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Mem Inst Oswaldo Cruz

Title:		"Monitoring temporal fluctuations of Culex quinquefasciatus using oviposition traps containing attractant and larvicide in an urban environment in Recife, Brazil"
Author(s):		Barbosa RM; Regis LN;
Address:		"Departamento de Entomologia, Centro de Pesquisas Aggeu Magalhaes, Fiocruz, Recife, PE, Brasil. barbosar@cpqam.fiocruz.br"
Journal Title:		Mem Inst Oswaldo Cruz
Year:		2011
Volume:		106
Issue:		4
Page Number:		451 - 455
DOI:		10.1590/s0074-02762011000400011
ISSN/ISBN:		1678-8060 (Electronic) 0074-0276 (Linking)
Abstract:		"The use of attractants and larvicides in oviposition traps is of practical interest for the surveillance and control of urban mosquitoes. In addition to increasing the safety of the traps, this combination is essential for an attract-and-kill control strategy based on trapping mosquito eggs. The combination of Bacillus thuringiensis var. israelensis (Bti) and grass infusion (GI) vs. GI alone were tested for their ability to attract in paired BR-OVT traps in the backyards of 10 houses in Recife, Brazil, for a period of 45 days. Results show that females prefer to oviposit in traps containing Bti (363 compared with 251 egg rafts over 45 days). Results from a one-year trial on the efficacy of BR-OVT traps loaded with GI and Bti as a sampling tool to monitor temporal fluctuations in the population densities of Culex quinquefasciatus in an urban environment are also reported. From December 2006-January 2007, one trap per home was installed and maintained for 348 consecutive days in 134-151 houses located in three urban blocks. Throughout the one-year field trial a total of 43,151 Culex egg rafts were collected in the traps. The data show that BR-OVT loaded with GI and Bti is sensitive enough to demonstrate continuous reproductive activity of Cux. quinquefasciatus in the study area throughout the year and to monitor temporal fluctuations in population density"
Keywords:		Animals *Culex Female Insecticides Larva Mosquito Control/*methods Oviposition Population Density Seasons Sex Attractants/*pharmacology Urban Population;
Notes:		"MedlineBarbosa, Rosangela Maria Rodrigues Regis, Leda Narcisa eng Brazil 2011/07/09 Mem Inst Oswaldo Cruz. 2011 Jun; 106(4):451-5. doi: 10.1590/s0074-02762011000400011"