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

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
*
Author to whom correspondence should be addressed.
§
Present address: Créa, 215 Avenue de la Roche Parnale, ZI Motte Longue, 74130 Bonneville, France.
Viruses 2014, 6(12), 5135-5144; https://doi.org/10.3390/v6125135
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)
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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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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