不可忽视的二代玉米螟海城市农业示范场崔秀梅玉米螟是农作物的主要害虫之一。近几年，二代玉米螟的为害已从次要地位逐渐上升到了不可忽视的地位。据我们在海洲、王石等地调查，８０年代农作物一代玉米螟为害达４０－５０％，到９０年代初已基本控制在１０－２０％。但从... Second generation corn borer can not be ignored Hai agricultural demonstration field Cui Xiumei corn borer is one of the main pests of crops. In recent years, the second generation of corn borer damage has gradually risen from the secondary position to the position can not be ignored. According to our survey in Haizhou and Wangshi, 40-50% of the crop corn borer was harmed in the 1980s and basically controlled at 10-20% by the early 1990s. But from ...