Overall frequency of major and supportive 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.
| Major instructional topics | Supportive topics | Topic frequency in course syllabi (%) |
|---|---|---|
| Pruning | 85 | |
| ANSI A300 | 13 | |
| Training/young trees | 13 | |
| Special techniques | 10 | |
| Power lines | 2 | |
| Disorders | 81 | |
| Diagnosis | 59 | |
| Diseases | 38 | |
| Insects/Pests | 37 | |
| Plant health care | 31 | |
| IPM | 15 | |
| Treatment of | 15 | |
| Chemical application | 10 | |
| Mammals | 3 | |
| Turf conflicts | 3 | |
| Risks/Hazards | 79 | |
| Cable/Brace | 41 | |
| Risk assessment | 38 | |
| Support systems | 21 | |
| Hazard remediation | 19 | |
| Cavity treatment | 9 | |
| Wound repair | 6 | |
| Guying/Propping | 2 | |
| Soils/Nutrition | 75 | |
| Fertilization | 57 | |
| Nutrients (management of) | 37 | |
| Soils (management of) | 19 | |
| Planting | 74 | |
| Large/Specimen tree | 15 | |
| Mulching | 12 | |
| Staking | 9 | |
| Trunk wrapping | 6 | |
| Site modification | 4 | |
| Climbing | 57 | |
| Knots/Ropes | 29 | |
| Rigging/Removal | 18 | |
| Aerial rescue | 4 | |
| Water relations | 56 | |
| Irrigation | 15 | |
| Safety | 53 | |
| ANSI Z133.1 | 9 | |
| Electrical hazards | 9 | |
| First aid | 4 | |
| OSHA | 2 | |
| Underground utility locates | 2 | |
| Tools/Equipment | 53 | |
| Chainsaws | 27 | |
| Chippers | 12 | |
| Aerial lifts | 9 | |
| Stump grinders | 7 | |
| Skidders | 2 | |
| Certification | 12 | |
| ISA | 10 | |
| State | 2 |