Population Dynamics of Arthropods in Green Gram [Vigna radiata (L.)] and their Correlation with Meteorological Data at Jabalpur District of Madhya Pradesh, India

Abstract

Field experiment was carried out to study the population dynamics of arthropods on green gram [Vigna radiata (L.)] at Jabalpur district of Madhya Pradesh, India during the kharif season 2022-23. The result revealed that the highest population of whitefly, jassid and ladybird beetle were observed in the 37th standard meteorological week (SMW) with a population of 6.87 adult / plant, 6.56 adult / 6 leaves and 0.76 adult / plant respectively. The highest population of yellow mosaic virus and damselfly were observed during the 43rd and 40th SMW respectively, with a population of 22.87% and 1.83 adult / sweep respectively. Spider and dragonfly were during the 41st SMW with a population of 0.36 adult / plant and 1.5 adult / sweep respectively. Correlation studies revealed that the whitefly showed a significant positive correlation with wind speed jassid showed a significant positive correlation with evening relative humidity, wind speed and rainy days while the dragonfly showed a significant positive correlation with evaporation. Damselfly showed a significant positive correlation with maximum temperature and ladybird beetle showed a significant positive correlation with whitefly, suggesting potential biocontrol relationships. These findings provide valuable insights into how climate variables influence arthropod populations, which can inform more targeted pest management strategies for green gram cultivation.