National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Darjeeling mandarin (Citrus reticulata Blanco) is one of the most popular fruit crops of Darjeeling and Kalimpong districts of West Bengal, India. The cultivation of the crop is significantly affected by the attack of Chinese citrus fly Bactrocera (Tetradacus) minax (Enderlein) (Diptera: Tephritidae). Survey was conducted in the months of November and December of 2017 and 2018 to find out the dimension of the problem along with its distribution, detection of alternative hosts etc. During the survey, 600 samples were collected from 323-1610 meters above sea level (MASL) out of which on an average 50.83% of the fruit samples were found to be infested by the fly. However 10.40-75.18% of the fruits were found to be infected by the pest during harvesting in different orchards. Citrus hosts infested by B.minax include Darjeeling mandarin (Citrus reticulata Blanco), Sweet orange (Citrus sinensis Osbeck), Rough lemon (Citrus jambhiri Lush) and kinnow mandarin (Citrus reticulata Blanco). Rangpur lime (Citrus limonia Osbeck), had been found to be infested by B. minax along with Ptecticus sp (Diptera: Stratiomyidae) from harvested and fallen fruits. Report on range of hosts infested by B. minax, recorded during study was first of its kind from India.
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