杀虫双是六六六的替代品种之一,对稻蓟马的药效优于乐果,持效期10天以上;对稻螟虫、稻纵卷叶螟、稻苞虫的药效与杀虫脒相当,并有施药适期范围大、对高龄幼虫杀伤力强的优点。为了用好杀虫双,我们组成协作组研究其使用技术。本文是25％杀虫双水剂不同喷雾方式防治稻纵卷叶螟药效试验的结果。一、不同用药量试验选湖北省江北农场农科所制种稻田,小区面积0.1亩,保护行宽2米。常量喷雾,用背负式手压喷雾器,喷药液量为每亩100斤。5点取样,每点双行顺序取稻株10丛,共50丛,查施药前后初卷小苞的空苞率,计算药效(表 Insecticidal double is one of six six six alternative varieties, the efficacy of thrips tabacum than dimethoate, persistence period of more than 10 days; rice borers, rice leaf roller, rice shell insects efficacy and kill Amounts of acetamiprid, and a large range of application of pesticides, the killing of advanced larvae strong advantage. In order to make good use of insecticide and insecticide, we formed a collaborative group to study its use of technology. This article is 25% insecticide Shuangshui different spraying methods to control the rice leaf roller results of the efficacy test. First, the test of different doses of Hubei Province Jiangbei Farm Agricultural Science Institute of paddy production, the plot area of ​​0.1 acres, protection line width of 2 meters. Constant spray, with a hand-held pressure sprayer, spraying liquid volume of 100 pounds per mu. 5 o’clock sampling, each point double row order to take rice 10 plexus, a total of 50 plexus, check the application before and after the first volume of the involucre shell empty rate, calculate the efficacy