Resistance to a nuclear polyhedrosis virus in the light-brown apple moth Epiphyas postvittana (Lepidoptera: Tortricidae) |
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Authors: | D.T. Briese H.A. Mende T.D.C. Grace P.W. Geier |
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Affiliation: | CSIRO Division of Entomology, P.O. Box 1700, Canberra City, 2601 Australia |
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Abstract: | Measurements were made of the relative susceptibility to a nuclear polyhedrosis virus of three populations of light-brown apple moth Epiphyas postvittana: a resistant laboratory strain (CAN), a susceptible laboratory strain (BAR), and a field population. CAN was found to be 50 times more resistant than BAR and 160 times more resistant than the field line. Experiments on hybrid crosses of resistant and susceptible strains showed that resistance is genetically determined. This serves as a warning of the possible selection of virus-resistant strains of insect pests, where viral insecticides are being used in the field. |
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Keywords: | light-brown apple moth nuclear polyhedrosis virus resistance to virus |
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