Liu Ying Jie, Chi Bao Jie, Lin Fang Jing, Maigret Olivier, Zheng Lu Fei, Liu Yong
College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, China.
Department of Functional and Evolutionary Entomology, University of Liège, Gembloux B-5030, Belgium.
Ying Yong Sheng Tai Xue Bao. 2016 Aug;27(8):2623-2628. doi: 10.13287/j.1001-9332.201608.005.
As a most common component of aphid alarm pheromone, E-β-farnesene (EβF) could not only dispel aphids, but also modify some behavioral responses of their natural enemies. In order to investigate the ecological function of EβF, its influence on the population dynamics of Myzus persicae (Sulzer), Aphis gossypii (Glover), Macrosiphum euphorbiaein (Thomas) and their natural enemies was studied in potato fields. The results showed that there were significantly lower aphid abundance (2012, 2013), higher ladybird beetle abundance (2012, 2013), and higher mummified aphid abundance (2012) on potato plants in EβF treated plots (100 μL per week). The numbers of aphids at the distances of 1 m and 5 m from EβF releaser were significantly lower compared to 10 m in 2012, and the aphid number was significantly lower at the distance of 1 m compared to 5 m and 10 m in 2013. Moreover, significantly higher parasitoid and hoverfly numbers in 2012 and higher numbers of ladybird beetles in 2013 were observed in yellow traps in EβF treated plots. The results suggested that EβF could suppress aphid population growth within a certain distance in potato fields.
作为蚜虫报警信息素最常见的成分，E-β-法尼烯（EβF）不仅能驱散蚜虫，还能改变其天敌的一些行为反应。为了研究EβF的生态功能，在马铃薯田研究了其对桃蚜（Sulzer）、棉蚜（Glover）、茄无网蚜（Thomas）及其天敌种群动态的影响。结果表明，在每周施用100μL EβF处理的地块中，马铃薯植株上的蚜虫数量显著减少（2012年、2013年），瓢虫数量增加（2012年、2013年），被寄生的蚜虫数量增加（2012年）。2012年，距离EβF释放器1米和5米处的蚜虫数量与10米处相比显著减少，2013年，1米处的蚜虫数量与5米和10米处相比显著减少。此外，在EβF处理地块的黄色诱捕器中，2012年观察到寄生蜂和食蚜蝇数量显著增加，2013年瓢虫数量增加。结果表明，EβF能在一定距离内抑制马铃薯田蚜虫种群的增长。
