随着温州市蔬菜种植面积不断扩大,保护地反季节蔬菜栽培技术日益普及,复种指数渐高,菜田多样化品种为害虫周年提供丰富的寄主和桥梁,本地菜田害虫发生加剧,防治难度加大。如1996～1998年斜纹夜蛾、甜菜夜蛾大暴发,1997年引进了新型生物农药除尽、米螨等防治。虽然有效地控制了 With the continuous expansion of vegetable planting area in Wenzhou City, the protection of counter-seasonal vegetable growing technology is becoming more and more popular, and the index of multiple cropping is getting higher. The diversified vegetable varieties provide abundant hosts and bridges for pest annihilations, aggravating the pest insects in local vegetable fields, Big. Such as 1996 ~ 1998 Spodoptera, beet armyworm outbreak, in 1997 introduced a new type of biological pesticide addition to do, mites and other prevention and treatment. Although effectively controlled