Norway maples with borer damage in the transplanting portion of the study.
| Treatment | Number of trees | Borers in live trees | Borers in dead trees |
|---|---|---|---|
| 1. Flush-cut pruned | 15 | 5 | 3 |
| 2. Target pruned | 15 | 5 | 4 |
| 3. Deep planted | 15 | 0 | 0 |
| 4. Trunk injury | 14 | 5 | 1 |
| 5. Root injury | 15 | 6 | 1 |
| 6. Trunk injury and deep planted | 15 | 0 | 0 |
| 7. Recommended procedures | 15 | 6 | 1 |
| 8. Street trees | 15 | 1 | 0 |