Foliar application of microdoses of sucrose to reduce codling moth Cydia pomonella L. (Lepidoptera: Tortricidae) damage to apple trees

Autor: Arnault, Ingrid, Lombarkia, Nadia, Joy-Ondet, Sophie, Romet, Lionel, Brahim, Imene, Meradi, Rahma, Nasri, Ardjouna, Auger, Jacques, Derridj, Sylvie
Přispěvatelé: CETU Innophyt, Université de Tours (UT), Batna University, Grp Rech Agr Biol, Avignon, France, Partenaires INRAE, Cooperat Agr Provence Languedoc, Aix En Provence, France, Institut de recherche sur la biologie de l'insecte UMR7261 (IRBI), Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Physiologie de l'Insecte : Signalisation et Communication (PISC), Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National Agronomique Paris-Grignon (INA P-G), Office National des Eaux et des Milieux aquatiques, National Action Plan Ecophyto, Université de Tours, Université de Tours-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Pest Management Science
Pest Management Science, 2016, 72 (10), pp.1901-1909. ⟨10.1002/ps.4228⟩
Pest Management Science, Wiley, 2016, 72 (10), pp.1901-1909. ⟨10.1002/ps.4228⟩
ISSN: 1526-498X
1526-4998
Popis: International audience; BACKGROUNDThe effects of foliar applications of microdoses of sucrose to reduce the damage by the codling moth have been reported from nine trials carried in France and Algeria from 2009 to 2014. The activity of sucrose alone was assessed by comparison with an untreated control and some treatments with the Cydia pomonella granulovirus or a chemical insecticide. The addition of sucrose to these different treatments was also investigated. RESULTSThe application of sucrose at 0.01% reduced the means of infested fruits with a value of Abbott's efficacy of 41.0 10.0%. This involved the induction of resistance by antixenosis to insect egg laying. Indeed, it seems that acceptance of egg laying on leaves treated with sucrose was reduced. The addition of sucrose to thiacloprid improved its efficacy (59.5% +/- 12.8) by 18.4%. However, the sucrose had no added value when associated with C. pomonella granulovirus treatments. CONCLUSIONFoliar applications of microdoses of sucrose every 20 days in commercial orchards can partially protect against the codling moth. Its addition to thiacloprid increases the efficacy in integrated control strategies, contrary to C. pomonella granulovirus treatments. This work opens a route for the development of new biocontrol strategies. (c) 2016 Society of Chemical Industry
Databáze: OpenAIRE
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