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- 저자 : Enakshi Ghosh (검색결과 1 건)
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Enakshi Ghosh,Chandish R. Ballal 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.3
In Asia Corcyra cephalonica (Stainton) (Lepidoptera: Pyralidae) is widely used as a factitious host for the mass rearing of several bio-control agents viz. chrysopids, braconids, trichogrammatids and anthocorids. The age dependent cold storage amenability of C. cephalonica eggs was evaluated. At 5 ± 1 °C with a 24 h of scotophase, 0 to 22 h old eggs of C. cephalonica could be stored for up to 5 days resulting in 83 to 94% hatching. Eggs of C. cephalonica are UV irradiated for mass rearing of T. chilonis. Four, eight, sixteen and twenty four-hour-old C. cephalonica eggs were stored at 5 ± 1 °C for different durations prior to and post-UV irradiation and tested for their amenability to parasitism by T. chilonis. Adult females of T. chilonis could parasitise 67–78% of eggs stored for up to 10 days prior to UV treatment, while 74–78.2% parasitism was recorded in the case of eggs stored for 10 days post-UV. The host eggs of all age groups stored for 20 days (10 days pre-UV and 10 days post-UV) were effectively parasitised providing 83.8–88.4% parasitism. Eight and sixteen hour-old old host eggs stored for 30 days (15 days of pre-UV and 15 days of post-UV) recorded 70–80% parasitism. The host egg storage technique developed through this study would be beneficial for insectaries to stock the host eggs, which can lead to uninterrupted production and supply of ‘Tricho-cards’, especially during seasonal high demand.
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