Overall frequency of miscellaneous instructional topics in the syllabi of 68 collegiate arboriculture courses taught in the U.S. Syllabi were compiled in 2009 and comprise 41 courses from two-year programs and 27 courses from four-year programs.
| Instructional topics | Topic frequency in course syllabi (%) |
|---|---|
| Business issues | 9 |
| Report writing/estimates | 9 |
| Appreciation for trees | 7 |
| History | 7 |
| Nursery practices | 7 |
| Organizations | 6 |
| Client relations | 4 |
| Ethical issues | 4 |
| Girdling roots/collar excavation | 4 |
| Professional skills development | 4 |
| Current topics | 3 |
| Grounds maintenance | 3 |
| Personnel management | 3 |
| Storm response/damage | 3 |
| Vertical/Radial mulching | 3 |
| Christmas tree production | 2 |
| Consulting | 2 |
| Fire management | 2 |
| Grafting/Budding | 2 |
| Literature awareness | 2 |
| Planter box bedding | 2 |
| Supervisory duties | 2 |
| Volunteer coordination | 2 |
| Windbreaks/Shelterbelts | 2 |
| Winterizing plants | 2 |