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1、药环触杀用溴氰菊脂或杀灭菊脂、滑石粉、蓖麻油、石膏粉按1:1:20:40的比例混拌制成粉笔状毒笔,在树干或枝上画几个封闭的药环(也可用其他触杀剂原药画药环),可使害虫触杀致死。此法适用于冬季下树休眠、春季上树危害的各类害虫。 2、膜环阻隔在树干上适宜操作的位置上刮去5厘米宽的粗皮一圈,用5厘米宽的塑料膜带围一圈,接头处搭盖2厘米并用订书钉固定膜环(也可将膜带下端束紧上端翻
1, the ring contact with daisy chrysanthemum or daisy chrysanthemum, talc, castor oil, gypsum powder at a ratio of 1: 1: 20: 40 mixed chalk made pen poisonous, painted in the trunk or branch A closed drug ring (other drugs can also be used to draw the original drug ring), pests can kill lethal. This method is suitable for sleeping under the tree in the winter, trees in spring damage various pests. 2, membrane ring barrier in the trunk of the appropriate operating position scraping 5 cm wide rough skin, with a 5 cm wide plastic film around a circle, take the lid at 2 cm and fixed with a staple film ring (also The upper end of the membrane can be tightened with a lower end