30Mar 2017

STUDY ON POPULATION BUILDS UP OF RICE LEAF FOLDER Cnaphalocrocis medinalis (Guenee) IN RELATION TO WEATHER PARAMETERS.

  • Department of Entomology, N.M.College of Agriculture, Navsari Agricultural University, Navsari-396450 (Gujarat).
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Study on population build up of rice leaf folder Cnaphalocrocis medinalis (Guenee) was carried out at NARP Farm, Navsari Agricultural University, Navsari during Kharif 2012 and 2013.The observation on per cent damaged leaves was recorded immediately after transplanting up to the harvest of the crop. Results shows that maximum 21.9 per cent damaged leaves were observed during fourth week of July (30th SMW) and that of minimum (0.2 per cent) were in fourth week of October (43rd SMW). In the present investigation, per cent damage leaves showed significant and positive correlation with morning relative humidity, evening relative humidity, average relative humidity and rainfall but significant negative correlation with maximum temperature, sunshine hours and evaporation rate.

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[S. N. Gajjar, M. B. Patel and Abhishek shukla. (2017); STUDY ON POPULATION BUILDS UP OF RICE LEAF FOLDER Cnaphalocrocis medinalis (Guenee) IN RELATION TO WEATHER PARAMETERS. Int. J. of Adv. Res. 5 (Mar). 2215-2218] (ISSN 2320-5407). www.journalijar.com

S.N.Gajjar
Navsari Agricultural University, Navsari- 396450, Gujarat

DOI:

Article DOI: 10.21474/IJAR01/3744      
DOI URL: http://dx.doi.org/10.21474/IJAR01/3744

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