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How to Check a Tree's Health
From your Forestry Guide

A tree health inspection sheet is an evaluation tool that calls attention to health changes. Here is how to do it.

Difficulty Level: Easy    Time Required: 5 minutes

Here's How:
  1. Start permanent tree inspection sheet for each tree.
  2. Record these five characteristics: new leaves and buds, leaf size, twig growth, trunk deformity, crown dieback.
  3. Make a note of any discoloration of leaves over three years - a yellowing of leaves could mean problems.
  4. Leaf size and shape should be recorded. Small leaves and abnormal shaped leaves are a problem.
  5. A reduction in the extension of shoots should be noted and is a reliable clue that the tree's health has changed.
  6. Deformed growth, mushrooms, and conks on the trunk should be noted.
  7. A dying of the canopy or individual limbs should be recorded.
  8. Take action with appropriate treatment when a problem is developing.


  1. Insect activity and spotted, deformed, discolored or dead leaves or twigs, should be noted and watched closely.
  2. If you are uncertain as to what should be done, report your findings to you local ISA Certified Arborist or State Service forester for advice on possible treatment.

Related Information:

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