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Host testing of Eadya daenerys, a potential biological control agent for the invasive chrysomelid pest Paropsis charybdis, predicts host specificity to eucalypt-leaf feeding Paropsina

journal contribution
posted on 2023-05-20, 07:59 authored by Withers, TM, Todoroski, CL, Geoff AllenGeoff Allen, Pugh, AR, Gresham, BA
Host range testing of a larval endoparasitoid Eadya daenerys Ridenbaugh (Hymenoptera: Braconidae) was conducted. Eadya daenerys is most commonly associated with Paropsisterna agricola (Chapuis) in Australia, but is proposed as a biological control agent for Paropsis charybdis Stål (Coleoptera: Chrysomelidae) in New Zealand. Nine species of non-target beetles with spring-active, external leaf-feeding larvae, were host tested. Development to emergence only occurred within eucalypt-feeding Paropsina pests: the target P. charybdis and another pest Trachymela sloanei (Blackburn). Unsuccessful internal parasitism occurred in four less closely related non-target Chrysomelinae. Considering the different feeding niches occupied by these beetles, we hypothesize that Eadya daenerys is unlikely to cause direct non-target impacts beyond pest Paropsina species in the New Zealand environment.

Funding

Scion New Zealand Forest Research Institute Limited

History

Publication title

Biocontrol

Volume

25

Pagination

25-36

ISSN

1386-6141

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Kluwer Academic Publ

Place of publication

Van Godewijckstraat 30, Dordrecht, Netherlands, 3311 Gz

Rights statement

Copyright 2019 International Organization for Biological Control (IOBC)

Repository Status

  • Restricted

Socio-economic Objectives

Hardwood plantations

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