Number of target trees/ha (≥ 0.3 m [1 ft] tall) in wire zones and border zones of ten treatment units at the Green Lane Research and Demonstration Area in 2003 and 2004 (number of target trees per acre are given in parentheses). A second handcut unit (HC-1) was established in 2001 beneath the tower from a portion of a mowing unit (M-2); this portion could not be mowed because of rocky terrain.
| Treatment unit (replicate) | Wire zone | Border zone | ||
|---|---|---|---|---|
| 2003 | 2004 | 2003 | 2004 | |
| Mechanical units | ||||
| Handcut | ||||
| HC-1 | 4,199 (1,700) | 3,211 (1,300) | 1,482 (600) | 3,952 (1,600) |
| HC-2 | 3,582 (1,450) | 3,705 (1,500) | 4,940 (2,000) | 2,964 (1,200) |
| Average | 3,891 (1,575) | 3,458 (1,400) | 3,211 (1,300) | 3,458 (1,400) |
| Mowing | ||||
| M-1 | 988 (400) | 1,235 (500) | 1,729 (700) | 741 (300) |
| M-2 | 2,347 (950) | 3,829 (1,550) | 494 (200) | 741 (300) |
| Average | 1,668 (675) | 2,532 (1,025) | 1,112 (450) | 741 (300) |
| Herbicidal units | ||||
| Mowing plus herbicide | ||||
| MH-1 | 371 (150) | 371 (150) | 247 (100) | 1,235 (500) |
| MH-2 | 1,153 (467) | 1,235 (500) | 2,638 (1,068) | 3,293 (1,333) |
| Average | 762 (309) | 803 (325) | 1,443 (584) | 2,264 (917) |
| Foliage spray | ||||
| F-1 | 988 (400) | 865 (350) | 1,729 (700) | 3,458 (1,400) |
| F-2 | 371 (150) | 618 (250) | 988 (400) | 494 (200) |
| Average | 680 (275) | 742 (300) | 1,359 (550) | 1,976 (800) |
| Stem–foliage spray | ||||
| SF-1 | 247 (100) | 412 (167) | 494 (200) | 825 (334) |
| SF-2 | 988 (400) | 865 (350) | 247 (100) | 1,235 (500) |
| Average | 618 (250) | 639 (259) | 371 (150) | 1,030 (417) |
| All units | ||||
| Average | 1,524 (617) | 1,635 (662) | 1,499 (607) | 1,894 (767) |
| Mechanical units combined | ||||
| Average | 2,780 (1,125) | 2,995 (1,213) | 2,162 (875) | 2,100 (850) |
| Herbicidal units combined | ||||
| Average | 687 (278) | 728 (295) | 1,058 (428) | 1,757 (711) |