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 experiment was carried out in rabi season 2018-19 in the Insectary of Department of Entomology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. The first appearance of aphid, thrips and fruit borer was observed on tomato variety Azad Type-6 with its initial intensity of 4.8 aphids/plant, 7.6 thrips/plant and 1.2 larvae/m row length in the 51st SMW (third week of December), 52nd SMW (fourth week of December) and 2nd SMW (second week of January), respectively. Conducive Period of aphid, thrips and fruit borer infestation was found between mid January to mid February (3rd to 7th SMW), first week of February (6th SMW) and second week of February (6th SMW), respectively. Simple correlation coefficient (r) between the incidence of aphid & thrips and prevailing weather parameters revealed that maximum temperature, minimum relative humidity, average relative humidity and rainfall showed significant positive impact on aphid multiplication, while remaining environmental factors had their insignificant effect. Simple correlation coefficient (r) between the incidence of fruit borer larvae and prevailing weather parameters revealed that minimum relative humidity, average relative humidity and rainfall showed significant positive impact on fruit borer larvae multiplication, while remaining environmental factors had their insignificant effect.
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