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Revista de la Sociedad Entomológica Argentina

Print version ISSN 0373-5680

Abstract

GARCIA, Juliana  and  IANNACONE, José. Viability of eggs and screen cage model for mass artificial rearing of Anastrepha fraterculus (Diptera: Tephritidae). Rev. Soc. Entomol. Argent. [online]. 2011, vol.70, n.3-4, pp. 267-276. ISSN 0373-5680.

The aim of this study was to determine the viability of eggs and cage model suitable for artificial mass rearing of Anastrepha fraterculus (Wiedemann). The results show that the period of maximum oviposition occurs during the first 10 days in Medium cages which allows to obtain the necessary volume of eggs to feed the foot of rearing of A. fraterculus in a mass rearing. Considering that a positive relationship was found between the volume of eggs oviposited and the hatchability percentage in a period of 21 days of collection, this period coincides with the highest values of hatching. Among the evaluated cage models: Medium, Large and Mission, Medium model showed the best results when assessing the number of eggs/female/day with an average of 11.4. The cage that showed lower results was Mission model with an average of 4.6 eggs/female/day. The Large cages showed values lower than the Medium cages but the differences were not significant. Good values recorded in the Medium cages were likely due to their structure, with the inside of the cage divided into several compartments, which improves the distribution of adult flies and prevents early mortality due to the overcrowding of the base or the roof of the cage.

Keywords : Fecundity; Fertility; Fruit fly; Mass-rearing.

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