華南、江南、西南、changjiangzhongxiayoudaoquzhongdianfangzhibaibeifeishihehefeishi,shuidaoyunsuiqianzhuzhongfahuitiandizirankonghaihezhizhubuchangzuoyong,jianshaoyongyao。yaojifangzhizhongdianzaishuidaoshengchangzhonghouqi,fangzhizhibiaoweiyunsuichousuiqibaicongchongliang1000頭以上、雜交稻穗期百叢蟲量1500頭(tou)以(yi)上(shang),雙(shuang)季(ji)晚(wan)稻(dao)和(he)單(dan)季(ji)稻(dao)注(zhu)意(yi)壓(ya)前(qian)控(kong)後(hou)。優(you)先(xian)選(xuan)用(yong)對(dui)天(tian)敵(di)相(xiang)對(dui)安(an)全(quan)的(de)藥(yao)劑(ji)品(pin)種(zhong),於(yu)低(di)齡(ling)若(ruo)蟲(chong)高(gao)峰(feng)期(qi)對(dui)莖(jing)基(ji)部(bu)粗(cu)水(shui)噴(pen)霧(wu)施(shi)藥(yao),提(ti)倡(chang)使(shi)用(yong)高(gao)含(han)量(liang)單(dan)劑(ji),避(bi)免(mian)使(shi)用(yong)低(di)含(han)量(liang)複(fu)配(pei)劑(ji)。防(fang)治(zhi)稻(dao)飛(fei)虱(shi)的(de)藥(yao)劑(ji)可(ke)選(xuan)用(yong)醚(mi)菊(ju)酯(zhi)、噻嗪酮、吡蚜酮、烯啶蟲胺、吡蟲啉(不用於褐飛虱)、異丙威。
稻縱卷葉螟
zhongdianzaishuidaoshengchangzhonghouqifangzhizhuhaidai,luanqirengongshifangdaomingchiyanfengyadizhongqunshuliang,luanfuhuagaofengqizhidilingyouchonggaofengqiyouxianxuanyongsuyunjinganjundengshengwunongyaofangzhi,xishuipenwushiyao,fangzhizhibiaoweibaicongshuidaoyoushuyejian50個。可以選用氯蟲苯甲酰胺、阿維菌素、甲氨基阿維菌素、茚蟲威、呋喃蟲酰肼、丙溴磷等藥劑。
螟蟲
因地製宜采取非化學防治措施,春季越冬代螟蟲化蛹期及雙季稻區早稻收割後翻耕灌水漚田,降低蟲源基數;gedaieqiyingyongkunchongxingxinxisuyoushachengchong,luanqishifangdaomingchiyanfeng,youchongqiyingyongsuyunjinganjunfangzhi。yaojifangzhizhongdianzaishuidaofennieqihepokouchousuiqi,fangzhizaochengkuxinhebaisui。fangzhierhuaming,fennieqizaikuqiaozhulvdadao3%時施藥,穗期在卵孵化高峰期施藥,重點防治上代殘存量大、當代螟卵盛孵期與水稻破口抽穗期相吻合的稻田。防治三化螟,在水稻破口抽穗初期施藥,重點防治每畝卵塊數達到40塊的稻田。
稻瘟病
重(zhong)點(dian)落(luo)實(shi)預(yu)防(fang)措(cuo)施(shi),在(zai)水(shui)稻(dao)分(fen)蘖(nie)期(qi)至(zhi)破(po)口(kou)抽(chou)穗(sui)期(qi)施(shi)藥(yao)預(yu)防(fang)葉(ye)瘟(wen)和(he)穗(sui)瘟(wen)。種(zhong)植(zhi)抗(kang)病(bing)品(pin)種(zhong),實(shi)行(xing)品(pin)種(zhong)多(duo)樣(yang)化(hua)種(zhong)植(zhi),搞(gao)好(hao)種(zhong)子(zi)消(xiao)毒(du),避(bi)免(mian)過(guo)量(liang)和(he)過(guo)遲(chi)施(shi)用(yong)氮(dan)肥(fei)。常(chang)發(fa)區(qu)秧(yang)苗(miao)帶(dai)藥(yao)移(yi)栽(zai),分(fen)蘖(nie)期(qi)田(tian)間(jian)出(chu)現(xian)急(ji)性(xing)病(bing)斑(ban)或(huo)發(fa)病(bing)中(zhong)心(xin)時(shi)施(shi)藥(yao)控(kong)製(zhi)葉(ye)瘟(wen),破(po)口(kou)抽(chou)穗(sui)初(chu)期(qi)施(shi)藥(yao)預(yu)防(fang)穗(sui)瘟(wen),均(jun)勻(yun)噴(pen)施(shi)井(jing)·蠟質芽孢杆菌或枯草芽孢杆菌或嘧肽黴素或春雷黴素,齊穗時再噴1次,對稻瘟病有良好的預防效果。還可以選用三環唑、咪鮮胺、氟環唑、氯啶菌酯等藥劑。提倡使用高含量單劑,避免使用低含量複配劑。
紋枯病
加強肥水管理,搞好健身栽培,分蘖末期曬田。藥劑防治重點在水稻分蘖末期至孕穗抽穗期,當田間病叢率達到20%-30%時施藥防治。可選用申嗪黴素、井岡黴素、噻呋酰胺、肟菌酯·戊唑醇、烯肟菌胺·戊唑醇、氟環唑等藥劑。
南方水稻黑條矮縮病
采取“抓秧田保大田、抓前期保後期”的“治蟲防病”策略,在單季稻和晚稻秧田期和本田初期,重點落實“藥劑拌(浸)種、集中育秧、防蟲網或無紡布防護育秧、早防飛虱、拔除病株”等措施。用寧南黴素等抗病毒劑與殺蟲劑協調使用可預防黑條矮縮病。
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