Evidence of acaricide resistance in different life stages of Amblyomma mixtum and Rhipicephalus microplus (Acari: Ixodidae) collected from the same farm in the state of Veracruz, Mexico.
Prev Vet Med
; 174: 104837, 2020 Jan.
Article
em En
| MEDLINE
| ID: mdl-31756672
ABSTRACT
The objectives of this study were to evaluate the resistance of Amblyomma mixtum and Rhipicephalus microplus ticks from co-infested bovines from the Veracruz region in Mexico to different acaricide families and to demonstrate the viability of the packet test on different A. mixtum instars. The following acaricide families were used a combination (cypermethrin 15â¯gâ¯+â¯chlorpyrifos 25â¯gâ¯+â¯citronella 1â¯gâ¯+â¯butoxide piperonyl 15â¯g), amidine (formamidine 12.5â¯g), pyrethroid (cypermethrin 15â¯g), and organophosphate (dichlorvos 60â¯gâ¯+â¯chlorpyrifos 20â¯g). Regarding the packet test in both species, resistance was found for the pyrethroid and amidine families in A. mixtum and R. microplus, as efficacy did not surpass 40 %, including in immature instars; regarding the adult immersion test in R. microplus, the efficacy was 93.3 % for the amidine family and 26.2 % for the pyrethroid family. The proposed methodology is an alternative technique to optimize resistance detection in immature ticks with a heteroxenous life cycle.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Resistência a Medicamentos
/
Ixodidae
/
Acaricidas
Limite:
Animals
País como assunto:
Mexico
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article