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【春耕備耕】?2024年內蒙古農作物重大病蟲害發生趨勢

2024-03-08 08:49:19 來源:內蒙古自治區農牧廳 閱讀量:14345 評論

  【農機網 地方農機】 近期,自治區植保植檢中心組織科研院所、高校及植保系統相關專家,對2024年我區農作物重大病蟲害發生趨勢進行分析會商。綜合分析病蟲源基數、種植制度、農作物布局和氣候等因素,預計2024年玉米、大豆、小麥、馬鈴薯等主要糧食作物和油料、蔬菜等經濟作物重大病蟲害中等發生,局部地區偏重發生,預計全區發生面積約1.2億畝次,較2023年實際發生面積增加18.8%,對農業生產安全構成較大威脅。
 
  一、預計玉米“六蟲三病”發生面積7000萬畝次
 
  重大遷飛性害蟲草地貪夜蛾、粘蟲、草地螟,如氣候條件適宜,受蒙古國、俄羅斯境外以及外省蟲源遷入影響,存在突發、暴發、集中為害的風險。
 
  常發害蟲玉米螟,越冬蟲源基數高于上年,預計東部四盟市玉米主產區偏重發生。玉米紅蜘蛛,受高溫干旱影響,呼和浩特以西玉米種植區偏重發生,局部地區重發生。
 
  多食性害蟲雙斑螢葉甲,在全區玉米種植區普遍中等發生,局部地區偏重發生。
 
  玉米大斑病、彎孢霉葉斑病、絲黑穗病,受降雨條件影響東部區中等—偏重發生。
 
  二、預計大豆“三病一蟲”發生面積500萬畝次
 
  大豆根腐病,因大豆擴種、連年重茬種植,呼倫貝爾市中等發生,局部地塊偏重發生。
 
  大豆褐斑病,大豆菌核病,呼倫貝爾市、赤峰市中等發生,局部地區偏重發生。
 
  大豆食心蟲,呼倫貝爾市、興安盟偏輕發生,局部地塊中等發生。
 
  三、預計小麥“兩病一蟲”發生面積150萬畝次
 
  小麥赤霉病,呼倫貝爾市輕發生。
 
  小麥銹病,呼倫貝爾市、赤峰市、巴彥淖爾市、烏蘭察布市、錫林郭勒盟輕發生。
 
  小麥蚜蟲,巴彥淖爾市、烏蘭察布市、赤峰市中等發生。
 
  四、預計馬鈴薯主要病害發生面積270萬畝次
 
  重大流行性病害馬鈴薯晚疫病,如遇適宜氣候條件、在呼倫貝爾市、興安盟存在流行性發生的風險,局部地區偏重發生。
 
  馬鈴薯瘡痂病、粉痂病、黑脛病,在烏蘭察布、錫林郭勒盟、呼和浩特市有加重發生趨勢。
 
  五、預計其他油料、蔬菜作物重大病蟲害發生面積350萬畝次
 
  向日葵菌核病,烏蘭察布以西地區和赤峰市部分區域偏重發生。
 
  油菜菌核病,油菜主產區呼倫貝爾市偏輕發生;黃條跳甲呼倫貝爾市、呼和浩特市、烏蘭察布市中等發生。
 
  蔬菜重大害蟲番茄潛葉蛾,2021年7月首次傳入我區巴彥淖爾市。目前已快速擴散到除呼倫貝爾市以外的11個盟市62個旗縣,預計赤峰市、呼和浩特市、包頭市、巴彥淖爾市蔬菜主產區偏重發生。
 
  請各地進一步加強監測體系建設,提升防災減災能力,加力加密監測調查,做到早監測、早發現、早預警,防早治小,源頭控制,及時采取有效措施,努力減少產量損失,確保國家糧食生產安全和重要農產品有效供給。
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