Seasonal abundance and diversity of egg parasitoids of Halyomorpha halys in Kiwifruit orchards in China
文献类型: 外文期刊
作者: Avila Gonzalo A.;Chen Juhong;Li Wenjing;Alavi Maryam;Mi Qianqian;Sandanayaka Manoharie;Zhang Feng;Zhang Jinping
作者机构:
关键词: Biological control; Brown marmorated stink bug; Trissolcus cultratus; Trissolcus japonicus
期刊名称: Insects
ISSN: 2075-4450
年卷期: 2021 年 12 卷 5 期
页码:
收录情况: JCR(2021版)
摘要: To develop effective and targeted biocontrol tactics for the brown marmorated stink bug, Halyomorpha halys, in crop habitats, a good understanding is essential of the abundance and diversity of its parasitoids in different crop habitats in its native range. To obtain information on the egg parasitoid communities of H. halys in kiwifruit, surveys using sentinel egg masses were conducted in 2018 and 2019. These assessed the species composition of egg parasitoids of H. halys in green-fleshed ‘Hayward’ kiwifruit orchards, and quantified their season-long abundances in orchards under two different management systems. Parasitism was observed from June to August 2018 (mean parasitism: 48%) and from May to August 2019 (mean parasitism: 29%) across the experimental orchards. In total, five different parasitoid species were found across the two surveys seasons in the kiwifruit orchards, Trissolcus japonicus, T. cultratus, T. plautiae, Anastatus japonicus, and Acroclisoides sp., where T. japonicus and T. cultratus were the predominant species. Monthly T. japonicus abundance data had a unimodal distribution in 2018, peaking in July. There were two peaks (May–June and August) in the 2019 season. Overall, T. japonicus was significantly more abundant in the organic orchard than the conventionally managed orchard only in 2018, and its monthly abundance differed significantly in the two orchards in the two survey seasons. Results and their implications for future classical biological control for H. halys in kiwifruit are discussed. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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