Duration of larval and pupal development stages of Aedes albopictus in natural and artificial containers.

Almério De Castro Gomes,Cristiano C De Azevedo Marques,Gisela Rita A.M Marques,Sabina Lea Davidson Gotlieb,Marcia Bicudo De Paula

doi:10.1590/s0034-89101995000100004

Almério De Castro Gomes, Cristiano C De Azevedo Marques + Show 3 more

Open Access

https://doi.org/10.1590/s0034-89101995000100004

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Abstract

Aedes albopictus were reared in different containers: a tree hole, a bamboo stump and an auto tire. The total times from egg hatching to adult emergence were of 19.6, 27.3 and 37.5 days, respectively, according to the container. The first, second and third-instar larvae presented growth periods with highly similar durations. The fourth-instar larvae was longer than the others stages. The pupation time was longer than the fourth-instar larvae growth period. The temperature of the breeding sites studied, which was of 18 degrees C to 22 degrees C on average, was also taken into consideration. The mortality of the immature stages was analysed and compared as between the experimental groups; it was lower in the natural containers than in the discarded tire. The average wing length of adult females emerging from tree hole was significantly larger (p < 0.05) than that of those emerging from the tire.

Highlights

Aedes albopictus were reared in different containers: a tree hole, a bamboo stump and an auto tire
In Tremembé County, during the first project, the larval habitat of this species presented different types and sizes, but few larvae were caught either in natural or artificial containers (Gomes et al.4, 1992); exception has to be made of tree holes whose volumes exceeded 200ml
It is unknown whether this result was due to the fact that less oviposition occurred or to a very high rate of mortality. Artificial containers such as discarded tires and bamboo stumps are regarded as habitats ofAe. albopictus.To estimate how longAe. albopictus larvae live, the container types, temperature and food supply must be taken into consideration

Summary

Introduction

Aedes albopictus were reared in different containers: a tree hole, a bamboo stump and an auto tire. In Tremembé County, during the first project, the larval habitat of this species presented different types and sizes, but few larvae were caught either in natural or artificial containers (Gomes et al.4, 1992); exception has to be made of tree holes whose volumes exceeded 200ml.

Results

Conclusion