The chemical control of vectors of leishmaniasis

Filho, A. M. Oliveira; Melo, Marli T. V.

doi:10.1590/s0074-02761994000300031

Cited by 6 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the dose that we used was very close to that which gave the best results in the laboratory susceptibility bioassays (Mazzarri et al. 1997), which generally is a lower dose than recommended for field trials (Oliveira Filho & Melo 1994). Therefore, increasing moderately the dose and diminishing the period of indoor spraying to 4 months (three interventions per year) might keep the L. longipalpis s.l.…”

Section: Discussionmentioning

confidence: 82%

Control trial of Lutzomyia longipalpis s.l. in the Island of Margarita, Venezuela

Feliciangeli

Mazzarri²,

Blas

et al. 2003

Tropical Med Int Health

View full text Add to dashboard Cite

The incidence of the American visceral leishmaniasis (AVL) in the Island of Margarita, a major tourist centre in Venezuela, has been increasing between 1998 and 2001. Lutzomyia longipalpis s.l. is the recognized vector, which was found naturally infected with Leishmania spp, indistinguishable from the parasites recovered from dogs and children. In 1999-2000, we conducted a control trial in Santa Ana del Valle and Las Cabreras, which have similar epidemiological and ecological conditions. The trial was based on intradomestic residual spraying of lambda-cyhalothrin, E.C., 25 mg/m2 and spatial fogging of fenitrothion around the houses at 30 g/ha. Sandfly abundance was recorded using Centers for Disease Control (CDC) traps indoors and outdoors. We found significantly reduced sandfly populations in the target locality. Wall bioassays showed that the residual effect of the insecticide lasts for about 3 months. We believe that indoor spraying with lambda-cyhalothrin three times a year, at a dose slightly greater than 25 mg/m2, might reduce the L. longipalpis s.l. population to a level low enough for achieving a significant reduction of the indoor transmission, thus protecting small children from the disease.

show abstract

Section: Discussionmentioning

confidence: 82%

Control trial of Lutzomyia longipalpis s.l. in the Island of Margarita, Venezuela

Feliciangeli

Mazzarri²,

Blas

et al. 2003

Tropical Med Int Health

View full text Add to dashboard Cite

show abstract

“…(1988) found that only 10 mg a.i./m 2 was enough to kill 100% of females exposed to treated filter papers in WHO bioassay kits. Oliveira Filho & Melo (1994) evaluated insecticides of several groups against Lu. longipalpis in the laboratory, using the same kits.…”

Section: Susceptibility Of Sandflies To Insecticides Based On Laboratmentioning

confidence: 99%

Control of phlebotomine sandflies

Alexander¹,

Maroli

2003

Medical Vet Entomology

263

219

View full text Add to dashboard Cite

Abstract. Phlebotomine sandflies (Diptera: Psychodidae) transmit many zoonotic diseases (arboviruses, bartonelloses and especially leishmaniases) of importance to human health in at least 80 countries. Measures used to control adult sandflies (Lutzomyia and Phlebotomus) include the use of insecticides (mostly pyrethroids) for residual spraying of dwellings and animal shelters, space-spraying, insecticidetreated nets, impregnated dog-collars and personal protection through application of repellents/insecticides to skin or fabrics. Because the breeding-sites of sandflies are generally unknown, control measures that act specifically against immatures are not feasible, although the effectiveness of a few biological and chemical agents has been demonstrated in laboratory evaluations. Reports of insecticide-resistance refer to only three sandfly species (P. papatasi, P. argentipes and S. shorttii) against DDT in one country (India), although there are reports of DDT-tolerance in several countries. Current knowledge of sandfly susceptibility to various insecticides is summarized. Constraints and advantages of different compounds, formulations and delivery methods for sandfly control under different environmental conditions are discussed.

show abstract

“…Essa "franja" se apresenta como um espaço altamente modificado pela população que para ali se dirige e passa a conviver com um conjunto de fatores que condicionam o estabelecimento do calazar nestas áreas. Para Oliveira Filho e Melo, 24 tal situação caracteriza um processo de ruralização de áreas periurbanas endêmicas nas grandes cidades.…”

Section: Considerações Finaisunclassified