Author(s): Abhishek Yadav, Dr. DR Singh, Dr. Mahak Singh, Dr. Sanjeev Kumar, Sachin Kumar Yadav and Saurabh Kumar

Abstract: The investigation was carried out during Rabi season in 2021–2022, and 2022–2023, at Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, in the Student Instructional Farm (SIF), geographically, the district of Kanpur Nagar is located between latitude 260 29' north and longitude 79031' and 80034' east. It is in the subtropical zone. It is located 125.9 metres above the gangetic alluvial in the centre of Uttar Pradesh. This experiment was conducted to study on the population dynamics of fruit borer Helicoverpa armigera Hubner on tomato, Lycopersicon esculentum Mill. "Of insect-pest infesting tomato crops. It’s showed that in pooled data the spraying of Spinosad 45% SC provided highest yield 210.11 q/ha and 75.59% increased yield over control as compared to all other treatments. The spraying of B.T., HANPV+NSKE and HANPV provide better yield i.e. 185.46 q/ha, 178.60 q/ha and 171.66 respectively, with 54.40 percent, 48.69 and 42.92 percent increase over control, respectively. The application of Beauveria bassiana provide 167.15 q/ha and 39.17 percent increased yield. The spraying of Neem oil also provided 161.49 q/ha with 39.16 percent yield. The spraying of NSKE also provided 155.84 q/ha with 29.74 percent yield. The application of Tobacco 5% gave poorest yield i.e. 147.48 q/ha with 22.78% minimum increased yield in the present investigation as evident from Table. The poorest yield provided by control 120.11 q/ha.

DOI: 10.22271/maths.2024.v9.i2Sa.1645

Pages: 15-19 | Views: 71 | Downloads: 8

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