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2024年大豆玉米带状复合种植病虫害防控技术方案

2024-03-14 08:54:36 来源:全国农业技术推广服务中心 阅读量:19356 评论

导读:重大病虫防治处置率达到90%以上,总体防治效果达到85%以上,重大病虫危害损失率控制在5%以内,力争玉米不减产,增收一季豆。

  【农机网 科技创新】 为做好大豆玉米带状复合种植模式下的病虫害防控工作,服务稳粮增油重点任务,制定本方案。
 
  一、防控目标
 
  重大病虫防治处置率达到90%以上,总体防治效果达到85%以上,重大病虫危害损失率控制在5%以内,力争玉米不减产,增收一季豆。
 
  二、防治策略
 
  坚持预防为主、综合防治的原则,以间(套)作期大豆玉米密植模式下主要病虫害协同防治为重点,综合应用健康栽培、理化诱控、生物防治和科学用药等技术措施,抓住病虫发生窗口期实施综合防治,合理利用高效植保器械,切实提高防治效果,降低病虫危害损失。
 
  三、防治对象
 
  (一)西南间(套)作种植模式区
 
  大豆:根腐病、锈病、病毒病、炭疽病,斜纹夜蛾、甜菜夜蛾、大豆蚜、豆秆黑潜蝇、稻绿蝽、豆荚螟、高隆象、地下害虫等;玉米:纹枯病、大斑病、灰斑病、茎腐病、穗腐病,草地贪夜蛾、玉米螟、粘虫、蚜虫、地下害虫等。
 
  (二)西北间作模式区
 
  大豆:根腐病、霜霉病、病毒病,棉铃虫、蚜虫、红蜘蛛、大豆食心虫、豆荚螟、地下害虫等;玉米:大斑病、茎腐病,棉铃虫、粘虫、玉米螟、双斑长跗萤叶甲、叶螨、地下害虫等。
 
  (三)黄淮海和长江中下游间作模式区
 
  大豆:根腐病、病毒病、拟茎点种腐(茎枯)病、炭疽病,地下害虫、烟粉虱、点蜂缘蝽、甜菜夜蛾、棉铃虫、豆秆黑潜蝇、大豆蚜、大豆食心虫、豆荚螟等;玉米:南方锈病、茎腐病、穗腐病、褐斑病、弯孢叶斑病、小斑病,玉米螟、棉铃虫、粘虫、桃蛀螟、蚜虫、蓟马等。
 
  四、全程综合防控技术
 
  加强田间调查监测,及时掌握病虫害发生动态,做到抓早治小。在病虫害防控关键时期,采用自走式喷杆喷雾机、植保无人飞机等喷施高效低风险药剂,提高防控效果。
 
  (一)播种期
 
  选用抗(耐)病虫品种,玉米选择耐密紧凑型、大豆选择耐阴性品种,合理密植。种子处理以防治大豆根腐病、拟茎点种腐病和玉米茎腐病、丝黑穗等土传种传病害,以及地下害虫、蚜虫、蓟马、叶甲等苗期害虫为主,选择含有精甲·咯菌腈、噻呋酰胺、吡唑醚菌酯、噻虫嗪、吡虫啉等成分的种衣剂。不同区域根据当地主要病虫种类选择相应的药剂。
 
  (二)苗期—玉米喇叭口期(大豆分枝期)
 
  一是理化诱控措施,在玉米螟、棉铃虫、斜纹夜蛾、甜菜夜蛾等成虫发生期使用杀虫灯、性诱剂、食诱剂诱杀。二是生物防治措施,选用苏云金杆菌、球孢白僵菌、核型多角体病毒、金龟子绿僵菌、短稳杆菌等生物制剂防治棉铃虫、斜纹夜蛾、甜菜夜蛾、豆卷叶螟等害虫。三是化学防治措施,选用四氯虫酰胺、甲氨基阿维菌素苯甲酸盐、乙基多杀菌素、茚虫威、噻虫嗪等杀虫剂防治甜菜夜蛾、斜纹夜蛾、蚜虫、烟粉虱等害虫;选用阿维菌素、唑螨酯、乙螨唑、哒螨灵等杀螨剂防治叶螨;选用吡唑醚菌酯、戊唑醇、香菇多糖、宁南霉素等杀菌剂,可结合使用植物诱抗剂,防治玉米、大豆地上部病害。选用烯效唑、多效唑等生长调节剂控旺,大豆带荫蔽较重地块,花期可加喷一次。
 
  (三)花期(玉米抽雄期)—成熟期
 
  根据玉米大小斑病、南方锈病、褐斑病、钻蛀性害虫,大豆锈病、叶斑病、豆荚螟、大豆食心虫、甜菜夜蛾等发生情况,针对性选用枯草芽孢杆菌、井冈霉素、吡唑·氟环唑、苯甲·嘧菌酯、丙环·嘧菌酯等杀菌剂和氯虫苯甲酰胺、高效氯氟氰菊酯、溴氰菊酯、噻虫嗪成分的杀虫剂喷施防治。防治蜗牛、蛞蝓类害虫可撒施四聚乙醛颗粒剂等。防治点蜂缘蝽可用聚集信息素诱捕或喷施噻虫嗪等药剂。采用植保无人飞机施药时要注意添加增效剂、沉降剂,保证每亩药液量。
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