目前水稻處於灌漿期，發現穗部有少量稻殼發紅。出現這種現象，是發生了藥害，還是天氣原因引起的？像這種情況是否有藥治？

近年來，稻穗上部分穎花穎殼變褐紅色
、changmeidengxianxiang，zaishengchanshangfashenghenpubian，bufentiankuaifashengyanzhong。tongchangyingkefahongdeyinghuanengzhengchangguanjiangjieshi，duizuizhongchanliangyingxiangbutaida。juyouguanzhuanjiafenxi

，chuxianzhezhongxianxiang，zhuyaoshishuidaochousuiqizhiguanjiangchuqiyinyutianjiaoduo，yingkeshoujixiesunshanghuotianjiandaofeishicixiweihaizaochengde。duanxinzhongsuoshuodedaokefahongdexianxiang
，yinggaishizhizhezhongxianxiang

，fashengyanzhongshi，keyikaolvpenshimixianan
、甲基硫菌靈
、堿式硫酸銅（銅高尚）等藥防治。

井岡黴素
、毒死蜱等藥使用不當，如藥液濃度過大、yongyaoliangguodadeng
，kenengfashengyaohai
，zhishuidaoyingkeshangchanshenghehongsebandengzhengzhuang。fashengyaohaishi，tongchangzhengsuihuosuizimouyibuweidedabufenyinghuayingkedoushouhai。jinyoushaoshuyingkefahongdeyinghuajianzazaijiankangyinghuazhijian，yibanbushiyouyaohaiyinqide。

提示：所有可能引起水稻穎花退化和影響水稻授粉受精
、灌漿結實
，引起結實率下降的因素，如天氣、藥害、營ying養yang不bu良liang等deng，均jun可ke能neng造zao成cheng稻dao穗sui上shang部bu分fen穎ying花hua退tui化hua或huo不bu能neng灌guan漿jiang結jie實shi而er成cheng為wei秕bi粒li。這zhe些xie穎ying花hua穎ying殼ke容rong易yi變bian成cheng黑hei褐he色se。發fa現xian後hou沒mei有you辦ban法fa讓rang這zhe些xie穎ying花hua恢hui複fu結jie實shi。