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 |
The field experiment was carried out at Agricultural and Horticultural Research Station, Honnavile farm Shivamogga during Kharif 2016-17. Totally 15 Bt cotton hybrids and their counter non Bt cotton hybrids were screened against sucking pests of cotton like aphids and whiteflies under unprotected conditions. Lowest population of aphids were recorded in DCH-32 (13.04 aphids/ 3 leaves) followed by Ankur HB-2110 non Bt, MRC-7351 non Bt, SP904BG-II chamundi BG-II and chamundi BG-II non Bt, Minerva BG-I non Bt, MRC-7351, Minerva BG-I MRC-7918 non Bt and Ankur HB-2110 the highest population of aphids were recorded in double Bt (19.08 aphids/ 3 leaves) and MRC-7918 (18.54 aphids/ 3 leaves). However lowest population of whiteflies were recorded in DCH-32 (0.96 whiteflies/ 3 leaves) while the highest population of whiteflies were recorded in double Bt non Bt (4.54 whiteflies/ 3 leaves).
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