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| Effect of Various Hosts on The Biology of Trichogramma Chilonis (Hymenoptera: Trichogamatidae) Under Lab Conditions. |
Farman Ali, Habib Ahmed Khosa, Muhammad Sharif, Abdul Jabbar, Shah Muhammad Khosa,Sadam Hussain
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Abstract:
: The present studies on the effect of various hosts on the biology of Aganaspis daci previously known as Trichogramma chilonis (Hyenoptera:trichogrammatidae)now known as Eucoilidae) were carried out in the fruitfly and their parasitoids lab, Plant Protection Division, Nuclear Institute of Agriculture (NIA), Tandojam. Four various kinds of hosts namely, Bactrocera zonata, Bactrocera dorsalis, and Bactrocera cucurbitae and Carpomya vesuviana were used in the experiment. Data on number of un-emerged, parasitized pupae, sex ratio and longevity of the parasitoid were recorded.
The various parameters of T.chiloniswere significant (P<0.05) affected by the provision of various hosts. However, maximum mean parasitization was recorded when T.chiloniswere offered with the larvae of B. zonata (11.40±0.96) and minimum in C. vesuviana (4.60±0.96). Moreover, maximum mean emergence was observed when T.chiloniswere offered with the larvae of B. zonata (8.90±0.87) and minimum in C.vesuviana (3.30±0.94). Moreover, maximum male emergence were recorded when T.chiloniswere offered with the larvae of B. zonata (3.70±0.50) and lowest in C. vesuviana (1.00±0.21). Similarly maximum mean female emergence was recorded, when adults T.chiloniswere offered with larvae of B. zonata (5.20±1.45) and maximum in larvae of C. vesuviana (2.00±0.87). Our results established that B. zonata is preferred host of T.chilonisin term of preference, parasitization, emergence and longevity. These results could be exploited for the mass rearing and management of B. zonata in variety of orchard agro-ecosystem.
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