Some Effects of Streptomycin, When Added to the Adult Food, on the Adults of Dacus oleae (Diptera: Tephritidae) and Their Progeny

Author: FYTIZAS E.   TZANAKAKIS M. E.  

Publisher: Entomological Society of America

ISSN: 1938-2901

Source: Annals of the Entomological Society of America, Vol.59, Iss.2, 1966-03, pp. : 269-273

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Abstract

Streptomycin at either 0.25% or 0.05% concentration, in an artificial diet fed to adult Dacus oleae (Gmelin), had no appreciable effect on adult longevity, fecundity, egg hatchability, or duration of embryonic development. When fed to females at either concentration, it definitely inhibited larval growth of their progeny in olive fruits which were picked in October and used either immediately or after only 2–3 weeks storage in closed containers at 4°–5°C. However, no such inhibition of larval development occurred in olive fruits, picked at the same season, which were similarly stored for 2 months or more. This observation suggests that a change (possibly resulting in a greater quantity of free amino acids) occurred in the mesocarp of the fruit during cold storage, making it more assimilable by the progeny of adults that had been fed streptomycin.

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