Abstract:

The fruit fly, Bactrocera (Bactrocera) philippinensis (Drew & Hancock), is an important quarantine pest. It has been reported to damage many fruits seriously, such as mango Mangifera indica L., papaya Carica papaya L. and jackfruit Artocarpus heterophyllus Lam. The bionomics of the fruit fly was systematically observed and studied in the laboratory. The results showed that their emergence percentage was 93.93% during 6-18 h. Their adult activity, longevity, mating and oviposition were related significantly to temperature and light. The adult longevity was prolonged by supplementary nutrition. The suitable temperature of their development and fecundity was 25℃-30℃. The fruit fly laid 627.35 and 652.57 eggs on average at 25℃ and 30℃, respectively. The thermal threshold temperature and the effective accumulated temperature for the development were 14.31℃ and 450.43 day-degree, respectively. The developmental duration was correlated negatively with temperature (r=-0.9005). This study provided the important basic information for the technique of quarantine treatment and field control of the fruit fly.