论文部分内容阅读
玉米弯孢霉叶斑病是近几年在我省玉米生产上新发生的一种玉米叶部病害,一般年份发病率在10—30%,严重的达50%以上,尤其是高温高湿多雨年份极利于该病的发生和流行,对夏玉米安全生产威胁严重。一、病原弯孢霉叶斑病的病原菌为新月弯孢菌(Curvularia lunata),属半知菌亚门、弯孢霉属。该病主要发生在东北和华北玉米产区,南方玉米产区局部发生。弯孢霉病菌主要危害玉米叶片,
Maize Curvularia leaf spot is a corn leaf disease newly occurred in the corn production in our province in recent years. The incidence of maize leaves is 10-30% in most years, and it is more than 50% in severe cases, especially in high temperature, Year is extremely conducive to the occurrence and prevalence of the disease, threaten the safety of summer maize production. First, the pathogen of Curvularia lunata is Curvularia lunata, belonging to the subdivision Amygdalone and Curvularia. The disease occurs mainly in the northeast and north China corn producing areas, southern corn producing areas occur locally. Curvularia fungus main damage to corn leaves,