Mean percent decay in American elms by injection history, diameter class at sample height (DSH), and breast height (dbh).
Decaying elms | n | Mean % decay2 |
---|---|---|
Injection history | ||
Injected | 28 | 43 (27) |
Non-injected | 35 | 35 (24) |
P-value1 | 0.205 | |
DSH class (cm) | ||
II (100–125) | 8 | 23 (11)a |
III (125–150) | 14 | 27 (19)ab |
IV (≥ 150) | 37 | 48 (27)b |
P-value | 0.004 | |
Dbh class (cm) | ||
II (75–100) | 9 | 19 (10)a |
III (100–125) | 27 | 35 (26)ab |
IV (≥ 125) | 25 | 50 (25)b |
P-value | 0.005 |