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【春耕备耕】​2024年内蒙古农作物重大病虫害发生趋势

2024-03-08 08:49:19 来源:内蒙古自治区农牧厅 阅读量:14071 评论

导读:预计2024年内蒙古玉米、大豆、小麦、马铃薯等主要粮食作物和油料、蔬菜等经济作物重大病虫害中等发生,局部地区偏重发生,预计全区发生面积约1.2亿亩次,较2023年实际发生面积增加18.8%,对农业生产安全构成较大威胁。

  【农机网 地方农机】 近期,自治区植保植检中心组织科研院所、高校及植保系统相关专家,对2024年我区农作物重大病虫害发生趋势进行分析会商。综合分析病虫源基数、种植制度、农作物布局和气候等因素,预计2024年玉米、大豆、小麦、马铃薯等主要粮食作物和油料、蔬菜等经济作物重大病虫害中等发生,局部地区偏重发生,预计全区发生面积约1.2亿亩次,较2023年实际发生面积增加18.8%,对农业生产安全构成较大威胁。
 
  一、预计玉米“六虫三病”发生面积7000万亩次
 
  重大迁飞性害虫草地贪夜蛾、粘虫、草地螟,如气候条件适宜,受蒙古国、俄罗斯境外以及外省虫源迁入影响,存在突发、暴发、集中为害的风险。
 
  常发害虫玉米螟,越冬虫源基数高于上年,预计东部四盟市玉米主产区偏重发生。玉米红蜘蛛,受高温干旱影响,呼和浩特以西玉米种植区偏重发生,局部地区重发生。
 
  多食性害虫双斑萤叶甲,在全区玉米种植区普遍中等发生,局部地区偏重发生。
 
  玉米大斑病、弯孢霉叶斑病、丝黑穗病,受降雨条件影响东部区中等—偏重发生。
 
  二、预计大豆“三病一虫”发生面积500万亩次
 
  大豆根腐病,因大豆扩种、连年重茬种植,呼伦贝尔市中等发生,局部地块偏重发生。
 
  大豆褐斑病,大豆菌核病,呼伦贝尔市、赤峰市中等发生,局部地区偏重发生。
 
  大豆食心虫,呼伦贝尔市、兴安盟偏轻发生,局部地块中等发生。
 
  三、预计小麦“两病一虫”发生面积150万亩次
 
  小麦赤霉病,呼伦贝尔市轻发生。
 
  小麦锈病,呼伦贝尔市、赤峰市、巴彦淖尔市、乌兰察布市、锡林郭勒盟轻发生。
 
  小麦蚜虫,巴彦淖尔市、乌兰察布市、赤峰市中等发生。
 
  四、预计马铃薯主要病害发生面积270万亩次
 
  重大流行性病害马铃薯晚疫病,如遇适宜气候条件、在呼伦贝尔市、兴安盟存在流行性发生的风险,局部地区偏重发生。
 
  马铃薯疮痂病、粉痂病、黑胫病,在乌兰察布、锡林郭勒盟、呼和浩特市有加重发生趋势。
 
  五、预计其他油料、蔬菜作物重大病虫害发生面积350万亩次
 
  向日葵菌核病,乌兰察布以西地区和赤峰市部分区域偏重发生。
 
  油菜菌核病,油菜主产区呼伦贝尔市偏轻发生;黄条跳甲呼伦贝尔市、呼和浩特市、乌兰察布市中等发生。
 
  蔬菜重大害虫番茄潜叶蛾,2021年7月首次传入我区巴彦淖尔市。目前已快速扩散到除呼伦贝尔市以外的11个盟市62个旗县,预计赤峰市、呼和浩特市、包头市、巴彦淖尔市蔬菜主产区偏重发生。
 
  请各地进一步加强监测体系建设,提升防灾减灾能力,加力加密监测调查,做到早监测、早发现、早预警,防早治小,源头控制,及时采取有效措施,努力减少产量损失,确保国家粮食生产安全和重要农产品有效供给。
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