تأثير درجات الحرارة العالية المُحفَّزة معمليا على معدلات خروج الحشرات البالغة لذبابة فاكهة الخوخ
DOI:
https://doi.org/10.61952/jlabw.v1i3.223الكلمات المفتاحية:
Bactrocera zonata, peach fruit fly, pupal development, temperature stress, heat treatment, non-chemical control, thermal pest management, Alexandria Universityالملخص
The peach fruit fly (Bactrocera zonata) is a highly destructive insect pest that infests a wide range of fruit crops, causing economic losses of up to 95%. This study aimed to evaluate the impact of elevated temperatures (25°C, 32°C, and 40°C) on adult emergence rates from the pupal stage and to assess the potential of heat as a non-chemical physical method for pest control. The experiment was conducted over one week at the Insect Breeding Unit, Faculty of Agriculture, Alexandria University. For each temperature treatment, three replicates were prepared, each containing 20 pupae placed in 9 cm Petri dishes. Dishes were maintained under controlled environmental conditions and monitored daily for adult emergence. Results showed that the highest emergence rate (90%) occurred at 25°C, while emergence declined to 52% at 32°C and dropped sharply to 13% at 40°C. These findings suggest that elevated temperatures adversely affect pupal development and adult emergence, thus supporting the potential use of heat as an environmentally friendly alternative to chemical control strategies against B. zonata.
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