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Sci Rep. 2017 Oct 25;7(1):13989. doi: 10.1038/s41598-017-14441-6.

Species composition and seasonal dynamics of aphid parasitoids and hyperparasitoids in wheat fields in northern China.

Author information

1
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
2
Faculty of Sciences and Mathematics, Department of Biology and Ecology, University of Niš, Višegradska 33, 18000, Niš, Serbia.
3
University of Belgrade, Faculty of Biology, Institute of Zoology, Department of Invertebrate Zoology and Entomology, Belgrade, 11000, Serbia.
4
Universitat de València, Facultat de Ciències Biològiques, Departament de Zoologia, València, 46100, Spain.
5
Universitat de Barcelona, Facultat de Biologia, Departament de Biologia Animal. Avda. Diagonal 645, 08028, Barcelona, Spain.
6
Mountain Agriculture Research Unit, Institute of Ecology, University of Innsbruck, 6020, Innsbruck, Austria.
7
INRA (French National Institute for Agricultural Research), Université Côte D'Azur, CNRS, UMR 1355-7254, Institut Sophia Agrobiotech, 400 Route des Chappes, 06903, Sophia Antipolis, France.
8
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. yhlu@ippcaas.cn.
9
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. yuyuanguo@hotmail.com.

Abstract

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.

PMID:
29070808
PMCID:
PMC5656665
DOI:
10.1038/s41598-017-14441-6
[Indexed for MEDLINE]
Free PMC Article

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