Seasonal incidence of stem fly, Melanagromyza sojae (Zehntner) infesting black gram (Vigna mungo L.) in kharif

A field experiment on the seasonal incidence of stem fly, Melanagromyza sojae (Zehntner) infesting black gram was carried out in variety GU 1 (Gujarat Urd 1) during kharif 2017 and 2021 at Entomology farm, B. A. College Agriculture, AAU, Anand. Infestation M. sojaewas observed from 1st WAS i.e., 34th SMW. Later on, infestation increased gradually its highest 39th SMW 68.33 73.33% kharif, 2021, respectively. Stem fly exhibited a highly significant positive association (r = 0.519** 0.655**, respectively) with bright sunshine hours (BSS) maximum temperature (MaxT), Abiotic factors viz., rainfall (RF) negative (-0.458*), while evaporation (EP) showed (0.466*).