Document Detail


Prospects and problems of intermittent irrigation for control of vector breeding in rice fields in southern India.
MedLine Citation:
PMID:  7495368     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
R Rajendran; R Reuben; S Purushothaman; R Veerapatran
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Annals of tropical medicine and parasitology     Volume:  89     ISSN:  0003-4983     ISO Abbreviation:  Ann Trop Med Parasitol     Publication Date:  1995 Oct 
Date Detail:
Created Date:  1996-01-11     Completed Date:  1996-01-11     Revised Date:  2009-05-18    
Medline Journal Info:
Nlm Unique ID:  2985178R     Medline TA:  Ann Trop Med Parasitol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  541-9     Citation Subset:  IM    
Affiliation:
Centre for Research in Medical Entomology, Madurai, India.
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MeSH Terms
Descriptor/Qualifier:
Agriculture*
Animals
India
Insect Vectors
Mosquito Control*
Oryza sativa
Reproduction
Seasons
Water
Chemical
Reg. No./Substance:
7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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