Abstract

Effect of deltamethrin spraying on the sandfly populations in a focus of American cutaneous leismaniasis

Alda Lima Falcão¹

Alberto Rocha Falcão¹

Claudio Teixeira Pinto²

Célia Maria Ferreira Gontijo¹

Aloísio Falqueto³

FIOCRUZ, Centro de Pesquisas René Rachou, Belo Horizonte, Brasil

Quimio Produtos Químicos Comércio e Indústria SA, Rio de Janeiro, Brasil

Universidade Federal do Espírito Santo, Departamento de Medicina Social, Vitória, Brasil

The effect of deltamethrin of the sandfly population in a focus of American Cutaneous Leishmaniasis in Viana, Espírito Santo State is desvribed. The phlebotomine population density was determined inside and outside houses during a one year period in a treated and untreated area. The results showed a significant reduction in the number of sandflies inside houses in the treated area compared with both the untreated area and the same area before sparying. Despite having a residual action for 12 months after spraying the insecticide was ineffective outside houses. It is concluded therefore that deltamethrin is an efficient insecticide for reducing the number of phlebotomine sandflies inside houses.

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