[Breeding of a biotype of Myzus persicae sulzer on a synthetic medium. V- Influence of oxalic and gentisic acids on the nutritive value of a synthetic medium].

Studies on the survival, fecundity, and food consumption by M. persicae reared on synthetic diets, have indicated: --gentisic and oxalic acids have a deleterious effect as most important as their dose is high. --succinic acid reduces, at least for the used concentrations, the deleterious effect of the oxalic acid, but not that of the gentisic acid. --gentisic acid is quickly decreasing food consumption. --the deleterious effect of oxalic and gentisic acids is not decreasing with time. The results are discussed in regard with the plant-aphid relations.