树干注射
伊斯法罕市中心行道悬铃木树干注射
在公共空间零喷施的前提下，完成 1,200 株悬铃木刺吸性害虫防治。
- 处理株数
- 1,200
- 喷施用量
- 0 L
- 起效时间
- 3 wk
- 实施年份
- 2024
面临挑战
Plane trees on high-traffic routes were heavily infested with a sucking pest, but spraying a street with pedestrians and open-air cafés was simply not workable. At over 15 metres tall, full canopy coverage by sprayer was impossible anyway.
解决方案
The entire route was covered by trunk injection. Work ran during low-traffic morning hours without closing the street. Dose was calculated per tree from trunk diameter and logged, so each tree's history remains traceable in later years.
实施成效
Pest populations fell below the damage threshold within three weeks and stayed there for the rest of the growing season. No citizen complaints relating to spraying were recorded.