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. 2004 Dec;20(4):456-7.

The use of andiroba Carapa guianensis as larvicide against Aedes albopictus

Onilda S Silva  1 , Pedro R T Romão, Rene D Blazius, Josiane S Prohiro
Affiliations
  • PMID: 15669392

The use of andiroba Carapa guianensis as larvicide against Aedes albopictus

Onilda S Silva et al. J Am Mosq Control Assoc. 2004 Dec.

Abstract

Andiroba Carapa guianensis Aubl. Meliacea is known to possess repellent activity against many mosquito species. We evaluated the larvicidal effect of dry-scratched seed kernels of andiroba against a sylvatic F1 progeny and a laboratory-colonized population of Aedes albopictus (Skuse). The 3rd instar of F1 treated with 0.5 to 2% of C. guianensis for 24 and 48 hours, had mortality with LC50 of 0.74 (0.56-0.90%) and 0.68 (0.53-0.84%), respectively, and the 4th instar 0.66 (0.52-0.80%) and 0.55 (0.20-0.91%), respectively. For the 3rd instars of laboratory-colonized larvae, the treatment with 0.5 to 4% of C. guianensis induced mortality after 24 hours with LC50 of 1.81 (1.39-2.22%), and an LC50 of 1.82 (1.57-2.07%) to the 4th instar. This is the 1st report of the larvicidal effect of C. guianensis on mosquitoes.

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