Vol. 9, Issue 11, Part B (2025)

The present study aimed to study the population fluctuation of major pod borers (M. vitrata and H. armigera) in Black-gram. The research trials were conducted during two consecutive years i.e. Kharif, 2024 at Agriculture Research Farm Kargua Ji, Bundelkhand university, Jhansi. Black-gram (Vigna mungo L.) is the member of Asian Vigna crop group and also known as urd-bean grown in Kharif season in the Indian subcontinent. It is the most important short-duration pulse crop grown in India. Black-gram crop is attacked by a number of insect pests from sowing to harvest in the field as well as in storage condition. Among these insect pests Pod borers i.e. Spotted pod borer, M. vitrata (Geyer) and Gram pod borer, Helicoverpa armigera (Hübner) are serious insect pests of Black-gram causing seed and pod damage. The Seasonal incidence of Bemisia tabacci, M. vitrata, H. armigera and Mylabris pustulata, in Black-gram with variety ‘Aazad’. The study on the seasonal incidence of Whitefly, Spotted Pod borers, Pod borer and Blister beetle start from 32^th to 43^th standard week and the peak population of all the insect in 41^th, 40^th-42^th, 37^th and 41^th standard week, respectively, during Kharif, 2024. Bacillus thuringenesis is the best treatment as it exhibits lowest leaves and bud infestation, highest yield (6.2 Q/ha) and highest benefit cost ratio (1: 2.01) were recorded. It is advisable to sown the crop in the early of June and when insect population reached at ETL, application of Bacillus thuringenesis var Kurstaki give better result.