›› 1994, Vol. 37 ›› Issue (1): 25-30.

• 研究论文 • 上一篇    下一篇

镶嵌式交替防治对菜蚜抗性演化的影响

唐振华 韩启发 庄佩君   

  • 出版日期:1994-02-20 发布日期:1994-02-20

EFFECT OF MOSAIC ROTATION CONTROL ON EVOLUTION OFINSECTICIDE RESISTANCE OF APHIDS IN SHANGHAI

TANG ZHEN-HUA HAN QI-FA ZHUANG PEI-JUN   

  • Online:1994-02-20 Published:1994-02-20

摘要: 鉴于镶嵌式防治不适用于营孤雌生殖的菜蚜乇翅成蚜,于是作者对镶嵌式防治在时空上稍作微细的改变,即先以作用机理不同的杀虫剂A和B在不同区域作镶嵌式的喷洒,而后在下一次作交替防治,这相当于邻近区域间存活个体的互相迁飞。我们称此法为镶嵌式交替防治。在上海梅陇地区,自1985年以来使用这一策略防治菜缢管蚜(Lipaphis erysimi pseudobrassicae)、桃蚜(Myzus persicae)和柳二尾蚜(Cavariella salicicola)根据生物测定和单个蚜虫的醋酶活性测定,在分别与连续使用乐果直至无效,然后改用氰戊菊酯防治的菜蚜种群比较时,所得结果表明,乐果和氰戊菊酯的镶嵌式防治能延缓这些菜蚜抗性的产生。

关键词: 菜蚜, 抗药性演化, 镶嵌式交替防冶

Abstract: The mosaic control with insecticides seems not suitable for insects such as aphids which reproduce by parthenogenesis and have low mobility in apterous form. In the present study we adopted another strategy by spraying unrelated insecticides at first and then exchanging or rotating the spraying in different areas in next terms.Since 1985, this strategy has been adopted to control the aphids on vegetables in Meilong, a suburban county of Shanghai. The aphids included Lip-phis erysimi pseu dobrassicae, Myzus persicae and Cavariella salicicoia. Based on bioassay and determination of a-Na esterase activity in single aphids, we found mosaic rotation of dimethoate and fenvalerate can delay the development of insecticide resistance in the above three species of aphids, as compared with continued use of dimethoate followed by continued use of fenvalerate to the point where control was impaired by resista nce.

Key words: aphid——insecticide resistance——mosaic rotation control