桉树紫斑病无人机防治试验

Experimental Application of Drones for Controlling Eucalyptus Purple Spot Disease

摘要: 桉树紫斑病(Septoria mortarlensis)是桉树枝叶主要病害之一。为探索桉树紫斑病防治技术，采用大疆T100S植保无人机在广西平南县同和镇开展空中撒药防治试验。2026年3月28日施药，戊唑·咪鲜胺(40%) 600 ml + 吡唑醚菌酯(25%) 600 ml + 清水150 l；飞行高度离树梢5米，飞行速度3.5~4米/秒，喷幅宽度6~7米。5月12日调查防治效果为76.02%，有效地保护了桉树新梢和新叶，林木正在恢复正常生长。试验结果表明，应用无人机防治桉树紫斑病是可行的。

Abstract: Eucalyptus purple spot disease (Septoria mortarlensis) is one of the main diseases of eucalyptus branches and leaves. Exploring techniques for controlling Eucalyptus purple spot disease, DJI T100s agricultural drones were used to conduct aerial pesticide application trials in Tonghe Town, Pingnan County, Guangxi. Pesticide (Tebuconazole∙Prochloraz 600 ml + Pyraclostrobin 600 ml + clear water 150 L/per hm²) application was on March 28, 2026. Flying altitude was 5 meters above the treetops. Flying speed was 3.5~4 meters per second. Spray width was 6~7 meters. Survey prevention and control effectiveness was 76.02% on May 12. This test effectively protected eucalyptus shoots and new leaves. The forest was gradually returning to normal growth. The test results indicated that using drones to control eucalyptus purple spot disease was feasible.