Current status of insecticide resistance in Q biotype Bemisia tabaci populations from Crete

dc.contributor.author	Roditakis, E	en
dc.contributor.author	Grispou, M	en
dc.contributor.author	Morou, E	en
dc.contributor.author	Kristoffersen, JB	en
dc.contributor.author	Roditakis, N	en
dc.contributor.author	Nauen, R	en
dc.contributor.author	Vontas, J	en
dc.contributor.author	Tsagkarakou, A	en
dc.date.accessioned	2014-06-06T06:49:18Z
dc.date.available	2014-06-06T06:49:18Z
dc.date.issued	2009	en
dc.identifier.issn	1526498X	en
dc.identifier.uri	http://dx.doi.org/10.1002/ps.1690	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4518
dc.subject	α-cypermethrin	en
dc.subject	Bemisia tabaci	en
dc.subject	Crete	en
dc.subject	Imidacloprid	en
dc.subject	Insecticide resistance	en
dc.subject	Pirimiphosmethyl	en
dc.subject	Q biotype	en
dc.subject.other	cipermethrin	en
dc.subject.other	imidacloprid	en
dc.subject.other	imidazole derivative	en
dc.subject.other	insect protein	en
dc.subject.other	insecticide	en
dc.subject.other	nitro derivative	en
dc.subject.other	oxygenase	en
dc.subject.other	pyrethroid	en
dc.subject.other	bioassay	en
dc.subject.other	biotype	en
dc.subject.other	carbamate	en
dc.subject.other	crop production	en
dc.subject.other	enzyme activity	en
dc.subject.other	organophosphate	en
dc.subject.other	pesticide resistance	en
dc.subject.other	pyrethroid	en
dc.subject.other	whitefly	en
dc.subject.other	animal	en
dc.subject.other	article	en
dc.subject.other	classification	en
dc.subject.other	drug effect	en
dc.subject.other	enzymology	en
dc.subject.other	Greece	en
dc.subject.other	Hemiptera	en
dc.subject.other	insecticide resistance	en
dc.subject.other	metabolism	en
dc.subject.other	Animals	en
dc.subject.other	Greece	en
dc.subject.other	Hemiptera	en
dc.subject.other	Imidazoles	en
dc.subject.other	Insect Proteins	en
dc.subject.other	Insecticide Resistance	en
dc.subject.other	Insecticides	en
dc.subject.other	Nitro Compounds	en
dc.subject.other	Oxygenases	en
dc.subject.other	Pyrethrins	en
dc.subject.other	Crete	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Europe	en
dc.subject.other	Aleyrodidae	en
dc.subject.other	Bemisia tabaci	en
dc.subject.other	Hemiptera	en
dc.title	Current status of insecticide resistance in Q biotype Bemisia tabaci populations from Crete	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/ps.1690	en
heal.publicationDate	2009	en
heal.abstract	BACKGROUND: A major problem of crop protection in Crete, Greece, is the control of Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) with chemical insecticides owing to the rapid development of resistance. The aim of this study was to investigate the establishment of resistance and the underlying mechanisms to major insecticide classes with classical bioassays and known biochemical resistance markers. RESULTS: During a 2005-2007 survey, 53 Q biotype populations were collected. Application history records showed extensive use of neonicotinoids, organophosphates, carbamates and pyrethroids. High resistance levels were identified in the majority of populations (>80%) for imidacloprid (RF: 38-1958x) and α-cypermethrin (RF: 30-600x). Low resistance levels (RF < 12) were observed for pirimiphos-methyl. A strong correlation between resistance to imidacloprid and the number of applications with neonicotinoids was observed. Significant correlations were observed between COE and P450-dependent monoxygenase activity with resistance to α-cypermethrin and imidacloprid respectively. A propoxur-based AChE diagnostic test indicated that iAChE was widespread in most populations. Resistance levels for α-cypermethrin were increased when compared with a previous survey (2002-2003). Differentiation of LC50 values between localities was observed for imidacloprid only. CONCLUSION: Bemisia tabaci resistance evolved differently in each of the three insecticides studied. Imidacloprid resistance seems less established and less persistent than α-cypermethrin resistance. The low resistance levels for pirimiphos-methyl suggest absence of cross-resistance with other organophosphates or carbamates used. © 2008 Society of Chemical Industry.	en
heal.journalName	Pest Management Science	en
dc.identifier.issue	3	en
dc.identifier.volume	65	en
dc.identifier.doi	10.1002/ps.1690	en
dc.identifier.spage	313	en
dc.identifier.epage	322	en