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 |
Population dynamics studies of pink stem borer was carried out during spring seasons of the year 2013-14 and 2014-15 at the Research cum Instructional Farm, IGKV, Raipur (C.G.). Larval population increased gradually and reached to a peak of 13.81 and 18.56 larvae /plant in 56 days (12th SMW) and 49 days (11th SMW) in spring season during 2013-14 and 2014-15, respectively. The maximum adult population was trapped during fourth week of March (13th SMW) and third week of March (12th SMW), when the mean maximum29.7 ºC and 36.4ºC and minimum temperatures were16.4and 19.4ºC and with mean relative humidities of 67 and 47.5 per cent during the years 2013-14 and 2014-15, respectively. The interactions between the larval population and weather parameters revealed non-significant correlation. The interactions between the adult population and weather parameters during spring 2013 and 2014 revealed negative and significant and non-significant correlation with maximum temperature (r = - 0.6519 and - 0.4964), negative and significant correlation with minimum temperature (r = - 0.682 and r = - 0.566) while the interactions with morning and evening relative humidity was positive as well as significant with morning relative humidity (r = 0.610 and 0.649) but non-significant with evening relative humidity, respectively.
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