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VOL. 6, ISSUE 5 (2021)
Diapause intensity of Chinese citrus fly, Bactrocera minax (Enderlein) in Sindhuli, Nepal
Authors
Debraj Adhikari, Resham Bahadur Thapa, Samudra Lal Joshi, Jason Jinping Du, Yubak Dhoj G C
Abstract
Chinese citrus fly, Bactrocera minax (Enderlein) is a serious pest of citrus fruits in Nepal. Understanding the life stages and behavior of this pest is important to plan management strategy. The pupal stage of this pest completes in soil and exhibits overwintering as pupal diapause during the winter season. This study showed that days to adult emergence for the maggots from sweet orange and lemon differed significantly (≤0.05) between higher (Khaniyakharka 1341 masl) and lower altitude (Sindhulimadi 503 masl). The higher percentage of pupation from pre-pupae occurred at higher altitude, i.e. Khaniyakharka (91.50 ± 1.92) than at lower altitude, Sindhulimadi (86.50 ± 2.32), which was slightly higher in sweet orange (90.25 ± 2.06) than in lemon (87.75 ± 2.30). However, adult emergence was recorded at > 93% in both locations and citrus fruits. At higher altitudes, the diapause intensity was longer, 165.5 days and 164.2 days as compared to 143.5 and 141.3 days at a lower altitudes for sweet orange and lemon, respectively. Hence, the diapause intensity of the Chinese citrus fly was dependent on the prevailing temperature conditions at different locations.
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Pages:37-41
How to cite this article:
Debraj Adhikari, Resham Bahadur Thapa, Samudra Lal Joshi, Jason Jinping Du, Yubak Dhoj G C "Diapause intensity of Chinese citrus fly, <em>Bactrocera minax</em> (Enderlein) in Sindhuli, Nepal ". International Journal of Entomology Research, Vol 6, Issue 5, 2021, Pages 37-41
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