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防治树木的蛀干害虫,如光肩星天牛、白杨透翅蛾、木蠹蛾、杨干象、蝙蝠蛾、青杨天牛等,采用磷化铝防治效果好,方法简单,成本低,一般亩成本为0.5元左右,比用氧化乐果点涂或其它毒泥堵孔要节省0.3～0.6元.防治害虫时,只要找到害虫侵入口,把磷化铝药片塞进去,然后堵上泥巴,压紧压实即可.因为磷化铝是一种熏蒸剂,极易吸收水分而自行分解,产 如白杨透翅蛾、杨干象、光肩星天牛等害虫的幼虫4月上中旬开始在虫道内活动,因此防治时间一般应在4月中旬至5月初,而蝙蝠蛾、青杨天牛等,则应该在6月上旬进行防治.有些蛀干害虫二三年才完成一个世代,或者世代不整齐,所以春天防完后,秋季还可以进行第二次防治.磷化铝片沈阳农药厂已有生产,每片重3.3克.使用时应视不同虫种和不同龄期而施以不同剂量.如杨干象幼虫在3～4龄时,每个虫孔只要施用1/6～1/8片磷化铝,杀虫效果可达100%.由于磷化铝蒸发性极强,因此使用剩下的药剂要妥善保存,封闭好容器口,以防受潮释放毒气.在使用时要禁止吸烟和吃东西,施药后要洗净手和脸.
Prevention and treatment of tree-boring pests, such as the light Shijiazhuang Tian cattle, poplar moth, moth, moth, poplar, bat moth, green poplar, the use of aluminum phosphide prevention and control effect is good, simple, low cost, the average cost of mu 0.5 yuan, Than the omethoate or other poisonous mud plug hole to save 0.3 to 0.6 yuan. Pest control, as long as the pest invade the mouth to find, the aluminum phosphate tablets into it, and then plug the mud, squeeze compaction Because aluminum phosphide is a kind of fumigant, it can easily absorb moisture and decompose itself. Larvae such as poplar, poplar and sunder cephalopods begin to move in the larvae in mid April and so the control time should generally be 4 From mid-May to early May, bat moths, Populus euphratica, etc. should be controlled in the first half of June. Some stem-bore pests only completed one or two generations in the next two or three generations, The second prevention and treatment. Shenyang Pharmaceutical Factory aluminum phosphide tablets have been produced, each weighing 3.3 grams. Use should be different depending on the species and different ages and different doses of such as Yang dry larvae in the 3 to 4 age, each As long as the application of a worm hole 1/6 ~ 1/8 pieces of phosphating , Insecticidal effect of up to 100% due to strong evaporation of aluminum phosphide, so use the remaining agents should be properly preserved, closed container mouth to prevent the release of damp gas. In use to prohibit smoking and eating, Shi Shi Wash your hands and face after treatment.