With cassia oil as the material,optimal experiments on the formulation of the emulsion cassia oil and ovicidal tests of different formulas against Lucilia sericata(Meigen) damaged kipper were conducted.Through conducting L9(34) orthogonal tests involving 4 factors and 3 levels,and comparison of emuisifying stabilization,the optimum emulsion formula was determined: 7%(V/V) cassia oil,0.6%(W/V) octulanddecylglycerate,0.4%(W/V) sucrose ester and 9%(W/V) starch ester octenyl succinate.The ovicidal tests showed ...