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[Evaluation of sandfly control measures].

Kárin Rosi Reinhold-Castro1, Regiane Bertin de Lima Scodro, Alessandra de Cassia Dias-Sversutti

  • 1Universidade Estadual de Maringá, Maringá, PR, Brazil. karindecastro@yahoo.com.br

Revista Da Sociedade Brasileira De Medicina Tropical
|August 23, 2008
PubMed
Summary

Sandfly density decreased significantly in Doutor Camargo, Paraná, following control measures. Collections showed fewer insects, particularly within homes, indicating successful population reduction strategies.

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Area of Science:

  • Medical Entomology
  • Vector Control
  • Public Health

Background:

  • Sandflies are vectors for diseases like leishmaniasis.
  • Insecticide resistance and environmental changes impact sandfly populations.
  • Effective vector control strategies are crucial for disease prevention.

Purpose of the Study:

  • To evaluate the effectiveness of implemented control measures on sandfly density.
  • To compare sandfly populations before and after intervention in Recanto Marista, Paraná.
  • To identify dominant sandfly species and their preferred ecotopes.

Main Methods:

  • Sandfly collections using Falcão traps from May 2005 to April 2006.
  • Comparison with data from April 2001 to September 2002.
  • Sampling conducted inside homes and hen sheds, weekly, 4 times/month, 10 PM-2 AM.

Main Results:

  • A decrease in sandfly density was observed between 2001-2002 (1,653.5/hour) and 2005-2006 (1,113.8/hour).
  • Nyssomyia neivai predominated (75.4%), followed by N. whitmani, M. migonei, and P. fischeri (99.7% combined).
  • Hen coops were the primary ecotope (88.7%), but density reduction was most notable in homes.

Conclusions:

  • Implemented control measures were effective in reducing overall sandfly density.
  • Nyssomyia neivai remains the dominant species, highlighting the need for targeted control.
  • Further monitoring is recommended to sustain reduced sandfly populations and prevent disease transmission.