玉米粗缩病的发生与病毒侵染与玉米植株的生育期关系密切。普通玉米品种6叶龄以下为敏感生育期,6叶龄以上为非敏感生育期。目前生产上种植的杂交玉米适播期较长,如能根据传毒昆虫灰飞虱的消长、传毒规律,合理确定玉米播种期,使玉米敏感生育期最大限度地避开灰飞虱传毒盛期,即可避免或大幅度减轻玉 The occurrence of maize rough and virus infection and the growth of corn plants are closely related. Ordinary maize varieties 6-leaf-sensitive to the following period of sensitization, 6-leaf age above non-sensitive growth period. At present, the production of hybrid corn sowing suitable for a longer period of sowing, such as according to the consumption of insects, the growth and decline of Laodelphax striatellus, poisoning law, a reasonable determination of corn sowing period, the corn sensitive to maximize the developmental period to avoid Laodelphaxapogenin Peak, you can avoid or substantially reduce jade