Tree planting | 98 | ANSI standards | 79 |
Tree pruning | 97 | Herbicide/pesticide application | 78 |
Tree selection | 95 | Bidding/estimate | 78 |
Tree soil and water relations | 93 | Public relations | 76 |
Tree structure and decay identification | 92 | Public speaking | 75 |
Plant insect identification | 92 | Landscape design | 78 |
Tree identification | 90 | Benefits and values | 75 |
Preserving trees during construction | 89 | Climbing practices | 73 |
Tree risk management | 88 | Chain-saw operations | 73 |
Tree anatomy and physiology | 88 | OSHA standards | 73 |
Tree nutrition | 85 | Street tree ordinances | 73 |
Safe work practices | 85 | Computer science | 73 |
Ethics | 84 | Personnel management | 73 |
Urban forest management | 80 | Tree inventory | 71 |
| | Small business management | 70 |