Reproductive attributes and functional response of Anastatus japonicus on eggs of Antheraea pernyi, a factitious host

文献类型： 外文期刊

第一作者： Mi, Qian-Qian

作者： Mi, Qian-Qian;Zhang, Jin-Ping;Ali, Muhammad Yasir;Zhang, Feng;Mi, Qian-Qian;Zhang, Jin-Ping;Zhang, Feng;Zhong, Yong-Zhi;Mills, Nicholas J.;Li, Dun-Song;Lei, Yu-Ming;Zhang, Feng

作者机构：

关键词： inundative biological control; egg parasitoid; mass rearing; fecundity; sex ratio

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.462； 五年影响因子：4.688 ）

ISSN： 1526-498X

年卷期： 2022 年 78 卷 11 期

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收录情况： SCI

摘要： BACKGROUND Anastatus japonicus Ashmead (Hymenoptera: Eupelmidae) is a solitary egg endoparasitoid that has been studied for inundative biological control of Halyomorpha halys Stal (Hemiptera: Pentatomidae) in China. In this study, we assessed the reproductive attributes and functional response of Anastatus japonicus on a factitious host, Antheraea pernyi (Guerin-Meneville) (Lepidoptera: Anthelidae) at 25 +/- 1 degrees C, 70 +/- 5% relative humidity and 16 h:8 h light/dark photoperiod. RESULTS The mean lifetime fecundity of Anastatus japonicus females was 404.3 progeny produced over an average oviposition period of 42.3 days. The sex ratio of adult progeny was slightly male biased (51.2%), whereas more female progeny were produced before day 20 of a female's life. Single 1-day-old mated Anastatus japonicus females exhibited a type II functional response to increasing host densities (1-50 eggs), with an inverse host density-dependent pattern of percent parasitism. The upper limit to the daily attack rate was estimated as 7.6 Antheraea pernyi eggs. Furthermore, mutual interference among Anastatus japonicus females occurred when increasing densities of parasitoids (1, 2, 4, 8, 16) were exposed to 30 host eggs. CONCLUSION Laboratory functional response result revealed that individual Anastatus japonicus might be unable to respond effectively to increasing host density in the field, which could be compensated by releasing larger numbers of wasps. Strong mutual interference among foraging Anastatus japonicus females should be considered in any future inundative biological control programs for the sustainable management of Halyomorpha halys or other host insect pests. (c) 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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