史惠琴等
摘要對2009~2013年隴東地區馬鈴薯晚疫病發生流行原因進行了分析,并提出了防控措施。結果表明,氣候適宜是該病發生流行的決定因素;品種抗病性差、菌源量充足、栽培管理不規范、防控措施不到位是發生流行的主要原因。提出了選用抗病品種、 減少菌源、加強栽培管理、藥劑防治、開展監測和統防統治等綜合防控措施。
關鍵詞隴東;馬鈴薯晚疫病;流行原因;防控措施
中圖分類號S435.32文獻標識碼A文章編號0517-6611(2014)21-07076-02
The Epidemic Reason Investigation and Prevention and Control Measures of Potato Late Blight in Longdong
SHI Huiqin, SHI Zhifeng(Jingchuan Agricultural Technology Extension Center, Jingchuan, Gansu 744300)
AbstractThe epidemic reasons of potato late blight in Longdong area were analyzed from 2009 to 2013, the prevention and control measures were put forward. Its clear that climate optimum is the determinant factor of epidemic, and that major epidemic reasons are poor disease resistance of varieties, abundant pathogen, unnormative cultivation management and inadequate prevention and control measures. Thus, comprehensive prevention and control measures are proposed, including selecting diseaseresistant varieties, reducing fungus resource, strengthening cultivation management, developing chemical control, conducting surveillance, promoting the professional pest control system and so on.
Key wordsLongdong; Potato late blight; Epidemic reason; Prevention and control measure
馬鈴薯晚疫病連年達中度至中度偏重發生,一般年份減產15%左右,嚴重年份減產30%以上,造成馬鈴薯商品率下降、產量效益低而不穩,直接影響了農民增收及農村經濟的發展。為此,筆者對馬鈴薯晚疫病發生流行成因進行了研究,并提出了防控措施,旨在為指導馬鈴薯產業的持續穩定發展提供借鑒。
1發生情況
3.5積極開展監測和統防統治市、縣各級行政和植保部門要設立馬鈴薯晚疫病數字化監測預警系統,建立健全縣、鄉、村三級監測和防治體系,及時掌握晚疫病發生動態。當田間發現中心病株時,應在3 d內組織機防隊開展統防統治和群防群治。抓住重點區域和防治關鍵期,實施“統一部署、統一時間、統一技術、統一藥械”的專業化統防統治。
參考文獻
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