Effect of new ethyl and methyl carbamates on Rhipicephalus microplus larvae and adult ticks resistant to conventional ixodicides


Por: Perez-Gonzalez, IE, Prado-Ochoa, MG, Munoz-Guzman, MA, Vazquez-Valadez, VH, Velazquez-Sanchez, AM, Avila-Suarez, BL, Cuenca-Verde, C, Angeles, E, Alba-Hurtado, F

Publicada: 31 ene 2014
Resumen:
The effects of six new synthetic carbamates on fully engorged females of four Rhipicephalus microplus strains (one reference strain susceptible to conventional ixodicides, two strains multiresistant to ixodicides and one tick field isolate) were compared. In addition, the effect of two other new synthetic carbamates was tested on larvae from the same strains. The first six tested carbamates reduced egg laying and inhibited egg hatching in the four studied strains (P<0.05). Compared with untreated females, the eggs produced by the treated engorged female ticks of all strains had a dark, dry, opaque appearance and were less adherent. The remaining two tested carbamates induced larval mortality in all of the evaluated strains. The three studied R. microplus strains displayed 50% resistance ratios (RR50) of less than 2 when compared to the susceptible reference strain. These results demonstrate that both carbamates with a larvicidal effect and carbamates that inhibit egg laying and embryo development are efficacious against tick strains that are resistant to commercial ixodicides, no cross resistance was observed. © 2013 Elsevier B.V.

Filiaciones:
Perez-Gonzalez, IE:
 Univ Nacl Autonoma Mexico, Programa Maestria & Doctorado Ciencias Prod & Sal, Mexico City 04510, DF, Mexico

Prado-Ochoa, MG:
 Univ Nacl Autonoma Mexico, Programa Maestria & Doctorado Ciencias Prod & Sal, Mexico City 04510, DF, Mexico

Munoz-Guzman, MA:
 Univ Nacl Autonoma Mexico, Dept Ciencias Biol, Fac Estudios Super Cuautitlan, Mexico City 04510, DF, Mexico

Vazquez-Valadez, VH:
 Univ Nacl Autonoma Mexico, Fac Estudios Super Cuautitlan, Dept Ciencias Quim, Lab Quim Med, Mexico City 04510, DF, Mexico

Velazquez-Sanchez, AM:
 Univ Nacl Autonoma Mexico, Fac Estudios Super Cuautitlan, Dept Ciencias Quim, Lab Quim Med, Mexico City 04510, DF, Mexico

Avila-Suarez, BL:
 Univ Nacl Autonoma Mexico, Fac Estudios Super Cuautitlan, Dept Ciencias Quim, Lab Quim Med, Mexico City 04510, DF, Mexico

Cuenca-Verde, C:
 Univ Nacl Autonoma Mexico, Dept Ciencias Biol, Fac Estudios Super Cuautitlan, Mexico City 04510, DF, Mexico

Angeles, E:
 Univ Nacl Autonoma Mexico, Fac Estudios Super Cuautitlan, Dept Ciencias Quim, Lab Quim Med, Mexico City 04510, DF, Mexico

Alba-Hurtado, F:
 Univ Nacl Autonoma Mexico, Dept Ciencias Biol, Fac Estudios Super Cuautitlan, Mexico City 04510, DF, Mexico
ISSN: 03044017
Editorial
Elsevier, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, Países Bajos
Tipo de documento: Article
Volumen: 199 Número: 3-4
Páginas: 235-241
WOS Id: 000330493300016
ID de PubMed: 24315692