Results for cut-tree treatments in 2001 tree-of-heaven trialz.
| Means for sproutsv | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Vigor mean over all treesy,x | Percent of trees with sproutsw | Vigor | Number | Height (m) | |||||||
| 2002 | 2003 | 2002 | 2003 | 2002 | 2003 | 2002 | 2003 | 2002 | 2003 | ||
| Cut | Glyphosate | 2.5 b | 4.1 b | 33.5 b | 40.8 b | 7.5 | 9.9 | 3.9 | 2.9 | 1.0 | 2.5 |
| stump | Imazapyr | 0.0 c | 0.6 c | 3.1 c | 9.8 c | 0.5 | 6.3 | 0.0 | 2.8 | — | 0.7 |
| Triclopyr | 1.0 bc | 0.5 c | 21.0 bc | 6.7 c | 4.3 | 7.5 | 1.8 | 1.5 | 0.4 | 0.6 | |
| Cut control | 8.3 a | 7.4 a | 85.7 a | 85.7 a | 9.7 | 8.7 | 7.3 | 6.0 | 1.1 | 2.4 | |
| Stump | Glyphosate | 6.7 a | 6.6 ab | 85.7 a | 92.9 a | 8.0 | 7.1 | 5.5 | 4.2 | 0.8 | 1.7 |
| injection | Imazapyr | 0.9 b | 1.5 c | 35.8 c | 32.1 c | 2.1 | 4.0 | 6.1 | 6.3 | 0.2 | 0.7 |
| Triclopyr | 4.8 a | 5.0 b | 60.7 b | 62.5 b | 7.9 | 7.7 | 3.3 | 2.4 | 0.4 | 1.2 | |
| Cut control | 8.3 a | 7.4 a | 85.7 ab | 85.7 ab | 9.7 | 8.7 | 7.3 | 6.0 | 1.1 | 2.4 | |
↵zAll evaluations made in August 2002 and 2003. Values are means over all application timings. Within each treatment group, values followed by the same letter are not different at α = 0.05. Cut control values were used for separate comparisons with cut stump and stump injection treatments.
↵yVigor is a visual evaluation scale where 0 = dead, 10 = healthy.
↵xDifferences determined by analysis of variance and Student-Newman-Keuls test.
↵wDifferences determined by logistic regression.
↵vOnly for trees with resprouting.