This paper reported the control effect of the mixture of Bacillus thuringiensis(Bt) with biological insecticide Success to Plutella xylostella L.and Pieris rapae L.in the field trial.

• 将苏云金杆菌(Bacillus thuringiensis；Bt)菌株20与生物杀虫剂Success混配制成复配剂；对2龄小菜蛾(Plutella xylostella L.；) 幼虫和菜青虫(Pieris rapae L