VIJAY KUMAR, HEMANT SWAMI, LEKHA, H.K. JAIN AND K.D. AMETA

A field experiment on “Population dynamics of major insect pests infesting black gram ( L.)” Vigna mungo was carried out at Agronomy farm, Rajasthan College of Agriculture, MPUAT, Udaipur during 2018. Kharif, The major sucking insect pests observed on blackgram were aphid, (Koch); jassids, Aphis craccivora Empoasca kerri Bemisia tabaci Caliothrips indicus (Pruthi); whiteflies, (Gennadius) and thrips, (Bagnall). The peak population of aphid (36.67/ 5plant), jassid (30.67/5 plant) and whitefly (35.67/5plant) were recorded during first week (31 SMW) of August; while peak population of thrips (17.33/5plant) in the second week (32 SMW) of August. The population of aphid, jassid, whitefly and thrips exhibited a non-significant th positive correlation with temperature, while thrips exhibited positive significant correlation. Aphid and jassid exhibited negative significant correlation with relative humidity.