The role of urea in the oviposition behaviour of Japanese encephalitis vectors in rice fields of South India

AUTOR(ES)

Sunish, IP, Rajendran, R, Reuben, R

FONTE

Mem. Inst. Oswaldo Cruz

DATA DE PUBLICAÇÃO

2003-09

RESUMO

The effect of urea on the oviposition behaviour of culicine vectors of Japanese encephalitis was studied in rice fields. Gravid females had a strong preference for oviposition in urea treated areas in rice fields, while no such preference was exhibited in untreated areas. The egg laying declined in the area where urea treated water surface had a mechanical barrier, which allowed volatile fractions to escape, but prevented contact with the water. Urea was shown to act as an oviposition attractant/stimulant for Culex tritaeniorhynchus, but its role was not clear for Cx. vishnui, as the number of egg rafts obtained for the latter species was low.

Documentos Relacionados

• Entomological investigation of Japanese encephalitis outbreak in Malkangiri district of Odisha state, India
• Oviposition Behaviour of Cleruchoides noackae (Hymenoptera: Mymaridae) in the Laboratory
• Influence of breeding site availability on the oviposition behaviour of Aedes aegypti
• Japanese encephalitis: a review of the Indian perspective
• THE PROBLEM OF JUVENILE BEHAVIOUR DISORDERS IN CHRONIC EPIDEMIC ENCEPHALITIS*