Title:	Resistance of the stable fly, Stomoxys calcitrans (Diptera: Muscidae), to cypermethrin in outbreak areas in Midwestern Brazil.
Authors:	BARROS, A. T. M. de RODRIGUES, V. D. CANCADO, P. H. D. DOMINGUES. L. N.
Affiliation:	ANTONIO THADEU MEDEIROS DE BARROS, CNPGC; Vinícius Duarte Rodrigues, Universidade Católica Dom Bosco - UCDB/Curso de Medicina Veterinária; PAULO HENRIQUE DUARTE CANCADO, CNPGC; Luísa Nogueira Domingues, USDA-ARS Knipling-Bushland U.S. Livestock Insect Research Laboratory.
Date Issued:	2019
Citation:	Revista Brasileira de Parasitologia Veterinária, v. 28, n. 4, p. 802-806, oct.-dec. 2019.
Description:	Population explosions of the stable fly (Stomoxys calcitrans) have become a serious concern for livestock producers near sugarcane mills in some regions of Brazil due to the insect?s massive reproduction on sugarcane byproducts and waste. Despite the limited efficiency of insecticides for controlling stable fly outbreaks, producers still rely on chemical control to mitigate the alarming infestations in affected areas. This study evaluated the susceptibility of S. calcitrans populations to cypermethrin in the state of Mato Grosso do Sul, Brazil. Stable flies were tested from three field populations and two colonies, established from flies previously collected at sugarcane mills. Wild flies were collected with Nzi traps in areas of sugarcane plantations. Both wild and colonized flies were exposed to eleven concentrations of cypermethrin in impregnated filter paper bioassays. All the populations proved to be resistant to cypermethrin, with resistance factors among field populations ranging from 6.8 to 38.6. The intensive use of insecticides has led to the development of pyrethroid resistance in stable fly populations in the proximities of sugarcane mills in the state of Mato Grosso do Sul.
Thesagro:	Controle Químico
NAL Thesaurus:	Chemical control Insecticide resistance
Keywords:	Stable fly outbreaks Surto de mosca-dos-estábulos
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPGC)