摘要
通过对转基因抗虫杨林中主要害虫和天敌的种群动态研究表明,转基因杨对林中主要靶标害虫舞毒蛾Ly-mantria disparL.、杨白潜叶蛾Leucoptera susinella有很好的控制作用,在转基因杨林中非靶标害虫杨白毛蚜Chai-tophorus populialbaeBoyer de Fonscolombe未出现大发生的趋势。在转基因杨高抗和中抗林中,主要捕食性天敌三突花蛛Misumenops tricuspidatus、异色瓢虫Harmonia axyridisPallas的数量与对照相比有增加或减少,而寄生性天敌粘虫白星姬蜂Vulgichneumon leucaniaeUchida的数量明显减少,说明转基因741杨外源基因的转入以及林中靶标和非靶标害虫数量的变化对天敌种群数量的变化有一定影响。
Population dynamic of main pest and natural enemy was analyzed in transgenic insect - resistance hybrid poplar 741. The results indicated that Transgenic Poplar 741 had significant control effects on dominant target pest （ Lymantria dispar L. and Leucoptera susinella）, and there was not generant trend of large numbers of non - target pests （ Chaitophorus populialbae Boyer de Fonscolombe）. The number of main predacitica natural enemy （Misumenops tricuspidatus and Harmonia axyridis Pallas） had increase or decrease in high -resistant and medi- um - resistance compared with that of the control, but the number of parasitoids natural enemy （ Vulgichneumon leucaniae Uchida） had obvious decrease, that exogenous gene trans of the transgenic hybrid poplar 741 and the number variety of target pest and non - target pests had definite influence on the population number of natural enemy.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2009年第2期195-199,共5页
Journal of Shandong Agricultural University：Natural Science Edition
基金
国家自然科学基金资助项目(30070626)
关键词
转基因741杨
害虫
天敌
种群动态
Transgenic insect - resistance hybrid poplar 741
pest
natural enemy
population dynamic
