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Title: Species composition and richness of aphid parasitoid wasps in cotton fields in northern China
Author: Yang, Fan
Wu, Yue-Kun
Xu, Lei
Wang, Qian
Yao, Zhi-Wen
Žikić, Vladimir
Tomanović, Željko
Ferrer Suay, Mar
Selfa i Arlandis, Jesús, 1962-
Pujade, Juli, 1960-
Lu, Yan-Hui
Guo, Yu-Yuan
Keywords: Hemípters
Control biològic de plagues
Biological pest control
Issue Date: 29-Aug-2017
Publisher: Nature Publishing Group
Abstract: The cotton aphid, Aphis gossypii (Hemiptera: Aphididae), is a serious pest of cotton across the globe, particularly in the cotton agroecosystems of northern China. Parasitic wasps are deemed to be important natural enemies of A. gossypii, but limited information exists about their species composition, richness and seasonal dynamics in northern China. In this study, we combine sampling over a broad geographical area with intensive field trials over the course of three cropping seasons to describe parasitoid-hyperparasitoid communities in cotton crops. We delineate a speciose complex of primary parasitoids and hyperparasitoids associated with A. gossypii. Over 90% of the primary parasitoids were Binodoxys communis. Syrphophagus sp. and Pachyneuron aphidis made up most of the hyperparasitoids. Parasitism rates changed in a similar way following the fluctuation of the aphid population. Early in the growing period, there were more hyperparasitoids, while later, the primary parasitoids provided control of A. gossypii. The first systematic report of this cotton aphid parasitoid complex and their population dynamics in association with their hosts presented a comprehensive assessment of cotton parasitoid species and provided important information for the establishment and promotion of their biological control of cotton aphids.
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It is part of: Scientific Reports, 2017, vol. 7, num. 1, p. 9799
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ISSN: 2045-2322
Appears in Collections:Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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