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研究了营养型生物农药“杀鳞精”分别与４种化学农药混配对小菜蛾的防效。结果表明，４种混配液室内７２ｈ的校正死亡率在８３．７％～１００％，田间药后７ｄ的校正防效为８３．２％～１００％，均优于常规化学农药和市售Ｂｔ；杀鳞精与４％万灵、杀鳞精与４％绿宝素的混配液具有较好的速效性；协同毒力指数在１７．３％～４４．８％之间，具有增效作用；小菜蛾对用４种混配液处理过的菜叶表现出了强烈的忌避性，拒食率为８１．５％～９６．５％；同时，杀鳞精具有不同程度的营养作用，可以提高作物的株高和株重。
The control efficacy of nutrient biocide “Killer scales” with four kinds of chemical pesticides on Plutella xylostella was studied. The results showed that the corrected mortalities at 72 h in the four mixed liquid compartments ranged from 83.7% to 100%, and the corrected control effect was 83.2% -100% at 7 d after field treatment, which were better than the conventional chemical pesticides and commercially available Bt ; Killing scales and 4% Wanling, Kill and 4% Eplentin mixed solution has good fast-acting; synergistic virulence index between 17.3% ~ 44.8%, with synergistic ; Plutella xylostella exhibited a strong repellent effect on the leaves treated with the four kinds of mixed liquor, and the antifeedant rate was 81.5% -96.5%; at the same time, it had different degrees of nutritional effects, Increase plant height and plant weight.