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Susceptibility of preimaginal western cherry fruit fly, Rhagoletis indifferens (Diptera: Tephritidae) to Beauveria bassiana (Balsamo) Vuillemin Clavicipitaceae (Hypocreales)

Abstract::
Last-instar larvae of the western cherry fruit fly, Rhagoletis indifferens, were subjected to Beauveria bassiana GHA incorporated into sterile sand and non-sterile orchard soil. Mycosis in the pupal stage was observed in >20% of buried R. indifferens pupae and >80% of larvae entering sand treated with either of two B. bassiana isolates. When pre-pupal larvae burrowed into conidium-treated non-sterile cherry orchard soil, the incidence of mycosis, on both the puparia and internally developing pupae, increased with dose. Internal pupal tissues were found to contain B. bassiana. Increasing the soil moisture level from 20% to 35% water holding capacity did not have an effect on the percentage of mycosed pupae. This is the first evidence that the preimaginal stages of R. indifferens are susceptible to infection by B. bassiana.
Author(s):
Cossentine, J. , Thistlewood, H. , Goettel, M. , Jaronski, S.
Subject(s):
Rhagoletis indifferens , insect pests , biological control , insect control , Beauveria bassiana , mycoinsecticides , larvae
Description:
Includes references
Source:
Journal of invertebrate pathology 2010 June, v. 104, issue 2
Language:
English
Year:
2010
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
File:
Download [PDF]   
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.