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湘乡市每年晚稻的虫害损失主要是由稻飞虱危害造成,并以褐飞虱危害为主。 防治稻飞虱,除了栽培抗性品种和合理施肥、排灌以外,还应适时使用合理对口农药。 据湘乡市植保站多年调查记载数据统计,晚稻飞虱短翅成虫第一次高峰期出现在8月26日至9月1日,第一次若虫高峰期出现在8月25～29日。因此,在8月底进行防治是适合的,可兼杀若虫和短翅成虫,此
The pest damage of late rice in Xiangxiang City is mainly caused by the harm of planthopper, and the main hazard is the brown planthopper. Planthopper control, in addition to cultivating resistant varieties and rational fertilization, drainage and irrigation, should also be timely and reasonable use of pesticides counterparts. According to many years of investigation and data collection of plant protection station in Xiangxiang City, the first peak of Lateral Planthopper occurs in August 26 to September 1, and the first peak of nymph in August 25 to August 29 . Therefore, it is suitable to carry out the control at the end of August, which can kill nymphs and short-winged adults