应用生态学报2011，Vol.22Issue(12)：3265-3271,7.
植物篱对小麦蚜虫及其天敌种群的影响
Effects of plant hedgerow on population dynamics of wheat aphid and its natural enemies
摘要
Abstract
This paper studied the effects of planting different kinds of plant hedgerow {Amorpha fru-ticosa, Vetiveria zizanioides, Eulaliopsis binata, and Medicago sativa) on the population dynamics of wheat aphid and its natural enemies in the hillside wheat fields in Ziyang City of Sichuan Province, Southwest China. On the 20° hillside, A. Fiuticosa hedgerow inhibited the occurrence of wheat aphid in the wheat field significantly, and the parasitoid densities were equal to or significantly lower than those in the wheat field with V. Zizanioides hedgerow. On the 12° hillside, M. Sativa and E. Binata hedgerows delayed the peak time of wheat aphid occurrence, and E. Binata hedgerow suppressed the wheat aphid population density significantly. In the wheat field with M. Sativa hedgerow, the parasitoid densities were significantly higher than those with no hedgerow. An equal or significantly higher ladybird density was observed in the field with M. Sativa hedgerow. The olfactory responses showed that E. Binata volatiles had repellent effect on both Sitobion avenae and Rhopalosiphum padi, but attracted a spider species of oxyopidae. M. Sativa volatiles attracted S. Avenae, whereas neither M. Sativa nor E. Binata volatiles caused obvious behavior response of ladybird adults. Therefore, planting A. Fruticosa and E. Binata as the hedgerows in hillside wheat fields could not only prevent the soil erosion from seasonal rainfall, but also benefit the control of pest insects.关键词
植物篱/植物挥发物/小麦/麦长管蚜/禾谷缢管蚜/天敌/生物多样性Key words
plant hedgerow/ plant volatiles/ Triticum aestivum/ Sitobion avenae/ Rhopalosiphum padi/ natural enemy/ biodiversity分类
农业科技引用本文复制引用
石国庆,林超文,刘章勇,李传仁,陈一兵,马涛,王启锋,刘志龙,蔡青年..植物篱对小麦蚜虫及其天敌种群的影响[J].应用生态学报,2011,22(12):3265-3271,7.基金项目
国家重点基础研究发展计划项目(2006CB100206)资助. （2006CB100206）
