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Differences in susceptibility to a granulosis virus between field populations of the potato moth, Phthorimaea Operculella (Zeller) (Lepidoptera: Gelechiidae)

Published online by Cambridge University Press:  10 July 2009

D. T. Briese  and
H. A. Mende
D. T. Briese
Affiliation:
CSIRO Division of Entomology, P.O. Box 1700, Canberra City 2601, Australia
H. A. Mende
Affiliation:
CSIRO Division of Entomology, P.O. Box 1700, Canberra City 2601, Australia
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Abstract

A laboratory bioassay technique was used to compare the susceptibility to a granulosis virus of 16 field populations of Phthorimaea operculella (Zell.) in Australia. A difference of 11·6× was found between the most and least susceptible population, while a laboratory strain was over 30 × as resistant as some field populations. It is suggested that this variability might reflect the past history of exposure of different populations to the virus, which appears to be endemic. The implications for the use of this virus as a microbial control agent are discussed.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 71 , Issue 1 , March 1981 , pp. 11 - 18
Copyright
Copyright © Cambridge University Press 1981

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