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Influence of agricultural extension activities on tick control among cattle on family dairy farms in the southeast Brazil
Duarte, Fernanda Calvo; Roma Junior, Luiz Carlos; Santos, Marcelo Luz; Fiorini, Leonardo Costa; Mendes, Márcia Cristina.
Affiliation
  • Duarte, Fernanda Calvo; Instituto Biológico. Centro de Pesquisa em Sanidade Animal. São Paulo. BR
  • Roma Junior, Luiz Carlos; Instituto de Zootecnia. Centro de Pesquisa em Bovinos de Leite. Nova Odessa. BR
  • Santos, Marcelo Luz; Instituto Biológico. Centro de Pesquisa em Sanidade Animal. São Paulo. BR
  • Fiorini, Leonardo Costa; Instituto Biológico. Centro de Pesquisa em Sanidade Animal. São Paulo. BR
  • Mendes, Márcia Cristina; Instituto Biológico. Centro de Pesquisa em Sanidade Animal. São Paulo. BR
Arq. Inst. Biol ; 88: e00482020, 2021. tab, graf
Article de En | LILACS, VETINDEX | ID: biblio-1349006
Bibliothèque responsable: BR1942.1
ABSTRACT
The aim of the present study was to evaluate the resistance of tick populations on 16 family farms that were members of the agricultural producers' cooperative of the São Pedro region of the state of São Paulo (COOPAMSP). Bioassays were conducted on nine commercial products in 2018 and 2019. Their active agents were as follows deltamethrin, amitraz, cypermethrin + chlorpyrifos + citronella, cypermethrin + chlorpyrifos + fenthion, cypermethrin + chlorpyrifos + piperonyl butoxide, dichlorvos + chlorpyrifos, cypermethrin, chlorfenvinphos + dichlorvos, and ivermectin. On some farms, a larval packet test (LPT) was also performed. Overall, four acaricides presented mean efficacy greater than 89%, among which two were associations of pyrethroids + organophosphates and two were associations of organophosphates + organophosphates. Deltamethrin, cypermethrin and ivermectin presented mean efficacy lower than 50%. In the bioassays using the LPT, all five farms showed resistance to diazinon, while only one farm presented resistance to cypermethrin. The results were handed over to each farmer with appropriate guidance for treatments. This study demonstrated that the important points to be implemented related directly to use control strategies, based on direct assistance for farmers and diagnosis of tick population sensitivities.
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Texte intégral: 1 Indice: LILACS Sujet Principal: Tiques / Lutte contre les tiques / Acaricides Type d'étude: Guideline Pays comme sujet: America do sul / Brasil langue: En Texte intégral: Arq. Inst. Biol Thème du journal: BIOLOGIA / MEDICINA VETERINARIA / SAUDE PUBLICA Année: 2021 Type: Article

Texte intégral: 1 Indice: LILACS Sujet Principal: Tiques / Lutte contre les tiques / Acaricides Type d'étude: Guideline Pays comme sujet: America do sul / Brasil langue: En Texte intégral: Arq. Inst. Biol Thème du journal: BIOLOGIA / MEDICINA VETERINARIA / SAUDE PUBLICA Année: 2021 Type: Article