Numbers and percentages of green ash (Fraxinus pennsylvanica) trees of different origins damaged by European hornet—1984
| Tree Origin | ||||||
|---|---|---|---|---|---|---|
| Planting | Northern Ave. January temp.below 0°C | Southern Ave. January temp. above 0°C | ||||
| No | No. damaged | % damaged | No. | No. damaged | % damaged | |
| FP-1 | 113 | 19 | 16.8 | 45 | 33 | 73.3 |
| FP-2 | 124 | 4 | 3.2 | 48 | 8 | 16.6 |
| FP-3 | 72 | 17 | 23.6 | 19 | 9 | 47.3 |
| FP-4 | 90 | 26 | 28.8 | |||