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(七) 普特丹普特丹又叫三环锡,是美国陶氏化学公司的产品。有机锡杀螨剂具有触杀、胃毒和拒食作用,可用于棉花,苹果、樱桃、梨、桃、杏、柑桔、茶叶、蔬菜及观尝植物上防治螨类。使用方法及用药量。在苹果、棉花、樱桃、梨、桃、杏、柑桔、茶叶、蔬菜及观尝植物上出现螨类时,将配好的药液进行均匀的喷雾。苹果等果树上海亩用药量一般稀释倍数为2,000—3,000倍液;在柑桔树上用药稀释倍数为3,000—5,000倍液,蔬菜上用
(Vii) Paterson Paterson also known as tricyclic tin, the United States Dow Chemical Company’s products. Organotin acaricides with contact kill, stomach poisoning and antifeedant effect, can be used on cotton, apples, cherries, pears, peaches, apricots, oranges, tea, vegetables and taste plants on the prevention and control of mites. Use and dosage. In the case of mites on apples, cotton, cherries, pears, peaches, apricots, oranges, tea, vegetables and ornamental plants, spray well with a good chemical. Apple and other fruit trees in Shanghai mu dose generally dilution of 2,000-3,000 times the solution; citrus trees in the dilution of 3,000-5,000 times, vegetables