Title: Diagnose tree disorders.
Course: Community Forestry and Tree Management (18502-III) > Section: Investigating Tree Disorders

Diagnosis may include

- soil sampling
- a review of climate data
- determination of growth rate
- field observation of signs and symptoms
  - precipitation
  - soil pH levels
  - leaf chlorosis
  - leaf scorching
  - crown or branch dieback
  - bark injury
  - insect activity
  - wet or sticky substances oozing from the bark
  - stunting of growth
  - circling and girdling roots
  - cankers

- lab examination of plant or soil samples.

Process/Skill Questions:

- How does soil pH relate to the development of tree disorders?
- How does soil compaction occur and affect tree development?
- What types of useful information should be collected to assist with diagnosing tree disorders?