| Prospects and problems of intermittent irrigation for control of vector breeding in rice fields in southern India. | |
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MedLine Citation:
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PMID: 7495368 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The impact of water management on the abundance and interaction of aquatic stages of mosquitoes and some important groups of their predators was studied in a 22.3-ha plot of rice in southern India. Many pools persisted even in a year when intermittent irrigation (II) was properly implemented (fields being re-irrigated as soon as they were dry) and these acted as microrefuges for the immature stages of mosquitoes and for their predators. Although the abundance of all predators, particularly of Notonectidae, was reduced by II in this year, increased predation efficiency in the confined spaces of the persistent pools resulted in a 75%-88% reduction in the abundance of mosquito pupae, as measured by two independent sampling methods. In another year there was insufficient irrigation water for proper II and re-irrigation took place whenever water was available rather than when it was required, frequently resulting in only partial drying. This reduced predator populations without enhancing their efficiency, and so mosquito abundance was slightly higher than in conventionally irrigated fields. The implications for vector control are discussed. |
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Authors:
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R Rajendran; R Reuben; S Purushothaman; R Veerapatran |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Annals of tropical medicine and parasitology Volume: 89 ISSN: 0003-4983 ISO Abbreviation: Ann Trop Med Parasitol Publication Date: 1995 Oct |
Date Detail:
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Created Date: 1996-01-11 Completed Date: 1996-01-11 Revised Date: 2009-05-18 |
Medline Journal Info:
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Nlm Unique ID: 2985178R Medline TA: Ann Trop Med Parasitol Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 541-9 Citation Subset: IM |
Affiliation:
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Centre for Research in Medical Entomology, Madurai, India. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Agriculture* Animals India Insect Vectors Mosquito Control* Oryza sativa Reproduction Seasons Water |
| Chemical | |
Reg. No./Substance:
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7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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