菜青虫是十字花科蔬菜的重要害虫,抗药性强,常用化学农药已不能有效地控制其为害.1979年5月,从泰安菜区自然患病死亡的菜青虫上分离得一株毒力较强的颗粒体病毒,两年来,通过室内外试验和大田示范应用,效果良好,且经济简便安全.为推广应用于大田生产,同基层科技队结合,对菜青虫颗粒体病毒的简易生产、保存和应用进行了试验.由于这种病毒寄主专一,仅能在菜青虫 Pieris rapae is an important pest of cruciferous vegetables, strong resistance, commonly used chemical pesticides can not effectively control the damage .1979 May, from the natural disasters of Tai’an vegetable zone Pieris rapae isolated a virulence than Strong particle virus, the past two years, through indoor and outdoor experiments and Daejeon demonstration application, the effect is good, and the economy is simple and safe.To promote the application in the field production, with the grassroots science and technology team, simple cabbage caterpillar virus production, preservation And the application was tested. Since this virus is host-specific, it can only be found in Pieris rapae