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. 2011 Jan;1(1):43-8.
doi: 10.1016/S2221-1691(11)60066-X.

Ovicidal and repellent activities of botanical extracts against Culex quinquefasciatus, Aedes aegypti and Anopheles stephensi (Diptera: Culicidae)

M Govindarajan  1 , T Mathivanan, K Elumalai, K Krishnappa, A Anandan
Affiliations

Ovicidal and repellent activities of botanical extracts against Culex quinquefasciatus, Aedes aegypti and Anopheles stephensi (Diptera: Culicidae)

M Govindarajan et al. Asian Pac J Trop Biomed. 2011 Jan.

Abstract

Objective: To determine the ovicidal and repellent activities of methanol leaf extract of Ervatamia coronaria (E. coronaria) and Caesalpinia pulcherrima (C. pulcherrima) against Culex quinquefasciatus (Cx. quinquefasciatus), Aedes aegypti (Ae. aegypti) and Anopheles stephensi (An. stephensi).

Methods: The ovicidal activity was determined against three mosquito species at various concentrations ranging from 50-450 ppm under the laboratory conditions. The hatch rates were assessed 48 h after treatment. The repellent efficacy was determined against three mosquito species at three concentrations viz., 1.0, 2.5 and 5.0 mg/cm(2) under the laboratory conditions.

Results: The crude extract of E. coronaria exerted zero hatchability (100% mortality) at 250, 200 and 150 ppm for Cx. quinquefasciatus, Ae. aegypti and An. stephensi, respectively. The crude extract of C. pulcherrima exerted zero hatchability (100% mortality) at 375, 300 and 225 ppm for Cx. quinquefasciatus, Ae. aegypti and An. Stephensi, respectively. The methanol extract of E. coronaria found to be more repellenct than C. pulcherrima extract. A higher concentration of 5.0 mg/cm(2) provided 100% protection up to 150, 180 and 210 min against Cx. quinquefasciatus, Ae. aegypti and An. stephensi, respectively. The results clearly showed that repellent activity was dose dependent.

Conclusions: From the results it can be concluded the crude extracts of E. coronaria and C. pulcherrima are an excellent potential for controlling Cx. quinquefasciatus, Ae. aegypti and An. stephensi mosquitoes.

Keywords: Aedes aegypti; Anopheles stephensi; Caesalpinia pulcherrima; Culex quinquefasciatus; Ervatamia coronaria; Leaf extract; Mortality; Mosquito; Ovicidal activity; Repellent activity.

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Conflict of interest statement

Conflict of interest statement: We declare that we have no conflict of interest.

References

    1. Service MW . Mosquitoes (Culicidae) In: Lane RP, Crosskey RW, editors. Medical insects and arachnids. London: Chapman & Hall; 1993. pp. 723–725.
    1. Macedo ME, Consoli RAGB, Grandi TSM, Anjos AMG, Oliveira AB, Mendes NM, et al. et al. Screening of Asteraceae (Compositae) plant extracts for larvicidal activity against Aedes fluviatilis (Diptera: Culicidae) Mem Inst Oswaldo Cruz. 1997;92:565–570. - PubMed
    1. Govindarajan M. Chemical composition and larvicidal activity of leaf essential oil from Clausena anisata (willd.) Hook. F. Benth (Rutaceae) against three mosquito species. Asian Pac J Trop Med. 2010;3:691–695.
    1. Alkofahi A, Rupprecht JK, Anderson JE, Mclaughlin JL, Mikolajczak KL, Scott BA. Search for new pesticides from higher plants. In: Arnason JT, Philogene BJR, Morand P, editors. Insecticides of plant origin. Washington DC: Oxford University Press; 1989. pp. 25–43.
    1. Dharmshaktu NS, Prabhakaran PK, Menon PK. Labortory study on the mosquito larvicidal properties of leaf and seed extract of plant Agava americana. J Trop Med Hyg. 1987;90:79–82. - PubMed

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