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有机农业棉田中棉蚜及其捕食性天敌的种群动态

吴文岳1,2;吕昭智2,3;王登元1;张建新3;闫绍洲1   

  1. 1新疆农业大学农学院, 乌鲁木齐 830052;2中国科学院新疆生态与地理研究所, 乌鲁木齐 830011;3新疆农垦科学院,石河子 832000
  • 收稿日期:2006-01-21 修回日期:2006-06-16 出版日期:2006-10-10 发布日期:2006-10-10

Dynamics of Aphis gossypii and its predatory natural enemies in organic agricultural cotton filed

WU Wenyue1,2; LV Zhaozhi2,3;WANG Dengyuan1; ZHANG Jianxin3;YAN Shaozhou1   

  1. 1College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China;

    2Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;

    3Xinjiang Academy of Agriculture and Reclamation, Shihezi 832000, China

  • Received:2006-01-21 Revised:2006-06-16 Online:2006-10-10 Published:2006-10-10

摘要: 采用定期目测棉叶上的棉蚜数量,用扫网法同步估测天敌种群数量,对有机农业棉田和常规棉田(对照)中棉蚜及其捕食性天敌的种群动态进行了比较。结果表明,有机棉田和常规棉田中棉蚜及其主要捕食性天敌种群动态差异显著。在2005年6~8月,有机棉田中棉蚜数量是常规棉田的4.17倍(P<0.05)。瓢虫成虫和幼虫的数量分别是常规棉田的3.22倍(P<0.01)和3.70倍(P>0.05);草蛉成虫和幼虫的数量分别是常规棉田的1.33倍(P>0.05)和3.00倍(P<0.05);食蚜蝇的数量是常规棉田的2.89倍(P>0.05),蜘蛛的数量是常规棉田的3.47倍(P<0.05)。因此,建议在有机农业棉花生产中,采用一些植物源杀虫剂辅助控制棉蚜。

关键词: 寡营养细菌, 生态特征, 环境科学

Abstract: In this paper, the numbers of Aphis gossypii and its predatory insects in organic agricultural and conventional cotton fields were estimated in June-August 2005. The results showed that there was a significant difference in the dynamics of A. gossypii and its predator populations between organic agricultural and conventional cotton fields. In organic agricultural cotton field, the individuals of the aphid, adult and larval ladybird, adult and larval lacewing, hoverfly,and spider were 3.17, 2.22, 2.70, 0.33, 2.00, 1.89, and 2.47 times higher than those in conventional cotton field, respectively. It was suggested that in the production of organic agricultural cotton, spraying plant source pesticides could be helpful to suppress A. gossypii in organic agricultural cotton fields.

Key words: Oligotrophic bacteria, Ecological characteristics, Environmental science