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Parasitism of two Spodoptera spp. by Microplitis prodeniae (Hymenoptera: Braconidae)

Parasitism of two Spodoptera spp. by Microplitis prodeniae (Hymenoptera: Braconidae)

Ou-Yang, Yi Yi, Zhao, Yi Pei, Hopkins, Richard J. ORCID: 0000-0003-4935-5825, Chen, Xu Yang, Huang, Guo-Hua and Wang, Xing (2018) Parasitism of two Spodoptera spp. by Microplitis prodeniae (Hymenoptera: Braconidae). Journal of Economic Entomology, 111 (3). pp. 1131-1136. ISSN 0022-0493 (Print), 1938-291X (Online) (doi:https://doi.org/10.1093/jee/toy085)

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Abstract

Early instar larvae of the tobacco cutworm Spodoptera litura (Lepidoptera: Noctuidae) and the beet armyworm Spodoptera exigua (Lepidoptera: Noctuidae) are recognized hosts of the parasitic wasp Microplitis prodeniae Rao and Kurian (Hymenoptera: Braconidae), although M. prodeniae has previously been regarded as monophagous. In this study, we found the immature period and longevity of M. prodeniae developing in S. exigua was similar to that in S. litura. It was shown that the development time of M. prodeniae in S. exigua was 15.1 ± 0.3 d, not significantly different from 15.0 ± 0.2 d in S. litura. The parasitism rate of M. prodeniae attacking S. exigua was significantly lower than on S. litura (65.48 ± 2.29 and 43.83 ± 2.20%, respectively), whilst the female ratio of the wasp’s offspring was not significantly different when developing on the two species. M. prodeniae females prefer to oviposit on the second- and third-instar host larvae of S. exigua, rather than other instars. The effects of development of M. prodeniae on two important lepidopterous pests are discussed.

Item Type: Article
Uncontrolled Keywords: parasitoid, Spodoptera
Subjects: S Agriculture > S Agriculture (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department
Last Modified: 05 Jul 2018 16:37
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/20243

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