Impact of intercropping with black gram on incidence of stem fly, Melanagromyza sojae (Zehntner) during the Kharif season in Gujarat

Investigation on impact of intercropping with black gram on incidence of stem fly, Melanagromyza sojae (Zehntner) were carried out at Anand Agricultural University, Anand during kharif season (2017 and 2021). Black gram intercropped with either maize or sorghum (3:2) proved superior over rest of intercropping systems with lower infestation (22.20 %), tunnelling (8.00 %), larval population (0.14 /plant) and pupal population (0.19 /plant) of stem fly, M. sojae. Higher black gram equivalent seed yield was registered in all the treatments of intercropping systems i.e., black gram + maize (3:2 and 5:1 ratio) and black gram + sorghum (3:2 and 5:1 ratio) in comparison to black gram as sole crop.