玉米主要病虫害的防治措施问：玉米主要病虫害有哪些？答：玉米螟和病毒病是近年来影响玉米生产的两个主要因素。玉米螟蛀秆为害，被群众称为“哑巴灾”，是北方玉米产区的头号害虫。病毒病被称为“玉米癌症”，近两年发生面积迅速扩大。综合防治方法如下：玉米病毒病玉米... Prevention and control of major pests and diseases of corn Q: What are the main pests and diseases of corn? A: The corn borer and the virus disease are two major factors that have affected maize production in recent years. Corn borer borer stalk damage, by the masses known as “dumb disaster”, is the number one pests in the northern corn producing areas. The virus disease is called “corn cancer” and its area has expanded rapidly in recent two years. Integrated control methods are as follows: corn virus disease corn ...