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Correction published on 3 December 2015, see Viruses 2015, 7(12), 6313-6315.

Open AccessArticle
Viruses 2014, 6(12), 5135-5144; doi:10.3390/v6125135

Progressive Adaptation of a CpGV Isolate to Codling Moth Populations Resistant to CpGV-M

1
LGEI, Ecole des Mines d'Alès, Institut Mines-Telecom et Université de Montpellier Sud de France, 6, Avenue de Clavières, 30319 Alès, France
2
Natural Plant Protection, Arysta LifeScience group, Avenue Léon Blum, 64000 Pau, France
3
INRA, 6, Avenue de Clavières, 30319 Alès, France
4
INRA, Unité PSH, Agroparc, 84914 Avignon Cedex 9, France
§
Present address: Créa, 215 Avenue de la Roche Parnale, ZI Motte Longue, 74130 Bonneville, France.
*
Author to whom correspondence should be addressed.
Received: 17 September 2014 / Revised: 4 December 2014 / Accepted: 15 December 2014 / Published: 22 December 2014
(This article belongs to the Special Issue Insect Viruses and Their Use for Microbial Pest Control)
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Abstract

The NPP-R1 isolate of CpGV is able to replicate on CpGV-M-resistant codling moths. However, its efficacy is not sufficient to provide acceptable levels of control in natural (orchard) conditions. A laboratory colony derived from resistant codling moths was established, which exhibited a homogeneous genetic background and a resistance level more than 7000 fold. By successive cycles of replication of NPP-R1 in this colony, we observed a progressive increase in efficacy. After 16 cycles (isolate 2016-r16), the efficacy of the virus isolate was equivalent to that of CpGV-M on susceptible insects. This isolate was able to control both CpGV-M-susceptible and CpGV-M-resistant insects with similar efficacy. No reduction in the levels of occlusion body production in susceptible larvae was observed for 2016-r16 compared to CpGV-M. View Full-Text
Keywords: Cydia pomonella granulovirus; coddling moth; resistance development; biological control Cydia pomonella granulovirus; coddling moth; resistance development; biological control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Graillot, B.; Berling, M.; Blachere-López, C.; Siegwart, M.; Besse, S.; López-Ferber, M. Progressive Adaptation of a CpGV Isolate to Codling Moth Populations Resistant to CpGV-M. Viruses 2014, 6, 5135-5144.

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