Control failure likelihood and spatial dependence of insecticide resistance in the tomato pinworm, Tuta absoluta

dc.creatorSilva, Gerson A.
dc.creatorPicanço, Marcelo C.
dc.creatorBacci, Leandro
dc.creatorCrespo, André Luiz B.
dc.creatorRosado, Jander F.
dc.creatorGuedes, Raul Narciso C.
dc.date2018-06-04T11:52:51Z
dc.date2018-06-04T11:52:51Z
dc.date2011-03-10
dc.date.accessioned2023-09-27T22:13:35Z
dc.date.available2023-09-27T22:13:35Z
dc.identifier15264998
dc.identifierhttps://doi.org/10.1002/ps.2131
dc.identifierhttp://www.locus.ufv.br/handle/123456789/19895
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8972380
dc.descriptionInsecticide resistance is a likely cause of field control failures of Tuta absoluta, but the subject has been little studied. Therefore, resistance to ten insecticides was surveyed in seven representative field populations of this species. The likelihood of control failures was assessed, as well as weather influence and the spatial dependence of insecticide resistance. No resistance or only low resistance levels were observed for pyrethroids (bifenthrin and permethrin), abamectin, spinosad, Bacillus thuringiensis and the mixture deltamethrin + triazophos (<12.5-fold). In contrast, indoxacarb exhibited moderate levels of resistance (up to 27.5-fold), and chitin synthesis inhibitors exhibited moderate to high levels of resistance (up to 222.3-fold). Evidence of control failures was obtained for bifenthrin, permethrin, diflubenzuron, teflubenzuron, triflumuron and B. thuringiensis. Weather conditions favour resistance to some insecticides, and spatial dependence was observed only for bifenthrin and permethrin. Insecticide resistance in field populations of the tomato pinworm prevails for the insecticides nowadays most frequently used against them – the chitin synthesis inhibitors (diflubenzuron, triflumuron and teflubenzuron). Local selection favoured by weather conditions and dispersal seem important for pyrethroid resistance evolution among Brazilian populations of T. absoluta and should be considered in designing pest management programmes.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherPest Management Science
dc.relationv. 67, Issue 8, p. 913-920, August 2011
dc.rightsOpen Access
dc.subjectInsect growth regulators
dc.subjectInsecticide resistance distribution
dc.subjectVegetable crops
dc.subjectBrazil
dc.subjectPest control
dc.titleControl failure likelihood and spatial dependence of insecticide resistance in the tomato pinworm, Tuta absoluta
dc.typeArtigo


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