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Front Microbiol. 2015 Feb 16;6:88. doi: 10.3389/fmicb.2015.00088. eCollection 2015.

Rhamnolipids: solution against Aedes aegypti?.

Frontiers in microbiology

Vinicius L Silva, Roberta B Lovaglio, Claudio J Von Zuben, Jonas Contiero

Affiliations

  1. Biochemistry and Microbiology, Universidade Estadual Paulista Júlio de Mesquita Filho Rio Claro, Brazil.
  2. Zoology and Entomology, Universidade Estadual Paulista Júlio de Mesquita Filho Rio Claro, Brazil.

PMID: 25762986 PMCID: PMC4329818 DOI: 10.3389/fmicb.2015.00088

Abstract

Aedes aegypti mosquitoes are the primary transmitters of dengue fever, urban yellow fever, and chikungunya viruses. This mosquito has developed resistance to the insecticides currently used to control their populations. These chemical insecticides are harmful to the environment and can have negative effects on human health. Rhamnolipids are environmentally compatible biological surfactants, but their insecticidal activity has not been extensively studied. The present study evaluated the potential larvicidal, insecticidal, and repellent activities of rhamnolipids against A. aegypti. At concentrations of 800, 900, and 1000 mg/L, rhamnolipids eliminated all mosquito larvae in 18 h and killed 100% of adults at 1000 mg/L. According to the results it may be conclude that rhamnolipids should be applied to control larvae and mosquitos besides present the repellency activity against A. aegypti.

Keywords: Pseudomonas aeruginosa; biosurfactant; entomology; repellent; tropical diseases

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