Present fee structures compared to mean net income by reporting Kansas arborists (1978).
| Operation | Adequate | Inadequate | ||
|---|---|---|---|---|
| Frequency | Income | Frequency | Income | |
| Pruning | 13 | $20,000 | 9 | $ 5,722 |
| Tree removal | 13 | 14,538 | 6 | 5,416 |
| Fertilizing | 11 | 18,681 | 6 | 6,083 |
| Spraying | 9 | 14,666 | 8 | 13,750 |
| Stump removal | 10 | 15,350 | 5 | 3,800 |
| Cavity work | 7 | 15,171 | 3 | 8,333 |
| Grade change | 4 | 35,250 | 3 | 8,333 |
| Line clearance | 9 | 14,000 | 2 | 8,500 |
| Cabling/bracing | 10 | 19,300 | 3 | 8,333 |