论文部分内容阅读
小麦吸浆虫和麦蚜是小麦生产上的主要害虫,其中小麦吸浆虫发生情况在北京市大兴区成逐年上升的趋势。本试验选取常规种植的小麦田,研究不同时期防治小麦害虫,防治效果的差异,对产量的影响,选出最佳防治时期。结果表明小麦蚜虫防治在抽穗期或扬花灌浆期防治效果差异不明显,小麦吸浆虫不同防治时期,效果差异较大,在小麦抽穗期防治效果在98.00%以上,但是在开花灌浆期防治效果仅为68.97%。在小麦抽穗期防治小麦害虫产量增加107.08%,小麦抽穗期加上扬花灌浆期防治小麦害虫,产量增加153.37%。
Wheat midge and wheat aphid are the major pests in wheat production. The incidence of midge of milk powder in Daxing District of Beijing is increasing year by year. In this experiment, we selected the conventionally planted wheat field to study the effects of controlling pests and diseases at different periods, the effect of control and the effect on yield and the optimal control period. The results showed that there was no significant difference in the control effect of wheat aphid at heading stage or flowering stage. The control effect of wheat midge was different at different stages of control, and the control effect was 98.00% at heading stage, but the control effect was only 68.97 at flowering stage %. The yield of wheat pest increased by 107.08% during wheat heading stage. Wheat heading stage was combined with control of wheat pest at the stage of flowering and grain filling, and the yield increased by 153.37%.