State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
Faculty of Sciences and Mathematics, Department of Biology and Ecology, University of Niš, Višegradska 33, 18000, Niš, Serbia.
Sci Rep. 2017 Oct 25;7(1):13989. doi: 10.1038/s41598-017-14441-6.
Parasitoids are important natural enemies of aphids in wheat fields of northern China, and interest in them has increased in recent years. However, little is known regarding parasitoids of wheat aphids, which has hindered the study and understanding of aphid-parasitoid interactions. In the present study, three primary parasitoids and 15 hyperparasitoids were collected in wheat fields during a 2-year survey in northern China (2014, 2015) and a 2-year investigation at Langfang, Hebei Province (2015, 2016). Among them, Aphidius uzbekistanicus Luzhetski was found most frequently among the primary parasitoids, while Pachyneuron aphidis (Bouché) dominated the hyperparasitoid community. Investigation of the dynamics of wheat aphids and parasitoids revealed that the primary parasitoids appeared early in the growing period and that the hyperparasitoids appeared later. Analysis of the seasonal dynamics revealed that growth of the parasitoid population followed that of the aphid population and that the parasitism rates were highest in the late growing period.
在中国北方麦田中，寄生蜂是蚜虫的重要天敌，近年来它们受到了越来越多的关注。然而，人们对小麦蚜虫的寄生蜂知之甚少，这阻碍了对蚜虫-寄生蜂相互作用的研究和理解。本研究在 2014 年和 2015 年的两年调查以及 2015 年和 2016 年在河北省廊坊市的两年调查中，在中国北方麦田中收集了 3 种主要寄生蜂和 15 种重寄生蜂。其中，在主要寄生蜂中发现的最频繁的是uzbekistanicus Luzhetski，而 Pachyneuron aphidis (Bouché) 则是重寄生蜂群落的优势种。对小麦蚜虫和寄生蜂动态的研究表明，主要寄生蜂在生长前期出现，而重寄生蜂出现较晚。季节性动态分析表明，寄生蜂种群的增长与蚜虫种群的增长一致，在生长后期寄生率最高。
