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台湾稻螟Chilo auricilius Dudgeon在我县水稻每年都有不同程度发生,有的年份局部地区受害成灾,造成稻谷减产。因此,近几年来我们对台湾稻螟进行了研究及防治试验,其结果如下。 一、年生活史 台湾稻螟在我县一年发生五代,世代重叠,以老熟幼虫在稻秆或稻茬内越冬,越冬代螟蛾在3月上旬始见,3月下旬至4月中旬盛发,产卵于早造秧田和早插田,发生数量很少。第一
Taiwan rice borer Chilo auricilius Dudgeon in our county rice every year to varying degrees, some areas victims of disasters in some areas, resulting in reduced production of rice. Therefore, in recent years, we conducted research and control trials on rice borer in Taiwan. The results are as follows. First, the annual life history of Taiwan rice borer occurred in our county five generations a year, generations overlapping, with mature larvae overwinter in rice straw or rice stubble, overwintering on behalf of the moth in the early March saw, late March to mid-April Shengfa, spawning early seedling field and early field, the occurrence of a small number. the first