Abstract
Fruit flies are polyphagous insect pests, infesting various fruits and vegetables. The host preference and biology of guava fruit fly Bactrocera correcta (Bezzi) were studied on 17 hosts. Biological parameters such as incubation period, maggot and pupal period, maggot and pupal weight, pupal recovery, adult emergence, total fecundity and adult longevity were studied. All biological parameters were significantly influenced by the host fruits. The results showed that the total developmental period was longer on pomegranate (26.7± 2.1 days), ber (26.1± 2.4 days) and custard apple (25.1± 1.5 days); while shorter period was observed on sweet banana (20.1± 1.6 days). Pupal recovery was maximum on sweet banana (93.33%) and lowest on mango (Totapuri) (42%). The adult emergence was also more on sweet banana (90%) and survived for longer period. Sweet banana was preferred for oviposition followed by guava, papaya, and sapota.
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