author(s)
Ram Veer, Umesh Chandra, CPN Gautam, SK Yadav, Sanjeev Sharma, Suraj Kumar and Akshay Kumar

abstract
The experiment was conducted at Students’ Instructional Farm of Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya during Rabi season, 2017-18 and Rabi season, 2018-19. Revealed that the larval population of H. armigera were noticed for the first time during 47^th & 46^th standard week (SW) of Rabi season, 2017-18 & Rabi season, 2018-19. The minimum larval population of Helicoverpa armigera was 0.27 & 0.33 larvae /plant recorded during 47^th SW of Rabi season, 2017-18 & Rabi season, & 2018-19 followed by 0.40 & 0.47 larvae /plant were recorded in 48^th of Rabi season, 2017-18 & 46^th SW of Rabi season, 2018-19. The maximum larvae were recorded in the 10^th SW of Rabi season, 2017-18 & 12^th SW of Rabi season, 2018-19 with respective larval population of H. armigera 3.13 & 3.86 /plant followed by 2.93 larvae & 3.54 larvae /plant in 9^th SW of Rabi season, 2017-18 & 11^th SW of Rabi season, 2018-19. The minimum damage plants due to cut worm was recorded during 45^th SW of Rabi season, 2017-18 & 51^st SW of Rabi season, 2018-19 with respected damage plant 0.67 & 0.33 /m² and maximum damage plants due to cut worm were recorded in the 48^th SW of Rabi season, 2017-18 & 47^th SW of Rabi season, 2018-19 with respective, 2 & 2.33 damage plant /m². The minimum damage plants due to termite was recorded during 45^th SW and 50^th SW of Rabi season, 2017-18 & 1^st SW of Rabi season, 2018-19 with respected damage plant 0.33, 0.33 & 0.33 /m² and maximum damage plants due to termite were recorded in the 48^th SW of Rabi season, 2017-18 & Rabi season, 2018-19 with respective, 1.67 & 1.33 damage plant /m².