Odonata nymphs as potential biocontrol agent of mosquito larvae in Malaysia

Ramlee, Saleeza and Norma-Rashid, Yusoff and Mohd Sofian, Azirun (2022) Odonata nymphs as potential biocontrol agent of mosquito larvae in Malaysia. Southeast Asian Journal of Tropical Medicine and Public Health, 53 (4). pp. 426-435. ISSN 0125-1562, DOI https://doi.org/10.1025/kore.487-454.

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Biocontrol has been proposed as an effective approach in controlling mosquito population. In this study, three Odonata (dragonfly) nymphs (Neurothemis fluctuans, Orthetrum chrysis and O. sabina) were investigated for their feasibility as biocontrol agents against dengue virus vectors Aedes aegypti, Ae. albopictus and Culex quinquefasciatus. Each Odonata nymph species was separately fed each of the mosquito species IV instar larvae maintained at a fixed level by replenishing every three hours for 24 hours under controlled laboratory conditions and 12-hour light-dark period. N. fluctuans and O. sabina nymphs preferred Ae. aegypti as their prey, while O. chrysis favored Cx. quinquefasciatus. Amount of larval consumption is significantly higher during light compared to dark period (p -value < 0.05). However, overall there are no significant differences in consumption rates of the three dragonfly nymph species for the test mosquito larvae. Thus, Odonata nymphs are potential biocontrol agents against mosquito vectors of dengue disease.

Item Type: Article
Funders: Institute for Medical Research (IMR)
Uncontrolled Keywords: Aedes aegypti; Aedes albopictus; Culex quinquefasciatus; Biocontrol; Mosquito larva; Odonata nymph
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
R Medicine
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Sep 2023 04:26
Last Modified: 22 Sep 2023 04:26
URI: http://eprints.um.edu.my/id/eprint/41430

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