Seasonal abundance of natural enemies on bg-I and bg-II Bt cotton ecosystem

the population of lady bird beetles during 1^st year on BG-I and BG-II Bt cotton ranged from 0.30 to 3.55 and 0.20 to 3.25 beetles/plant, respectively and in 2^nd year ranged from 0.25 to 7.05 and 0.50 to 6.30 beetles/plant. the population dynamics of chrysopa during 1^st year ranged from 0.20 to 1.50 and 0.25 to 1.50 on BG-I and BG-II Bt cotton. during 2^nd year the population of chrysopa ranged from 0.10 to 2.70 and 0.05 to 3.00 Chrysopa/plant. The population fluctuation of spider during 1^st year on BG-I and BG-II Bt cotton ranged from 0.10 to 1.75 and 0.10 to 1.50 spider/plant. during 2^nd year it ranges from 0.10 to 1.90 and 0.10 to 1.50 spiders/plant. The population fluctuations of Syrphid maggots during 1^st year on BG-I and BG-II Bt cotton ranged from 0.05 to 1.80 and 0.10 to 2.50 maggots/plant. during 2^nd year the population of Syrphid maggots ranged between 0.05 to 2.35 and 0.05 to 2.50 maggots/plant.