Influence of Abiotic Factors and Hosts on Seasonal Dynamic of Green Lacewing, Chrysoperla carnea (Stephens)

Influence of abiotic factors and hosts on population dynamics of green lacewing, Chrysoper lacarnea(Stephens) was studied in sunflower, Helianthus annus(Linn.).The maximum number of C. carnea population was found during mid March –mid April in the first year and mid April – mid May in the second year in sunflower crop. The maximum number of host population viz.egg and larva of Helicoverpa armigeraand Myzuspe persicae population were found during mid March –mid April in both the year and correlation studies revealed the positive and significant correlation between larval population of H. armigera, M. persicae and predator C. carnea. While there was no significant relationship found between eggs of H. armigeraand C. carnea. The C. carneapopulation on H. annus during both the year was positively correlated with maximum temperature and found significant, while negatively correlated with relative humidity. However, no significant correlation of C. carneawas found with minimum temperature in both the year