Parasitoides asociados a mosca de la fruta en especies frutales en la microcuenca del río Magdalena Paute - Ecuador.

Abstract

The fruit flies are pests of the great economic importance for the losses in fruit crops. An inventory of parasitoids associated with fruit flies was made in the micro-basin of River Magdalena (Bulán) and Algarrobo (Paute), during the season of harvest of the species hosts of fruit flies considered in this work, from may, 2015 to march, 2016. A total of weighing 489,54 kg of fruits was collected, 1572 adults of fruit flies were recovered, Anastrepha fraterculus (Wied.), Anastrepha distincta Greene., Anastrepha obliqua (Macquart) y Ceratitis capitata Wied. This study found a parasitoid of the family Braconidae, Doryctobracon crawfordi (Viereck), with an irregular distribution in the area studied. The parasitism rate was low 0,20% (Prunus pérsica L.), 1,88% (Psidium guajava L.) and 2,05 (Annona cherimolia Mill.). The most common specie of fruit flies in the area zone is Anastrepha fraterculus (Wied.) (60,88%) with a widely distribution. The Shannon – Weaver index in the zone was 0,69.