Abstract
The Peach fruit fly (PFF), Bactrocera zonata (Saunders) is known as a key pest of fruits in Egypt. The effect of temperature on the development and survival of the Peach fruit fly (PFF), Bactrocera zonata (Saunders) (Diptera: Tephritidae) from egg to adult was studied to understand the geographical pattern of occurrence of these fruit fly[N1] . Studding carried out in laboratory under four different constant temperatures: 15, 20, 25 and 30°C. Results showed that time required for development were decreased as the temperature increased from 15 to 30°C. Differences between the four tested temperatures in incubation periods were significant. Developmental time of the eggs signii¬cantly decreased over the range of 15 to 25°C but not between 25 and 30°C, Similarly, developmental time for the larva and pupa significantly decreased with increasing temperature from 15 to 30°C. The lower threshold of development (to) for the larval and pupae stages was 13 and 10.9°C respectively. The highest pupation rate of B. zonata was 87±.48 percentage at 25°C, which was considered the optimum and favorable temperature. The results will be good tool for predicting the fly’s population dynamics, which would help develop the fly management strategies. Key words: Bactrocera zonata, Egypt, fruit fly, immature stages, management strategies.
Highlights
The Peach fruit fly (PFF), Bac tr oc er a zo n at a (Saunders) is known as a most serious pest of tropical and subtropical fruits, and considered as important fruit fly pest (Fletcher 1987)
The effect of temperature on the development and survival of the Peach fruit fly (PFF), B a ct ro c er a z onat a (Saunders) (Diptera: Tephritidae) from egg to adult was studied to understand the geographical pattern of occurrence of these fruit fly
In 1924, B. zonata was first declared as present in Egypt based on detection in an imported consignment in Port Said, 1912 (Efflatoun, 1924)
Summary
The Peach fruit fly (PFF), Bac tr oc er a zo n at a (Saunders) is known as a most serious pest of tropical and subtropical fruits, and considered as important fruit fly pest (Fletcher 1987). In 1924, B. zonata was first declared as present in Egypt based on detection in an imported consignment in Port Said, 1912 (Efflatoun, 1924). B. zonata is a highly polyphagous specie that attacks more than 50 host plants including guava, mango, peach, apricots, figs, date and citrus (White and Elson-Harris, 1992).
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