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Parasitism and host-location preference in Habrobracon hebetor (Hymenoptera: Braconidae): role of refuge, choice, and host instar.
J Econ Entomol. 2009 Apr; 102(2):610-5.JE

Abstract

Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) is a cosmopolitan insect infesting a broad range of commodities, including raw or processed cereal. It has a high fecundity and short generation time, making it a useful tool in testing host-parasitoid hypotheses. The current study examined the interactions between trophic levels during parasitism and host location by Habrobracon hebetor Say (Hymenoptera: Braconidae) within a closed environment by carrying out multiple tests to evaluate the role of refuge and host instar, on the mortality of P. interpunctella and on the emergence of H. hebetor. Results showed that H. hebetor was able to parasitize all instars (first through fourth) of P. interpunctella, but significantly fewer early instars (first through fourth) were parasitized. Parasitized third and fourth instars were more profitable to H. hebetor, irrespective of refuge or choice factors, as significantly more adult parasitoids emerged from third and fourth instars. H. hebetor females consistently showed a preference for fourth instars of P. interpunctella when they were offered a choice between early and late host instars in arenas both with and without a refuge. Generally, parasitization of early instars was higher in no-choice than in choice tests. The behavior of H. hebetor in relation to host choice and its influence on the pest mortality are discussed.

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Authors+Show Affiliations

Akinkurolere RO
Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control and Institute of Urban Pests, College of Plant Science and Technology, Huazhong Agricultural University, People's Republic of China.
Boyer S
No affiliation info available
Chen H
No affiliation info available
Zhang H
No affiliation info available

MeSH

AnimalsFemaleHost-Parasite InteractionsLarvaMothsOvipositionWasps

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19455754

Citation

Akinkurolere, R O., et al. "Parasitism and Host-location Preference in Habrobracon Hebetor (Hymenoptera: Braconidae): Role of Refuge, Choice, and Host Instar." Journal of Economic Entomology, vol. 102, no. 2, 2009, pp. 610-5.
Akinkurolere RO, Boyer S, Chen H, et al. Parasitism and host-location preference in Habrobracon hebetor (Hymenoptera: Braconidae): role of refuge, choice, and host instar. J Econ Entomol. 2009;102(2):610-5.
Akinkurolere, R. O., Boyer, S., Chen, H., & Zhang, H. (2009). Parasitism and host-location preference in Habrobracon hebetor (Hymenoptera: Braconidae): role of refuge, choice, and host instar. Journal of Economic Entomology, 102(2), 610-5.
Akinkurolere RO, et al. Parasitism and Host-location Preference in Habrobracon Hebetor (Hymenoptera: Braconidae): Role of Refuge, Choice, and Host Instar. J Econ Entomol. 2009;102(2):610-5. PubMed PMID: 19455754.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Parasitism and host-location preference in Habrobracon hebetor (Hymenoptera: Braconidae): role of refuge, choice, and host instar. AU - Akinkurolere,R O, AU - Boyer,Sebastien, AU - Chen,Haoliang, AU - Zhang,Hongyu, PY - 2009/5/22/entrez PY - 2009/5/22/pubmed PY - 2009/6/10/medline SP - 610 EP - 5 JF - Journal of economic entomology JO - J Econ Entomol VL - 102 IS - 2 N2 - Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) is a cosmopolitan insect infesting a broad range of commodities, including raw or processed cereal. It has a high fecundity and short generation time, making it a useful tool in testing host-parasitoid hypotheses. The current study examined the interactions between trophic levels during parasitism and host location by Habrobracon hebetor Say (Hymenoptera: Braconidae) within a closed environment by carrying out multiple tests to evaluate the role of refuge and host instar, on the mortality of P. interpunctella and on the emergence of H. hebetor. Results showed that H. hebetor was able to parasitize all instars (first through fourth) of P. interpunctella, but significantly fewer early instars (first through fourth) were parasitized. Parasitized third and fourth instars were more profitable to H. hebetor, irrespective of refuge or choice factors, as significantly more adult parasitoids emerged from third and fourth instars. H. hebetor females consistently showed a preference for fourth instars of P. interpunctella when they were offered a choice between early and late host instars in arenas both with and without a refuge. Generally, parasitization of early instars was higher in no-choice than in choice tests. The behavior of H. hebetor in relation to host choice and its influence on the pest mortality are discussed. SN - 0022-0493 UR - https://www.unboundmedicine.com/medline/citation/19455754/Parasitism_and_host_location_preference_in_Habrobracon_hebetor__Hymenoptera:_Braconidae_:_role_of_refuge_choice_and_host_instar_ L2 - https://academic.oup.com/jee/article-lookup/doi/10.1603/029.102.0219 DB - PRIME DP - Unbound Medicine ER -
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