| Eco-friendly control of mosquito larvae by Brachytron pratense nymph. | |
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MedLine Citation:
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PMID: 17450955 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The study reported here revealed the biocontrol efficacy of aquatic nymphs of the dragonfly Brachytron pratense against larvae of the mosquito Anopheles subpictus. It was found that during a 24-hour study period, a nymph of B. pratense would consume (mean value of three observations) 66 fourth-instar An. subpictus larvae released in a water bowl containing 3 liters of pond water. The consumption rate was significantly higher (p < .05) during the lights-on phase of the experiment than during the lights-off phase (t = 2.15). Under field conditions, a significant decrease (p < .05) in larval density in dipper samples was observed 15 days after the introduction of dragonfly nymphs (10 individuals) in concrete tanks. The biocontrol potential of the nymphs under field conditions was also indicated by a significant increase (p < .05) in the density of mosquito larvae 15 days after the removal of nymphs. In the control tanks (where no nymphs were introduced), mean larval-mosquito density did not differ significantly throughout the study period (p > .05). |
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Authors:
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S N Chatterjee; A Ghosh; G Chandra |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of environmental health Volume: 69 ISSN: 0022-0892 ISO Abbreviation: J Environ Health Publication Date: 2007 Apr |
Date Detail:
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Created Date: 2007-04-24 Completed Date: 2007-05-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405525 Medline TA: J Environ Health Country: United States |
Other Details:
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Languages: eng Pagination: 44-8 Citation Subset: IM |
Affiliation:
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Department of Zoology, University of Burdwan, Mosquito Research Unit, Rajbati, Bardhaman, West Bengal, India. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Ecosystem* India Larva* Mosquito Control / methods* Nymph Pest Control, Biological / methods* Predatory Behavior |
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