熏蒸毒签是新兴的防治林果蛀干害虫的药具。它具有防治期长 (一年内春、夏、秋幼虫活动期均可进行 ) ,适用性广 (适宜各种果树、林木的褐天牛、星天牛、红颈天牛、桑天牛、木蠹蛾类等多种蛀干害虫的防治 ) ,杀虫效率高 ,不污染环境 ,可保护天敌等优点 ,值得推广使用。一、熏蒸 Fumigation and poisoning sign is an emerging tool for preventing and curing fruit pests. It has a long period of control (within one year of spring, summer and autumn larvae can be carried out during the activity period), wide applicability (suitable for a variety of fruit trees, trees, brown bull, aster, red necked pit, mulberry, wood Etc.), insecticidal efficiency, non-polluting environment, natural enemies and other advantages can be protected, it is worth promoting the use of. First, fumigation