To assess the risk of occurrence of potential cases of lesser etofenprox sensitivity in wild populations of Cydia molesta, more than 10 years after its commercial release, a multi-year laboratory study was started to measure the efficacy of Trebon Star, at normal used doses, on: a) a laboratory reared population of C. molesta and identified as a reference strain as it has been never subjected to treatments with etofenprox based insecticide; b) several wild populations, collected from peach orchards in Romagna, where the product has been used for many years. Trebon Star, even in such situations where the control with other insecticides was difficult, retains fully its effectiveness and was able to produce, on wild populations, mortality rates that are identical and in some cases even better than those obtained with the reference population.
Al fine di valutare il rischio d’insorgenza di possibili fenomeni di minor sensibilità all’etofenprox da parte di popolazioni selvatiche di Cydia molesta, dopo più di 10 anni dalla sua immissione in commercio, si è intrapreso uno studio poliennale di laboratorio per misurare l’efficacia del formulato Trebon Star, alle normali dosi d’impiego, su: a) una popolazione di C. molesta allevata in laboratorio e individuata come ceppo di riferimento non essendo mai stata sottoposta a trattamenti con insetticidi a base di etofenprox; b) varie popolazioni selvatiche, prelevate da pescheti romagnoli, dove il prodotto viene impiegato da diversi anni. Trebon Star, anche in situazioni “difficili” per altri insetticidi, mantiene pienamente la sua efficacia ed ha consentito di ottenere sulle popolazioni selvatiche percentuali di mortalità identiche e in alcuni casi anche migliori rispetto a quelle ottenute con la popolazione di riferimento.
Mazzoni, E., Molinari, F., Anaclerio, M., Panini, M., Fedeli, C., Pavesi, F., Casali, G., Pagani, M. R., Zanzi, L., Valutazione di efficacia di etofenprox su popolazioni selvatiche di Cydia molesta, in Atti delle Giornate Fitopatologiche 2010, (Cervia (RA), 09-12 March 2010), Clueb, Bologna 2010: 93-98 [http://hdl.handle.net/10807/8164]
Valutazione di efficacia di etofenprox su popolazioni selvatiche di Cydia molesta
Mazzoni, Emanuele;Molinari, Fabio;Anaclerio, Matteo;Panini, Michela;Fedeli, Chiara;Pavesi, Ferdinando;
2010
Abstract
To assess the risk of occurrence of potential cases of lesser etofenprox sensitivity in wild populations of Cydia molesta, more than 10 years after its commercial release, a multi-year laboratory study was started to measure the efficacy of Trebon Star, at normal used doses, on: a) a laboratory reared population of C. molesta and identified as a reference strain as it has been never subjected to treatments with etofenprox based insecticide; b) several wild populations, collected from peach orchards in Romagna, where the product has been used for many years. Trebon Star, even in such situations where the control with other insecticides was difficult, retains fully its effectiveness and was able to produce, on wild populations, mortality rates that are identical and in some cases even better than those obtained with the reference population.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.