Contribution to the effect of temperature on some biological aspects of the peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae) reared on artificial diet [electronic resource].

Includes reference.

The Peach Fruit Fly (PDF) Baclrocera zanala (Saunders) (Diptera: Tephritidae) was reared on artificial diet to study the effect of three constant temperatures (20, 25, and 30°C) on certain biological aspects. The oviposition period, incubation period, larval duration, pupal duration, and duration of generation were estimated. The time required for development was decreased as the temperature increased from 20 to 30°C. Fecundity and daily oviposition rate were significantly higher at 25°C than other temperatures. Differences between the 3 tested temperatures in oviposition periods; incubation periods and adult longevity were significant. Low mortality of larvae and pupae occurred at 30°C. Larvae reared at 30 °C pupated in significantly shorter time than those developed under other temperatures. Pupation periods differed significantly at all temperatures. Individuals reared at 30 °C completed their life cycles in significantly shorter period. 25°C was the most preferable temperature for the pest. The threshold temperatures were 11.83 °C for egg, 12.13 °C for larvae, 12.67 °C for pupae 11.67 °C for pre-oviposition period and 11.84 °C for generation. The average thennal requirements needed for completing the development were 28.02, 91.75, 141.21, 232.37 and 487.92 day-degrees for egg, larvae, pupae, preoviposition period and generation, respectively.

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