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2025年大豆玉米帶狀復合種植病蟲害防控技術方案
2025-03-03
10:26:15
來源:全國農技推廣中心 閱讀量:10191
評論
大豆玉米帶狀復合種植區植株緊密、病蟲害種類多樣,甜菜夜蛾、斜紋夜蛾、點蜂緣蝽、莖腐病、根腐病、葉斑病等病蟲害在局部地區有加重發生的風險,為做好2025年復合種植病蟲害防治工作,全國農技中心特制定本方案。
防治策略
堅持預防為主、綜合防治方針,以大豆玉米帶狀復合種植模式下主要病蟲害協同防治為重點,綜合應用健康栽培、理化誘控、生物防治和科學用藥等技術措施,抓住病蟲發生窗口期實施綜合防治,合理利用高效植保器械,切實提高防治效果,保障生產和質量安全。
防治對象
(一)西南間(套)作種植模式區
玉米:穗腐病、白斑病、紋枯病、大斑病、灰斑病、南方銹病,草地貪夜蛾、玉米螟、桃蛀螟、粘蟲、棉鈴蟲、蚜蟲等。大豆:根腐病、銹病、病毒病、炭疽病,斜紋夜蛾、豆莢螟、豆稈黑潛蠅、甜菜夜蛾、高隆象、稻綠蝽、地下害蟲等。
(二)西北間作模式區
玉米:銹病、莖腐病、大斑病,玉米螟、蚜蟲、葉螨、棉鈴蟲、地下害蟲、雙斑長跗螢葉甲等。大豆:根腐病、霜霉病、灰斑病,大豆食心蟲、大豆蚜蟲、豆莢螟、紅蜘蛛、棉鈴蟲、葉甲、地下害蟲等。
(三)黃淮海和長江中下游間作模式區
玉米:南方銹病、穗腐病、褐斑病、彎孢葉斑病、小斑病、莖腐病,玉米螟、棉鈴蟲、粘蟲、桃蛀螟、蚜蟲、薊馬等。大豆:根腐病、病毒病、炭疽病、擬莖點種腐(莖枯)病,甜菜夜蛾、棉鈴蟲、斜紋夜蛾、點蜂緣蝽、煙粉虱、豆莢螟、大豆食心蟲、地下害蟲等。
防控措施
(一)播種期。選用抗(耐)病蟲品種,合理密植。玉米選擇耐密緊湊型,種子處理以防治蚜蟲、薊馬、玉米莖腐病、絲黑穗為主;大豆選擇耐陰性品種,種子處理以防治大豆根腐病、擬莖點種腐病、地下害蟲、葉甲為主。選擇含有精甲·咯菌腈、噻呋酰胺、吡唑醚菌酯、噻蟲嗪、吡蟲啉等成分的種衣劑。不同區域根據當地主要病蟲種類選擇相應的藥劑。
(二)苗期—玉米喇叭口期(大豆分枝期)。一是理化誘控措施,使用
殺蟲燈、性誘劑、食誘劑、色板誘殺成蟲。
二是生物防治措施,選用蘇云金桿菌、球孢白僵菌、核型多角體病毒、金龜子綠僵菌、短穩桿菌等防治低齡幼蟲。
三是化學防治措施,選用四氯蟲酰胺、甲氨基阿維菌素苯甲酸鹽、乙基多殺菌素、噻蟲嗪等防治草地貪夜蛾、玉米螟、棉鈴蟲、蚜蟲、煙粉虱等害蟲;選用阿維菌素、唑螨酯等防治葉螨;選用吡唑醚菌酯、戊唑醇、寧南霉素等防治玉米、大豆地上部病害,可結合使用植物誘抗劑增強植株抗逆性。
(三)花期(玉米抽雄期)—成熟期。在前期防治的基礎上,根據玉米大斑病、小斑病、南方銹病、褐斑病、穗腐病、鉆蛀性害蟲,大豆銹病、葉斑病、豆莢螟、大豆食心蟲、甜菜夜蛾等發生情況,針對性選用枯草芽孢桿菌、井岡霉素、吡唑·氟環唑、苯甲·嘧菌酯、丙環·嘧菌酯等殺菌劑和氯蟲苯甲酰胺、高效氯氟氰菊酯、溴氰菊酯、噻蟲嗪等
殺蟲劑,合理混配噴施防治。防治蝸牛、蛞蝓類害蟲可撒施聚醛·甲萘威顆粒劑。防治點蜂緣蝽可用聚集信息素誘捕或噴施噻蟲嗪等藥劑。
注意事項
(一)大豆帶蔭蔽較重地塊,應采用植物生長調節劑控旺,可選用烯效唑、多效唑等在大豆分枝期噴施一次,嚴重地塊花期可加噴一次。
(二)采用植保無人飛機施藥時要注意添加沉降劑等助劑,畝施藥液量1.5升以上。在防治害蟲時,要抓住低齡幼蟲防控最佳時期,以保苗、保芯、保產為目標開展統防統治。收獲后及時進行秸稈粉碎或者打包處理,以減少田間病殘體和蟲源數量。
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