Population Dynamics and Ecological Role of Chrysoperla spp. In Major Agricultural crops: A Review

Abstract

The growing global population, projected to reach 9.7 billion by 2050, demands sustainable agricultural practices to ensure food security. The widespread use of chemical pesticides has raised concerns due to their harmful impacts on health and ecosystems. As a result, Integrated Pest Management (IPM) strategies, including biological control, have gained prominence. Chrysoperla carnea, commonly known as the green lacewing, is a key predator in biological pest control, effectively managing pest populations across various crops. This review examines the population dynamics of Chrysoperla spp. in sunflower, brinjal, cotton, okra, chilli, tomato, fennel, coriander, and mustard. The studies highlight how Chrysoperla populations are influenced by abiotic factors such as temperature and humidity, as well as biotic factors like prey availability. Positive correlations between predator and pest populations were noted across crops, emphasizing Chrysoperla's role in pest suppression. Additionally, intercropping strategies, particularly in fennel and coriander, have shown to enhance Chrysoperla populations, indicating the potential of such practices in improving pest control outcomes. Overall, Chrysoperla spp. are vital to sustainable pest management, reducing dependency on chemical pesticides and supporting environmentally friendly and economically viable agriculture within IPM frameworks.