2024-03-29T09:29:38Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/1750402024-02-20T14:02:50Zcom_10234_2508com_10234_9col_10234_6999
Repositori UJI
author
Dembilio, Óscar
author
Moya, Pilar
author
Vacas, Sandra
author
Ortega-García, Lola
author
QUESADA-MORAGA, ENRIQUE
author
Jaques , Josep A.
author
Navarro-Llopis, Vicente
2018-06-08T09:36:24Z
2018-06-08T09:36:24Z
2018
1526-498X1526-4998
http://hdl.handle.net/10234/175040
https://doi.org/10.1002/ps.4888
BACKGROUND: A new Beauveria bassiana-based attract and infec t device (AID) to control Rhynchophorus ferrugineus Olivier(Coleoptera: Curculionidae) was developed. The virulence and persistence of the fungal formulation u sed in the AID wereevaluated in the laboratory. Semi-field and field trials were carried out to validate the results and establish the potential ofthis device as a control tool.RESULTS: In laboratory conditions, a 50% lethal time (LT50) of 4.33 days was obtained when adults (7–10 days old) were exposedto the inoculation tunnel (IT) containing 1 × 1010conidia g–1in an oil-based fungal formulation. This formulation maintainedconidium viability at 50% for up to 2 months. Moreover, when adults were exposed to 2.5-month field-aged ITs, mortality stillreached 50% 40 days after exposure. In addition, no differences were observed between ITs aged in early spring and those agedin summer, suggesting that the fungal formulation is not strongly affected by environmental factors in Mediterranean basinconditions. Semi-field assays showed that the device allowed an easy transit of weevils through the IT, which were effectivelyattracted and infec ted. Using the AIDs in 4-ha plot field trials, a reduction of >50% in the percentage of infested sentinel palmswas obtained.CONCLUSION: Based on the results obtained in terms of the efficacy and persistence of this new AID in the field and its potentialin reducing R. ferrugineus populations and palm infestation, this device could become a key tool for the management of R.ferrugineus.
eng
© 2018 Society of Chemical Industry
red palm weevil
Curculionidae
entomopathogenic fungi
infective device
Development of an attract-and-infect system to control Rhynchophorus ferrugineus with the entomopathogenic fungus Beauveria bassiana
info:eu-repo/semantics/article
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