几种弱选择性寄主蔬菜对烟粉虱的驱避作用
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江苏省农业科技自主创新资金[cx(15)1041、cx(12)1004];江苏省农业三新工程项目[SXGC(2016)029、SXGC(2016)057]


Repellent effect of several low-preference host vegetables against the tobacco whitefly Bemisia tabaci
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    [目的]烟粉虱是茄果类蔬菜上的重要害虫,已对常用的化学农药产生了较强的抗药性。目前,利用非嗜好植物对烟粉虱的驱避作用和嗜好植物的诱集作用控制烟粉虱则受到越来越多的关注。[方法]选择芹菜、韭菜、茼蒿、香菜、葱、蒜等6种烟粉虱弱选择性寄主蔬菜,测定烟粉虱对供试蔬菜的嗅觉和视觉反应。在此基础上,筛选出非嗜性相对更强的3种蔬菜进行田间烟粉虱驱虫性测定。[结果]在室内寄主选择性测定中,烟粉虱对供试6种蔬菜的选择性均较小,其中对芹菜的选择率最低,韭菜次之,其余4种蔬菜的选择率为茼蒿 > 香菜 > 葱>蒜;采用嗅觉选择性测定的方法测定烟粉虱对供试蔬菜的相对选择性,发现烟粉虱对芹菜的选择率最低(13.0%),韭菜次之(25.5%),其余各蔬菜的选择率大小为茼蒿(47.8%) > 香菜(40.2%) > 葱(38.5%) > 蒜(37.0%);烟粉虱对6种供试蔬菜颜色的选择性也存在明显的差异,其中,烟粉虱对芹菜和韭菜的选择率相对较低。在室内筛选的基础上,选择芹菜、韭菜、葱等3种蔬菜在辣椒田里进行间作驱虫实验,发现芹菜对田间辣椒上烟粉虱的驱避效果最好,驱避率达90.6%,韭菜次之(86.5%),葱的驱避效果一般。[结论]芹菜和韭菜对烟粉虱的驱避效果较好,该结论为烟粉虱的绿色防控提供了理论依据和技术支持。

    Abstract:

    [Aim] The tobacco whitefly, Bemisia tabaci is an important insect pest on eggplant and other vegetables and has developed strong resistance to commonly used chemical pesticides. This directed more attention to the repellent effect of non-preferred host plants as a protective measure against B. tabaci.[Method] The olfactory and visual responses of B. tabaci were determined on six vegetables:Apium graveolens, Allium tuberosum, Chrysanthemum coronarium, Coriandrum sativum, Allium fistulosum and Allium sativum. The relative selectivity of B. tabaci to the tested vegetables was determined by the method of olfactory selectivity.[Result] B. tabaci showed low preference for these plants in indoor selective assays. A. graveolens was the least preferred, followed by A. tuberosum, followed by the other vegetables in the sequence:C. coronarium > C. sativum > A. fistulosum > A. sativum; olfactory selectivity to A. graveolens was the lowest, only 13.0%, followed by A. tuberosum (25.5%), A. sativum (37.0%), A. fistulosum (39.6%), C. sativum (40.2%) and C. coronarium (44.8%); the visual selectivity of B. tabaci was also different, with A. graveolens and A. tuberosum being the lowest. On the basis of the laboratory experimetns, A. graveolens, A. tuberosum and A. fistulosum were selected for field tests. A. graveolens had the best repellent effect against B. tabaci on bell pepper plots(90.6% repellency), followed by A. tuberosum (86.5%).[Conclusion] A. graveolens and A. tuberosum are candicate repellent plants against B. tabaci.

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衡森,周福才,陈学好,苏宏华,赵斌,邵益栋,张海波,夏秋霞.几种弱选择性寄主蔬菜对烟粉虱的驱避作用[J].生物安全学报中文版,2017,26(2):168-172

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  • 收稿日期:2016-12-16
  • 最后修改日期:2017-01-17
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  • 在线发布日期: 2017-06-07
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