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Studies on water movement and dispersion of mosquito larvae, with special reference to control in rice fields

Published online by Cambridge University Press:  10 July 2009

Gordon Surtees
Affiliation:
Arbovirus Epidemiology Unit, Microbiological Research Establishment, Porton Down, Salisbury, Wiltshire, England

Extract

The effect of water currents on the dispersion of the larvae of Aedes aegypti (L.) and Anopheles stephensi List, were examined in the laboratory. The larvae represent two distinct respiratory positions, and on the basis of their amount of movement were termed active and inactive, respectively. While active larvae resist water currents, and tend to disperse evenly in a field system, inactive larvae tend to be washed away but also to accumulate in loci of minimal water movement. These findings could be applied to detection of larval populations, control by irrigation and spot chemical treatments in rice fields.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1970

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