间作与MeSA释放对麦长管蚜及其优势天敌的生态效应

应用生态学报 ›› 2012, Vol. 23 ›› Issue (10): 2843-2848.

间作与MeSA释放对麦长管蚜及其优势天敌的生态效应

董洁¹,刘英杰¹,李佩玲¹,林芳静¹,陈巨莲²,刘勇^1**

(¹山东农业大学植物保护学院，山东泰安 271018； ²中国农业科学院植物保护研究所，北京 100193)

出版日期:2012-10-18 发布日期:2012-10-18

Ecological effects of wheat-oilseed rape intercropping combined with methyl salicylate release on Sitobion avenae and its main natural enemies.

DONG Jie¹, LIU Ying-jie¹, LI Pei-ling¹, LIN Fang-jing¹, CHEN Ju-lian², LIU Yong¹

(¹College of Plant Protection, Shandong Agricultural University, Tai’an 271018, Shandong, China; ²Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China)

Online:2012-10-18 Published:2012-10-18

摘要/Abstract

摘要： 为探索小麦-油菜(麦-油)间作田释放水杨酸甲酯(MeSA)对麦长管蚜及其优势天敌时序动态的影响和对麦长管蚜的生态控制效应，于2008年10月至2010年6月在山东农业大学泰安实验站进行田间试验.结果表明：麦-油间作与MeSA协同处理区的麦长管蚜无翅蚜种群数量比对照约提前12 d达到高峰，但峰值显著低于小麦单作区.百株小麦麦长管蚜无翅蚜年平均总量：小麦单作区>麦-油间作区>MeSA处理区>间作和MeSA协同处理区，而且间作和MeSA协同处理区瓢虫总量最高；蚜茧蜂发生高峰期比对照提前约10 d，对小麦灌浆期的蚜虫能起到明显的控制作用.以生物控制指数(BCI)作为定量指标、把瓢虫和蚜茧蜂作为优势控制因子进行分析发现，从小麦抽穗到灌浆期，2种因素协同处理能更有效地抑制麦长管蚜无翅蚜的种群增长.

Abstract: In order to explore the effects of wheat-oilseed rape intercropping in combining with methyl salicylate (MeSA) release on Sitobion avenae and its main natural enemies, a field experiment was conducted at the Tai’an Experimental Station of Shandong Agricultural University in East China from October 2008 to June 2010 to study the temporal dynamics of S. avenae and its main natural enemies as well as the ecological control effect on the aphid. In the plots of intercropping combined with MeSA release, the S. avenae apterae population reached a peak about 12 d in advance of the control, but the peak value was significantly lower than that of the control. The average annual number of S. avenae apterae per 100 wheat tillers decreased in the order of wheat monoculture > wheatoilseed rape intercropping > MeSA release > wheat-oilseed rape intercropping combined with MeSA release. Moreover, the total number of ladybeetles was the highest in the plots of intercropping combined with MeSA release. The population densities of aphid parasitoids reached a peak about 10 d in advance of the control, which could play a significant role in controlling S. avenae at the filling stage of wheat. Taking the biological control index (BCI) as a quantitative indicator, and with the ladybeetles and parasitoids as the dominant control factors in fields, it was observed that wheatoilseed rape intercropping combined with MeSA release could suppress the population increase of S. avenae apterae effectively from the heading to filling stages of wheat.

董洁1,刘英杰1,李佩玲1,林芳静1,陈巨莲2,刘勇1**. 间作与MeSA释放对麦长管蚜及其优势天敌的生态效应[J]. 应用生态学报, 2012, 23(10): 2843-2848.

DONG Jie1, LIU Ying-jie1, LI Pei-ling1, LIN Fang-jing1, CHEN Ju-lian2, LIU Yong1. Ecological effects of wheat-oilseed rape intercropping combined with methyl salicylate release on Sitobion avenae and its main natural enemies.[J]. Chinese Journal of Applied Ecology, 2012, 23(10): 2843-2848.