Fine-twig dieback rating classes.
| Class | % Dieback |
|---|---|
| 1 | 0%–1% |
| 5 | 2%–5% |
| 10 | 6%–10% |
| 15 | 11%–15% |
| 20 | 16%–20% |
| 25 | 21%–25% |
| 30 | 26%–30% |
| 35 | 31%–35% |
| 40 | 36%–40% |
| 45 | 41%–45% |
| 50 | 46%–50% |
| 55 | 51%–55% |
| 60 | 56%–60% |
| 65 | 61%–65% |
| 70 | 66%–70% |
| 75 | 71%–75% |
| 80 | 76%–80% |
| 85 | 81%–85% |
| 90 | 86%–90% |
| 95 | 91%–95% |
| 100 | 96%–100% |