The Conducted study the effect of Beauverea bassiana (Balsamo) and Marshall Pesticide in The various roles of Chrysoperla carnea (Stephens) show result the effect of the fungi B. Bassiana on all developmental stages of Green lacewing the predator Chrysoperla carnea ) Stephens.(The pathogenicity of the fungi B. Bassiana at concentration of 1 × 108 spore / ml was tested on all developmental stages of Green lacewing , the hatching percent treated eggs was 22.23% where the mortality of first instar larva reached to 100%, while the second instar 66.66% and third instar 48.14%, the pathogen also caused mortality to the pupil stage 40.7% and adults 81.5.
The study results showed the effects of insecticide marshal used at concentration of 1, 0.5, 0.3, 0.1 ml were affected on all stages of Chrysoperla carnea. At concentration of 1, 0.5, 0.3 ml , the percent mortalities of eggs were 77.8%, 63%, 44.4% respectively, while no mortality was observed at concentration of 0.1 ml . the insecticide had adverse effect first instar larvae at all concentrations with 100% mortality treatment of second instar larvae with concentrations 1 , 0.5 ml caused 59.3, 33% mortality.The effect of Marshal decreased on third instar larvae, the concentration pesticide 1 and 0.5 ml caused 29.6 and 3.7% mortality respectively . However, the concentrations of the pesticide 0.3 and 0.1 ml had no mortality effect at all. Infect, the effects of Marshal extend to pupil stage, the percent of mortality of pupae were 14.8% and 3.7% at the concentration of 1, 0.5 ml. However, lower concentration 0.3; 0.1 ml had no effects on emergence of adult .As well as, the insecticide effect on adult stage, the mortality percent were100percentage, 92.6%, 66.7% and 25.9% when the marshal applied the concentration 1, 0.5, 0.3 and 0.1 respectively