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Evaluation of a spray of permethrin and pyriproxyfen for the protection of dogs against Phlebotomus perniciosus
Author(s) -
Molina R.,
Miró G.,
Gálvez R.,
Nieto J.,
Descalzo M. A.
Publication year - 2006
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.159.7.206
Subject(s) - sandfly , permethrin , pyriproxyfen , leishmaniasis , phlebotomus , veterinary medicine , visceral leishmaniasis , leishmania infantum , vector (molecular biology) , biology , psychodidae , leishmania , toxicology , medicine , immunology , parasite hosting , pesticide , ecology , biochemistry , world wide web , computer science , gene , recombinant dna
Dogs are the main domestic reservoir of Leishmania infantum in the Old World ( Leishmania chagasi in the New World) a parasite responsible for many cases of human visceral leishmaniasis in both endemic and non‐endemic regions. One strategy for the control of leishmaniasis would be to prevent dogs from being bitten by sandflies, the vector of leishmaniasis. This study was designed to assess the efficacy of spraying a combination of permethrin and pyriproxyfen on to dogs artificially exposed to sandflies. Two groups of four male dogs, one of them treated and the other left untreated as controls, were exposed for one hour to 100 female sandflies seven days before the treatment, on the day of treatment and seven, 14, 21, and 28 days later. After each exposure, sandflies were collected, counted and scored. The prevention of sandfly bite was calculated by measuring the number of fed sandflies (dead and alive) after treatment. In this experimental assay, the repellent effect of the treatment against sandfly bites after 21 days was 71·4 per cent, but the insecticidal effect was only 7·2 per cent.