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根据对达县近20年来水稻稻飞虱发生为害情况连续监测结果的分析研究,基本摸清了本地区稻飞虱的发生演变规律。明确了白背飞虱是本地区水稻致害成灾的主要虫种,7月上、中旬的四(2)代和7月下旬至8月上旬初的五(3)代是本区一季中稻上的主要为害世代,并对本地区稻飞虱发生为害的主要影响因素进行了分析,为本地区稻飞虱的监控提供了理论依据。
According to the continuous monitoring results of the occurrence of rice planthoppers in Daxian in the past 20 years, the occurrence and evolution of rice planthoppers in this area were basically ascertained. It is clear that the whitebacked planthopper, Siphonaptera sibirica is one of the major pest species causing rice damage in the region. Four (2) generations in the middle and early July and five (3) generations in early July and early August are the first season rice On the main harm generation, and the occurrence of planthoppers in the region the main impact factors were analyzed for the monitoring of planthoppers in the region provide a theoretical basis.