Mobility and efficacy of abamectinand imidacloprid against Rhynchophorusferrugineus in Phoenix canariensis by differentapplication methods
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Otros documentos de la autoría: Dembilio, Óscar; Riba, Josep M.; Gamón, Miquel; Jaques , Josep A.
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http://dx.doi.org/10.1002/ps.3889 |
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Título
Mobility and efficacy of abamectinand imidacloprid against Rhynchophorusferrugineus in Phoenix canariensis by differentapplication methodsFecha de publicación
2014Editor
WileyISSN
1526-498X; 1526-4998Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/ps.3889/epdfPalabras clave / Materias
Resumen
BACKGROUND: Rhynchophorus ferrugineus is the most destructive pest of palms. As detection of early infestation stages isdifficult, preventive measures, mostly chemical control, are crucial. Stipe injection of insect ... [+]
BACKGROUND: Rhynchophorus ferrugineus is the most destructive pest of palms. As detection of early infestation stages isdifficult, preventive measures, mostly chemical control, are crucial. Stipe injection of insecticides has developed rapidly asa suitable technique. However, pesticide movement within palms and palm reaction to wounding remain controversial. Weused abamec tin and imidacloprid applied by crown spray, stipe and frond injections to disentangle how these pesticides movewithin P. canariensis and how tissues wounded by injection heal. Furthermore, we established their lethal doses to larvae of R.ferrugineus.RESULTS: Maximum residues of imidacloprid (0.1 mg kg−1) were detected in crown and frond samples for up to 2 months afterstipe injection, whereas maximum residues of abamectin were found in frond tip samples (0.5 mg active substance kg−1)5months after stipe injection. Based on the lethal concentrations calculated, these doses could satisfactorily protect palms forup to 3 months after treatment. No significant wound damage was observed 2 years after injection.CONCLUSION: Stipe injection, irrespective of the active substance considered, resulted in better distribution and higherpersistence compared with frond injection and, especially, crown spray. As a consequence, our results point to stipe injection asa good alternative to control R. ferrugineus. [-]
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Pest Management Science, 71, p. 1091-1098Derechos de acceso
© 2014 Societ y of Chemical Industry
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