近年来,介壳虫已上升为花木上的一大害虫类。据调查,受介壳虫为害最重的花木有苏铁、山茶、木本象牙红、鸭嘴花、珊蝴豆、八角金盘、瓶儿花、蜘蛛抱蛋、吊兰、夹竹桃、海桐、马蹄莲、桂花、米兰、栀子、白兰花、小叶黄杨、常春藤等几十种。轻则导致生长发育不良、枝叶残缺,重者造成整株枯死。为害花木的介壳虫有白蜡介、吹绵介、球坚介等十几种,它们的共同特点就是繁殖迅速,成介和高龄若介外被介壳,一般药剂防治很难穿透这层介壳,故防效低下。为此,我们连续数年推广应用松脂合剂防花木介壳虫,收到了良好的防治效果。现将松脂合剂的配制、使用方法及注意事项总结如下:一、配制方法用松香2kg、烧 In recent years, scale insects have risen to a large pests on the flowers and trees. According to the survey, the most heavily polluting species affected by scale insects are cycads, camellia, woody ivory, duckbill, bayberry, star anise, bottle flowers, asparagus, spider plants, oleander, Calla, sweet-scented osmanthus, Milan, gardenia, white orchids, lobular boxwood, ivy and dozens of species. Light lead to poor growth and development, branches and leaves incomplete, severe cause dead whole plant. The damage of flowers and trees scale insects are white wax medium, blowing Mian Jiu, ball Kennedy more than a dozen, their common feature is the rapid reproduction, into the seniors and intermediaries if the shell is introduced, the general agent of prevention and control is difficult to penetrate this layer of shell, It is ineffective. To this end, we continue to promote the use of pine resin mixture for several years Scaffolding, received a good control effect. Now pine resin mixture preparation, methods of use and precautions are summarized as follows: First, the preparation method Rosin 2kg, burn