In vitro efficacy of four insecticides against eggs of Tunga penetrans (Siphonaptera)

Kiesewetter, Tim, Ariza, Liana, Martins, Maria M., Limongi, Jean E., Junqueira da Silva, Juliana, Mendes, Júlio, Lins Calheiros, Cláudia M., Becher, Heiko, and Heukelbach, Jorg (2013) In vitro efficacy of four insecticides against eggs of Tunga penetrans (Siphonaptera). Open Dermatology Journal, 7. pp. 15-18.

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Systematic assessments of control measures against the jigger flea Tunga penetrans are scarce, and there are no published data available on the efficacy of environmental insecticides against immature stages. We tested four environmental contact insecticides used by Brazilian authorities for disease control (deltamethrin, bifenthrin, dichlorvos and etofenprox) against T. penetrans eggs. Eggs were reared in vitro. Hatch rates were observed under standardized conditions and compared to a control group (40 eggs in each group). No larvae hatched after treatment with the organophosphate dichlorvos (100% efficacy). The efficacies of the other products tested varied between 17% and 57%. The data show that the organophosphate dichlorvos had a good in vitro efficacy. The use of dichlorvos can be directed to typical spots where early stages of T. penetrans are expected, considering its toxicity. Disease control should also consist of prevention measures concerning housing and environmental conditions, veterinary and human health measures.

Item ID: 32033
Item Type: Article (Scholarly Work)
ISSN: 1874-3722
Keywords: chigoe flea, efficacy, insecticides, prevention, Tunga penetrans
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© Kiesewetter et al.; Licensee Bentham Open. This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

Funders: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Projects and Grants: CNPq Projeto Universal
Date Deposited: 24 Apr 2014 04:23
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920499 Public Health (excl. Specific Population Health) not elsewhere classified @ 100%
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