SciELO - Scientific Electronic Library Online

 
vol.85 issue4Histological and ultrastructural studies of the marsupial Didelphis albiventris Peyer's patchesSusceptibility of laboratory-reared female Lutzomyia longipalpis (Lutz & Neiva, 1912) to infection by different species and strains of Leishmania Ross, 1903 author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Memórias do Instituto Oswaldo Cruz

Print version ISSN 0074-0276
On-line version ISSN 1678-8060

Mem. Inst. Oswaldo Cruz vol.85 no.4 Rio de Janeiro Oct./Dec. 1990

http://dx.doi.org/10.1590/S0074-02761990000400009 

Preliminary laboratory and field trials of a heated pheromone trap for the sandfly lutzomyia logipalpis (Diptera: Psychodidae)

Richard D. Ward1  , Ian E. Morton1  , Reginaldo P. Brazil2  , Sheila Trumper1  , Alda L. Falcão3 

Liverpool School of Tropical Medicine, Department of Medical Entomology, Liverpool, Great Britain

Universidade Federal do Rio de Janeiro, Departamento de Parasitologia, Rio de Janeiro, Brasil

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

ABSTRACT

A heated pheromone trap for the sandfly Lutzomyia longipalpis was tested in the laboratory using filter paper or plastic vial dispensers. Male pheromone extracted from 8 male tergal glands and absorbed on to filter paper dispensers attracted 82/120 (68.3%) of virgin females released in cages. Similarly plastic vial dispensers baited with the extract of 24 males caught 73/120 (61%). In field trials carried out near januária, Minas Gerais, Brazil using the plastic dispensers baited with extracts of 50 male tergal glands only 70 female L. longipalpis were captured. Over 1000 male flies were, however, caught during 6 nights, with greater numbers in the unbaited control traps than in the pheromone baited test traps. It is concluded that at excessive concentrations male L. longipalpis pheromone may act as a repellent to conspecific males.

Key words: pheromone trap; sandfly; Lutzomyia longipalpis

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License