In experiment 3, trees were treated on 11 June 2013. The treatments included TREE-äge plus propiconazole (PPZ), TREE-äge with verbenone and green leaf volatile (V/GLV) to deter MPB attack, and untreated controls. Change in tree condition and percent tree mortality were observed over time in this experiment. Evaluations of trees included rating the canopy qualitatively as green (live), fading (stressed or dying), or faded (dead). Evaluations were conducted at 14 months (on 19 August 2014), at 16 months (on 15 October 2014), and at 28 months after treatment (on 21 October 2015). Final evaluations were conducted on 21 October 2015.
Treatment | Evaluation date | % mortality |
---|---|---|
TREE-äge/PPZ | 19 August 2014 | 0% |
15 October 2014 | 0% | |
21 October 2015 | 20%* | |
TREE-äge/V/GLV | 19 August 2014 | 10% |
15 October 2014 | 10% | |
21 October 2015 | 20% | |
Control | 19 August 2014 | 100% |
15 October 2014 | 100% | |
21 October 2015 | 100% |
↵*1 fading.