Efeito de dietas à base de amendoim e soja sobre a mosca-das-frutas (Ceratitis capitata) (Wied., 1824) (Diptera: Tephritidae)

Abstract

The Mediterranean fruit fly (Ceratitis capitata) is a pest of economic importance, and its mass rearing requires efficient and low-cost artificial diets. This study evaluated the effect of diets with alternative protein sources (peanut and soy extract) on the larval and immature stage viability of C. capitata, compared to the control diet with brewer's yeast. The experiment was conducted at the Phytosanitary Clinic of CCHSA-UFPB, Bananeiras-PB, in a completely randomized design with three treatments and four replications. Fifty larvae were inoculated in 20 g of diet per replication, with evaluations after 12 days (pupal formation) and 20 days (adult emergence). Non-parametric statistical analysis (Kruskal-Wallis) revealed significant differences (p<0.05) in larval viability (T1: 53.5% ± 28.5; T2: 0% ± 0; T3: 19% ± 14.8) and pupal viability (T1: 81.5% ± 11.3; T2: 0% ± 0; T3: 67.1% ± 39.3). The peanut diet resulted in 100% larval mortality, while soy showed intermediate viability. The results indicate that soy extract may be a partial alternative to yeast, but peanut is unsuitable, possibly due to antinutritional factors.