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三、苹果的综合防治历 1920年前后,利用喷药历(Spray Calendar)防治苹果病虫害的观点,在日本已经形成,并已实际应用。以前,每4～5年更新一次,现在每年都要注入新的技术内容。从前,因为农药种类少,没有选择的余地,据此所制订的防治历,称作“定食型”的防治历。现在,可供选择的农药范围广泛,据此所制订的防治历,称作“菜谱式”防治历。最近苹果病虫害防治历的一个特点是,防治面广,群体与个体结合,防治效率
Third, the comprehensive prevention and control of apple Before and after 1920, the use of spray calendar (Spray Calendar) prevention and control of apple pests point of view, has been formed in Japan, and has been the practical application. Previously, it was updated every 4 to 5 years, and new technical content is now being injected every year. In the past, because of the small number of pesticides, there is no choice, and the prevention and control calendar developed accordingly is called “fixed-food type” prevention and treatment calendar. Now, a wide range of pesticides to choose from, according to the prevention and control of the calendar developed, known as “recipe” control calendar. A recent pest and disease control apple calendar is characterized by a wide range of prevention and control, group and individual combination, prevention and control efficiency