| 鱼藤酮及其混剂对蔬菜害虫的毒效研究 |
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| 引用本文： | 莫美华,黄彰欣.鱼藤酮及其混剂对蔬菜害虫的毒效研究[J].华南农业大学学报,1994,15(4):58-62. |
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| 作者姓名： | 莫美华 黄彰欣 |
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| 作者单位： | 广州华南农业大学植物保护系 |
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| 摘 要： | 用杀虫剂联合作用方法优选山鱼藤酮混氰戊菊酯（４：１）具明显增效作用，对５龄菜粉蝶幼虫共毒系数为３４２．２（触杀），４４９．８（胃毒），对菜蚜ＬＣ５０１．２３ｍｇ／Ｌ。该混剂对菜粉蝶幼虫有明显拒食和抑制生长发育作用，ＡＦＣ５０为０．７ｍｇ／Ｌ；用１８ｍｇ／Ｌ混剂处理幼虫，发育抑制率为８４．４％，田间试验表明，鱼藤混剂对多种害虫有高效，３０ｍｇ／Ｌ的混剂的对菜粉蝶幼虫的防效相当于５０ｍｇ／Ｌ的氰戊菊酯
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| 关 键 词： | 鱼藤酮 氰戊菊酯 共毒系数 菜粉蝶 蚜虫 |
STUDIES ON THE EFFECTS OF ROTENONE AND ITSADMIXTURE AGAINST INSECT PESTS ON VEGETABLES |
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| Mo Meihu,Huang Zhangxin.STUDIES ON THE EFFECTS OF ROTENONE AND ITSADMIXTURE AGAINST INSECT PESTS ON VEGETABLES[J].Journal of South China Agricultural University,1994,15(4):58-62. |
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| Authors: | Mo Meihu Huang Zhangxin |
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| Abstract: | Results of experiment showed that an admixture,mainly consisting of rotenoneand fenvalerate(4:1)gave strong contact,stomach poison and antifeedant effectand the inhibitory effect on the growth and development of Pieris rapae L.,and the co-toxicity coeffcients for contact and stomach poison were 342.2 and449.8 respectively.The admixture was used to spray in 30mg/L in pot and fieldtrials,and it gave the same control efficiency to Pieris rapae as 50mg/L offenvalerate giving and was more effective than that of 75 mg/L of rotenonegiving alon. |
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