2013年全国玉米重大病虫害发生趋势预报

• 作 者: 杨光
• 出 处: 农药市场信息
• 发表日期: 2013年07期
• 关键词: 发生趋势预报 玉米病虫害 虫害发生 大斑病 东北 夜蛾 淮海 大发生 玉米螟 粘虫

据全国农业技术推广服务中心会同科研、教学和推广单位专家分析预测,2013年全国玉米病虫害总体偏重发生,明显重于常年,预计发生面积11.3亿亩次,虫害发生8.3亿亩次,病害发生3.0亿亩次;将影响全国约3亿亩玉米的安全生长。其中,玉米螟、大斑病在东北、华北偏重发生,局部大发生;二、三代粘虫在东北、华北和黄淮等地中等以上发生的可能性较大;二点委夜蛾在黄淮海中等发生,局部偏重发生。

According to the analysis and forecast made by experts from the National Agricultural Technology Extension Service Center, together with scientific research, teaching and promotion units, the national maize pests and diseases in 2013 were generally heavily weighted, significantly heavier than perennials, with an estimated area of ​​1.13 billion mu and an incidence of 8.3 billion mu pests and 3.0 Acres will affect the safe growth of about 300 million mu of corn nationwide. Among them, the corn borer, the big spot disease in northeast and north China, the occurrence of partial occurrence; the second and third generation of armyworms in northeastern China, North China and Huanghuai and other places more likely to occur; Moderate, local emphasis occurred.