PJB-2023-547
HOST PREFERENCE OF FRUIT FLY SPECIES AND THEIR ASSOCIATED PARASITOIDS POTENTIAL IN FRUITS AND VEGETABLES
Sharif Ahmad
Abstract
The current research studies were carried out to investigate the host preference of fruit fly species and their associated parasitoid in fruits and vegetables under laboratory conditions at Agricultural Research Institute (ARI), Mingora, Swat, Khyber Pakhtunkhwa during 2022. The research was focused on host preference of B. cucurbitae on vegetable host, viz; cucumber, brinjal, zucchini, bitter guard, bottle guard and B. zonata on fruit host, viz; pear, red persimmon, apple, pomegranate, guava both Bectrocera species adults were reared individually on vegetables and fruits at Randomized Design (CRD) with four replications. The results indicated that in vegetables zucchini was found as the most preferred host as compared to the other hosts in terms of most numbers of male and female B. cucurbitae adults (67.50 and 67.00), followed by bottle gourd (29.25 and 29.50)adults while minimum number of male and female adults in brinjal (4.75 and 3.75). Maximum numbers of male and female B. zonata adults in apple (38.0 and 36.50), followed by pear adults (12.75 and 13.75) while minimum in guava (11.75 and 10.25) adults. Maximum values for larvae density area-1 in B. cucurbitae zucchini (290.75) followed by bottle gourd (124.25) cucumber (55.50), while minimum larval density area-1brinjal (15.50). In B. zonata maximum values for larval density area-1 in apple (174.75) followed by pear (56.0) while minimum larval density area-1in guava (45.50). In B. cucurbitae maximum number of pupae formation in zucchini (148.50) followed by cucumber (33.75) while minimum pupae formation in brinjal (12.25) same as in B. zonata maximum pupae formation in apple (93.00) followed by pear (31.75) minimum pupae formation in guava (26.25) maximum pupae weight of bottle gourd (17.98mg) followed by cucumber (14.87mg) minimum pupae weight of bitter gourd (13.75mg) maximum pupae weight of apple (6.03mg) followed by guava (5.43mg) minimum pupae weight of pear (4.55mg). Maximum percent adult emergence of B. cucurbitae in zucchini (90.95%) followed by bottle gourd (83.85%) minimum in brinjal (68.95%). Maximum percent adult emergence of B. zonata pear (83.35%) followed by guava (82.75%) minimum in apple (80.45%). The results further showed the maximum percent parasitism of Dirhinus giffardii in B. zonata on peach (35.16%) while minimum in B. cucurbitae on zucchini (20.83%). Maximum percent parasitism of Diachamimorpha longicaudata in B. zonata on peach (43.03%) while no percent parasitism of Diachamimorpha longicaudata in B. cucurbitae on zucchini. It was concluded that the B. cucurbitae and B. zonata preferred zucchini and apple host for infestation and also D. giffardii parasitoid reported maximum parasitism of B. cucurbitae and B. zonata reared on zucchini and peach.
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