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近几年来,国内中华稻蝗 Oxya chinensis (Thunb.)发生较重,有关防治指标的报道,较不一致。我们在水稻不同发育阶段及与之相对应的稻蝗不同龄期,即秧田期(幼蝻期)、分蘖拔节期(老龄期)和抽穗成熟期(成虫期)进行分段研究,得出了不同发育阶段的不同防治指标。这样也许更符合实际情况,在生产上也便于应用。现将结果报告如下。一、研究方法1.秧田期:6月3日我们在石集乡韦庄村刘台组选择长势一致、施肥水平中等的秧田为
In recent years, the domestic Chinese Oxya chinensis (Thunb.) Occurred heavier, reports on prevention and treatment indicators, more inconsistent. We studied the different developmental stages of rice and corresponding rice locusts at different ages, ie seedling stage (young stage), tillering and jointing stage (old stage) and heading stage (adult stage) Different control indexes in different developmental stages. This may be more in line with the actual situation, but also easy to use in production. The results reported below. First, the research methods 1 seedling period: June 3, we choose to grow in Liuzai group of Weizhuang Village, Shiji Township, and the seedling field of middle fertilization level is