julejie
，shuidaoyejiankubingyichengweijinnianlaiwoshengzajiaoxiandaohechangguizhongxiandaozhonghouqizhongyaodeyebubinghai。gaibingzhuyaoweihaiyepian，yibancongyejianhuoyeyuankaishifabing
，shaoshucongyepianzhongyangkaishi，ranhouyanyeyuanhuoyepianzhongbuxiangxiakuozhan，zaiyeyuanyicehuoliangceyijiyepianzhongyangxingchengchangtiaozhuangbingban，bingbanchuweihuihese，zuihoubianchengkubaise，zaibingjianjiaojiechukejianhesetiaowen，bingbuyisuiliechengtiao，fabingyanzhongdequanyekusi
，kezaochengshuidaojieshilvheqianlizhongxiajiang
，jianchanjin20%。

該病病菌主要以分生孢子器在病葉和病稻種穎殼內越冬。落在田中的病殘體、病稻種與寄生在無芒稗
、西來稗
、雙穗雀稗
、狗尾草、lishihedenghebenkezacaoshangdebingjunshichuqinranyuan，laobingquyibingcantiweizhuyaochuqinranyuan。daozhongdaijunlvsuidi，dantaxiedaidebingjunshizaochengxinbingqufabingdezhongyaobingyuan。gaibingdaduozaishuidaobajieqizhiyunsuiqikaishifasheng，chousuiqibinghaixunsukuozhan，zhiguanjianghouqiquyuwending。shuidaoyunsuizhiguanjiangqi，wenduzai25-28℃
，duoyuheduotaifengtianqiyifabing。baofengyushibinghailiuxingdeguanjianyinsu。yibanzajiaodaofabingbichangguixiandaozhong，jingdaojinuodaohenshaofabing。daojimachangjueweihaidetiankuaifabingzhong。duoshi
、偏施
、遲施氮肥有利於發病
，增施矽
、鉀、鋅、硼等肥料有一定的控製病害的作用；長期灌深水
、栽插密度過大，均會加重病情。

 

水shui稻dao葉ye尖jian枯ku病bing與yu白bai葉ye枯ku病bing的de症zheng狀zhuang相xiang似si，在zai田tian間jian極ji易yi混hun淆xiao
，應ying辨bian明ming病bing因yin後hou對dui症zheng下xia藥yao。多duo菌jun靈ling和he三san唑zuo酮tong對dui該gai病bing有you較jiao好hao防fang效xiao。預yu防fang該gai病bing，可ke以yi從cong水shui稻dao分fen蘖nie盛sheng末mo期qi開kai始shi結jie合he防fang治zhi其qi他ta病bing蟲chong害hai噴pen藥yao防fang治zhi2-3次，每次每畝用40%多菌靈膠懸劑40毫升或禾枯靈（40%多·酮可濕性粉劑

，含多菌靈35%、三唑酮5%，60-75克，加水60公斤噴霧。播前用50%多菌靈可濕性粉劑或50%甲基硫菌靈可濕性粉劑250-500倍液浸種24-48小時，或者用40%禾枯靈可濕性超微粉250倍液浸種24小時，也有一定的防病效果。