Data/hora: 04/06/2024 06:48:47

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 01/03/2001
Data da última atualização: | 30/03/2017
Autoria: | BARROS, A. T. M.; OTTEA, J.; SANSON, D.; FOIL, L. D.
Afiliação: | EMBRAPA Pantanal (Corumba, MS). Louisiana State University (Louisiana, USA).
Título: | Horn fly (Diptera: Muscidae) resistance to organophosphate insecticides.
Ano de publicação: | 2001
Fonte/Imprenta: | Veterinary Parasitology, v.96, p.243-256, 2001.
Idioma: | Inglês
Conteúdo: | Insecticidal ear tags impregnated with organophosphate (OP) insecticides were used each year from 1989 to 1998 at Rosepine, LA. Weekly fly counts were conducted to evaluated control efficancy of the treatments, and bioassay were conducted at least twice per year to measure fly susceptibility to OP and pyrethroid insecticides. Between 1989 and 1992, the efficacy of 20% diazinon-impregnated ear tags was reduced from >20 to just 1 week of control. A high risk of control failure was observed when a resistance frequency of approximately 5% was measured in pre-season bioassays. Resistance to diazinon, fenthion, ethion, pirimiphos-methyl, and tetrachlorviphos was observed. Esterase activity toward -naphthyl acetate was significantly higher in flies collected at Rosepione in 1997 than in flies from a laboratory colony and from a susceptible field population.
Palavras-Chave: | Control; Controle; Horn fly; Insect; Insecticide; Mosca do chifre; Resistance.
Thesagro: | Díptera; Haematobia Irritans; Inseticida; Inseto; Resistência.
Thesaurus Nal: | Muscidae.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (48282-1) - UPC - SP - PP - SP16219 -  - 16219 - DIS