equipment to inspect, diagnose and treat tree ailments using industry best practices. Contact a certified professional promptly when you spot any concerning tree symptoms. Preventative care maximizes the lifespan and benefits of your trees.