Influência da composição da dieta larval e da radiação x na qualidade de Ceratitis capitata Wiedemann, 1824 (Diptera: tephritidae) produzida em criação massal

Abstract

In a successfully Sterile Insect Technique (SIT) program for eradication or population suppression of medfly, Ceratitis capitata, it is necessary to release sterile males of high quality. All the process evolved to rear insects massively, as well as the method of sterilization can significantly affect their quality. The present study aimed to evaluate larval diets with different protein source on the quality of C. capitata, tsl Vienna 8 strain, as well doses of X-ray [0 (control), 80, 95, 115 and 125 Gy] to treat pupae, for sterilization of adult males in the Biofábrica Moscamed Brazil (BMB) mass rearing. The parameters evaluated were the yield egg-pupa, pupa weight, proportion of white and brown pupae, emergence and flyers, fecundity and fertility of females, male’s sterility and survival under stress. The amounts of different protein sources in diets offered during the larval stage did not affect the quality of parameters evaluated. Except egg-pupa yield and the proportion of white pupae were higher for diets with soybean or only yeast protein sources (diets 4 and 3). Males irradiated with 115 Gy (X-ray) induced a high level of sterility in female’s C. capitata, and did not affect the quality of the insects. Both, larval diet and a dose of 115 Gy (X-ray) might be used as the standard for mass rearing and male sterilization for tsl - Vienna 8 strain.