| 几种杀虫剂混用对粘虫增效作用的研究 |
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| 引用本文： | 欧晓明,余淑英,林雪梅,刘光辉.几种杀虫剂混用对粘虫增效作用的研究[J].华中农业大学学报,1999,18(1):28-32. |
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| 作者姓名： | 欧晓明 余淑英 林雪梅 刘光辉 |
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| 作者单位： | 湖南化工研究院农药研究所,长沙,410007 |
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| 基金项目： | 湖南省农用化学品重点实验室资助 |
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| 摘 要： | 在室内采用点滴法测定了几种杀虫剂和增效剂以不同比例混配对粘虫３龄幼虫的毒力及其增效作用，结果表明，３种供试药剂单用时对粘虫的毒力从大到小的顺序为辛硫磷〉丁硫克百威〉双甲脒，其ＬＤ５０值分别为每虫０．０１９６，０．０２６４和１．２２２μｇ；
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| 关 键 词： | 粘虫 丁硫克百威 辛硫磷 双甲脒 增效剂PB 二元混配 增效作用 |
| 修稿时间： | 19980708 |
A STUDY ON SYNERGISM OF BINARY MIXTURES OF SOME INSECTICIDE SON ORIENTAL ARMYWORM Mythimna separata WALKER |
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| Ou Xiaoming,Yu Shuying,Lin Xuemei,Liu Guanghui.A STUDY ON SYNERGISM OF BINARY MIXTURES OF SOME INSECTICIDE SON ORIENTAL ARMYWORM Mythimna separata WALKER[J].Journal of Huazhong Agricultural University,1999,18(1):28-32. |
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| Authors: | Ou Xiaoming Yu Shuying Lin Xuemei Liu Guanghui |
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| Abstract: | Bioassays were applied to estimate the toxicities of some insecticides and their
synergist against the third instar larvae of oriental armyworm, Mythimna separata Walker, in
the laboratory. The results showed that phoxim was the most toxic towards the insect, followed
by the other two insecticides carbosulfan and amitra. Their LD50 values were 0.0196, 0.0264
and 1.222 g per insect, respectively. High synergism was observed with the following mixtures:
carbosulfan plus phoxim (11and 14), carbosulfan plus amitra(11), carbosulfan plus PB(11 and
14), phoxim plus amitra(11), phoxim plus PB(11), and their cotoxicity coeffients were 143.70,
158.38, 148.00, 137.57, 231.52, 143.1 and 151.81 respectively. Besides, synergistic
mechanisms of binary mixtures of insecticides and their roles in the integrated resistance
management were discussed in this paper. |
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| Keywords: | Mythimna separata Walker carbosulfan phoxim amitra synergist (PB) binary mixture synergistic action |
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