Population Dynamics of Major Insect Pests and Other Arthropods of Rose under Protected Conditions

Abstract

This study investigates the population dynamics of major insect pests and other arthropods affecting rose cultivation under protected conditions in a protective environment at the Department of Entomology, Jawaharlal Nehru Krishi Vishwavidyalaya, Jabalpur, from November 2020 to March 2021. The study focuses on thrips (Scirtothrips dorsalis), tobacco caterpillar (Spodoptera litura), and green aphids (Macrosiphum rosae), analyzing their population trends in relation to temperature and relative humidity. Thrips populations ranged from 7.2 to 21.48 per flower, showing significant positive correlations with maximum and minimum temperatures but a negative correlation with evening relative humidity. Tobacco caterpillar populations varied between 0.3 and 2.6 larvae per plant, with no significant correlations to temperature or humidity. Green aphids ranged from 1.8 to 7.15 per bud, showing a significant positive correlation with morning relative humidity. The findings underscore the importance of temperature and humidity in managing pest populations and highlight the need for further research into the biological and ecological factors influencing pest dynamics.