How can I diagnose problems with my tree?

Tree problems can be caused by pests, diseases, soil conditions, physical damage, or environmental stress. While some issues are easy to spot, many require professional assessment.

AC 063 26
AC 063 26

How can I diagnose problems with my tree?

Tree problems can be caused by pests, diseases, soil conditions, physical damage, or environmental stress. While some issues are easy to spot, many require professional assessment.

Early diagnosis improves the chances of successful management and can help to prevent the spread of pests and pathogens. 

HA Treedamage Rost Crack 2

Common signs of tree problems

Look for: 

  • Dead or dying branches
  • Leaf discoloration or early leaf loss
  • Cracks, cavities, or fungal growth on the trunk
  • Leaning or root lifting 
  • Unusual leaf spots, holes, or distortion 
HA Drought Dry Conditions Young Trees2

What might be causing the problem?

Possible causes of ill health in trees can include: 

  • Pests or diseases 
  • Compacted or waterlogged soil 
  • Drought stress 
  • Root damage from construction 
  • Old age or structural weakness 

What you can do first 

  • Note visible symptoms 
  • Take clear photographs 
  • Check whether the tree has been recently disturbed (e.g. digging nearby) 

Avoid carrying out major pruning or treatments without understanding the cause. 

When to seek professional help 

You should seek advice if: 

  • The tree shows significant decline 
  • There is a risk to people or property 
  • The tree is protected 
  • You are unsure what is causing the problem 

An arboricultural professional can inspect the tree and recommend appropriate action. 

Next steps