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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, BAHost 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
BiocontrolVolume
25Pagination
25-36ISSN
1386-6141Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Kluwer Academic PublPlace of publication
Van Godewijckstraat 30, Dordrecht, Netherlands, 3311 GzRights statement
Copyright 2019 International Organization for Biological Control (IOBC)Repository Status
- Restricted