论文部分内容阅读
我县地处丘陵地带,近年来由于气候、品种、改制等因素变化,引起水稻暴发性害虫种类多,发生次数频繁重叠,交错为害,施药次数亦逐趋增加,使用农药、农械均较紧张。为了提高农药防效和进一步延长其残效期,减少用药次数,节省工本,我站参考有关资料,于一九七九年晚季选用内吸性较强的农药,在县农科所进行球药深施防治水稻害虫试验,收到了较好防治效果。
My county is located in hilly areas, in recent years due to climate, variety, restructuring and other factors change, causing rice more types of outbreaks of pests, the frequency of occurrence of frequent overlap, staggered damage, the number of pesticides also gradually increased by the use of pesticides, farm machinery were more tension. In order to improve pesticide control efficacy and further extend its residual period, reduce the frequency of medication and save cost, I refer to the relevant information for selection of strong systemic pesticides in the late 1979, Deep prevention and control of rice pests test, received a good control effect.