Succession of Major Arthropods in Green Gram, Vigna radiata (L.): A Study at Jabalpur, Madhya Pradesh, India

Abstract

Mung bean, [Vigna radiata (L.)], is one of the most important Kharif pulse crops grown in the arid and semi-arid regions of India. Insect pests that attack mung beans can be classified based on their appearance in the field, which is related to the mung bean plant phenology. This study aimed to explore the succession of major arthropods in green gram, Vigna radiata (L.). A field trial was conducted on the succession of major arthropods of green gram during the kharif season 2022 at the experimental field of IFS unit JNKVV Jabalpur (M.P.), India. A total of 18 species of arthropods were recorded in the field, of which 11 are insect pests and 7 are natural enemies. The collected insects were preserved in the insect box and vials containing 70% alcohol for identification. The arthropods were graded as major and minor on the basis of their population density, extent of damage from germination to maturity, and the reduction of yield. Activity of whitefly, dragonfly and damselfly was observed from 7 to 70 days old crop. While jassid, winged bush cricket, green sting bug, spined legume bug, rove beetle and black garden ant were observed from 11,19, 30, 39, 21 and 41 to 70 days old crop. Ladybird beetle and spider were observed from 13 to 70 days old crop. Tobacco caterpillar, white spotted beetle, bean bug, red pumpkin beetle, and aphid were recorded from 14, 17, 38, 40, and 46 days old crop to 59, 31, 50, 52 and 59 days old crop, while the jewel bug was observed only 46 days old crop.