+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Developmental interactions between Spodoptera exigua (Noctuidae: Lepidoptera) and its uniparental endoparasitoid, Meteorus pulchricornis (Braconidae: Hymenoptera)

Developmental interactions between Spodoptera exigua (Noctuidae: Lepidoptera) and its uniparental endoparasitoid, Meteorus pulchricornis (Braconidae: Hymenoptera)

Biological Control 38(2): 264-269

A single choice test was performed to examine developmental strategies in the uniparental endoparasitoid Meteorus pulchricornis and its host, the beet armyworm, Spodoptera exigua. The results support the hypothesis that a compromised developmental strategy is pursued by solitary koinobiont endoparasitoids in the Braconidae and Ichneumonidae, where a trade-off between offspring body size and development time was exhibited. All five larval instars of S. exigua were susceptible to parasitism by M. pulchricornis, but rates were higher in intermediate-aged hosts than in hosts at opposite ends of the age continuum. Conversely, parasitoid mortality from egression to adult eclosion was higher in the youngest and oldest host larvae. Adult parasitoid size increased significantly in line with host size at time of parasitism, but development time from oviposition to adult eclosion was greater when intermediate-aged hosts were selected than in when hosts at opposite ends of the age continuum were used. Developmental flexibility and host regulation appeared to be important to the parasitoid, in that the host instar from which parasitoid larvae emerged varied depending on when parasitism took place in the L, through L3 host instars. The duration of the final instar of parasitized host larvae was significantly prolonged compared with unparasitized larvae under most circumstances, but was shortened when the host was parasitized in instar L2 or L3, with parasitoids emerging from the L5 host larvae.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 004511380

Download citation: RISBibTeXText

DOI: 10.1016/j.biocontrol.2006.01.007

Related references

Effects of Helicoverpa armigera (Noctuidae, Lepidoptera) host stages on some developmental parameters of the uniparental endoparasitoid Meteorus pulchricornis (Braconidae, Hymenoptera). Bulletin of Entomological Research 98(2): 109-114, 2008

Host-stage selection for Spodoptera exigua larvae and the effect on developmental parameters of solitary endoparasitoid in Meteorus pulchricornis (Hymenoptera: Braconidae). Journal of Nanjing Agricultural University 29(2): 66-70, 2006

An ascovirus isolated from Spodoptera litura (Noctuidae: Lepidoptera) transmitted by the generalist endoparasitoid Meteorus pulchricornis (Braconidae: Hymenoptera). Journal of General Virology 99(4): 574-584, 2018

Toxicity of ethyl acetate extract from Jatropha gossypifolia senescent leaves against Spodoptera exigua Hübner (Lepidoptera: Noctuidae) and Meteorus pulchricornis (Hymenoptera: Braconidae). Communications in Agricultural and Applied Biological Sciences 75(3): 405-410, 2010

Effects of parasitism by Meteorus pulchricornis Wesmael Hymenoptera Braconidae on food consumption and utilization of its host Spodoptera exigua Huebner Lepidoptera Noctuidae larvae. Acta Entomologica Sinica 51.10 (October 20): 1017-1021, 2008

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae). Applied Entomology and Zoology 40(2): 325-334, 2005

Laboratory biology of a uniparental strain of Meteorus pulchricornis (Hymenoptera: Braconidae), an exotic larval parasite of the gypsy moth (Lepidoptera: Lymantriidae). Annals of the Entomological Society of America 86(3): 298-304, 1993

No impact of transgenic nptII-leafy Pinus radiata (Pinales: Pinaceae) on Pseudocoremia suavis (Lepidoptera: Geometridae) or its endoparasitoid Meteorus pulchricornis (Hymenoptera: Braconidae). Environmental Entomology 40(5): 1331-1340, 2011

Interactions between the solitary endoparasitoid, Meteorus gyrator (Hymenoptera: Braconidae) and its host, Lacanobia oleracea (Lepidoptera: Noctuidae), infected with the entomopathogenic microsporidium, Vairimorpha necatrix (Microspora: Microsporidia). Bulletin of Entomological Research 95(2): 133-144, 2005

Effects of Helicoverpa armigera host stages on some developmental parameters of the uniparental endoparasitoid Meteorus pulchricornis. Bulletin Of Entomological Research: 2, 109-114, 2008

Interspecific interaction between Spodoptera exigua multiple nucleopolyhedrovirus and Microplitis bicoloratus (Hymenoptera: Braconidae: Microgastrina) in Spodoptera exigua (Lepidoptera: Noctuidae) larvae. Journal of Economic Entomology 105(5): 1503-1508, 2012

The major constituents of the venom gland of a braconid endoparasitoid,Meteorus pulchricornis(Hymenoptera: Braconidae). Applied Entomology and Zoology 52(2): 271-285, 2017

Intraspecific larval competition in Meteorus pulchricornis (Hymenoptera: Braconidae), a solitary endoparasitoid of lepidopteran larvae. Applied Entomology and Zoology 43(2): 159-165, 2008

Interactions between Meteorus pulchricornis and Spodoptera exigua multiple nucleopolyhedrovirus. Journal of Insect Science 13: 12, 2013

Candidate chemosensory genes identified in the endoparasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) by antennal transcriptome analysis. Comparative Biochemistry and Physiology. Part D Genomics and Proteomics 22: 20-31, 2017