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本县地处苏北沿海,水稻面积23万亩左右,以单季中籼杂交稻为主,是白背稻虱和褐稻虱发生并重的地区。为了探索防治稻飞虱的特效药-扑虱灵在本地的最佳施药适期,本站于1990-1991年进行了这方面的探索,其结果1991年大面积验证,效果十分显著。 白背稻虱 “治二控三”效果。1990年7月9日二代
The county is located in northern Jiangsu coast, the rice area of 230000 acres, with single season indica hybrid rice-based, white backlitosis and brown planthopper occurred in both areas. In order to explore the special treatment of planthoppers against planthopper - the best local application of propafenan in this area in 1990-1991 carried out in this regard, the results of 1991 large area verification, the effect is very significant. White back louse “control two control three” effect. July 9, 1990 second generation