摘要
[Objective] This study aimed to survey the effect of insecticide use intensity on the resistance of rice stem borer in South China. [Method] The data includes 19 counties from Guangdong Province and Guangxi Province from 1991 to 2010. A fixed effect model was established to evaluate the effect of insecticide use intensity on the resistance of rice stem borer. [Result] The regression results suggest that one-period lagged total number of insecticide sprays has significant effect on the infestation level of rice stem borer. [Conclusion] Although rice stem borer is a migratory rice pest, insecticide use intensity has significant effect on the resistance level of rice stem borer in South China.
[目标]研究中国华南稻田用药强度对水稻螟虫的抗药性的影响。[方法]采用来自广东和广西的19个水稻种植县从1991年到2010年的面板数据,建立个体固定效应模型。[结果]滞后一期针对水稻螟虫的总用药次数对当期水稻螟虫的发生级别有显著的正的影响。[结论]虽然水稻螟虫是一种迁飞性害虫,但是不同地区的农民的用药行为都受到了水稻螟虫发生级别的影响,因此。
