一、树下埋药法:对于一些浅根性果树如樱桃等,可在树液流动前根据不同树龄在树干周围与树冠相齐的土中分散埋入呋哺丹100—1100克,埋药后浇足水。药剂被根系吸收并输送到树枝上,刺吸式口器害虫如蚜虫等吸食果树汁液后便会中毒死亡,每年埋药二至三次,可基本控制蚜虫危害。二、毒签熏蒸法:天牛类蛀干害虫,是钻到树干内为害,不仅危害性大,而且难于彻底消灭。近年来,人们研制出一种毒签,根据磷化锌遇有机酸产生毒气磷化氢的原理制成。制作原料:草酸、磷化锌、阿拉伯胶。制法:竹签或木签一端先沾 First, under the tree buried drug law: For some shallow root of fruit trees such as cherry, flow in the tree before the liquid according to different age around the trunk and the crown of the soil in the dispersion of furunodan 100-1100 grams, after embedding Pour enough water. Medication is absorbed by the root system and transported to the branches, sucking mouthparts pests such as aphids and other fruit juice will be poisoned after death, buried two to three times a year, can basically control aphids hazards. Second, poisoning fumigation Act: beetles borers pests, is drilled into the trunk damage, not only harmful, but also difficult to eliminate completely. In recent years, people have developed a poisoned sign, according to the principle of zinc phosphide generated when the organic acid generated phosphine and phosphine. Production of raw materials: oxalic acid, zinc phosphide, gum arabic. System of law: bamboo stick or sticky sign first dip