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近几年,由于我区干旱年份越来越多,造成螨类的发生日趋严重,而目前应用的杀螨剂多数为单一作用类型,即杀卵的不杀成、幼螨,杀成螨的又多不具杀卵作用,造成防治次数多、费用高的结果。为了解决此问题,研制推广具有复合杀螨作用的药剂是急需的。张家口长城化工厂研制的35%三氯·四螨悬浮乳剂具有杀卵杀成螨的作用。通过田间药剂试验,以确定适宜的使用浓度,明确效果,以便推广应用。一、试验条件选树龄为5年的苹果
In recent years, due to more and more drought years in our region, causing the occurrence of mites more serious, and the current application of acaricides most of the single role of the type, that is not killed eggs, larvae, kill mites And no more eggs kill effect, resulting in prevention and treatment of the number of high cost results. In order to solve this problem, it is urgently needed to develop a medicament with compound acaricidal action. 35% trichloro-tetra-mite suspension emulsion developed by Zhangjiakou Great Wall Chemical Factory has the effect of killing eggs and killing mites. Through the field of pharmaceutical tests to determine the appropriate use of concentration, a clear effect, in order to promote the application. First, the test conditions selected tree age of 5 years of apples