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莲藕褐班病的发生与防治

发布日期: 2017-08-17 17:46

dg真人游戏hebanbingshilianoudezhuyaobinghai,fenbuguangfan,chun、xia、qiusanjidoukefabing,yibanbingzhuzhan30%~50%,yanzhongshifabinglvkeda80%yishang,xianzhuyingxianglianouchanlianghezhiliang。

1.zhengzhuangzheizhongbingzhuyaoweihailianoudeyepianheyebing。yepianranbingchuqichanshenghelvsexiaobandian,yihoukuozhanchenghonghesezhianhesebuguizezhiduojiaoxinghuaisibingban,waiweichangyouhuangseyunquan,daxiao2~10haomi,bingbanchangyoutongxinlunwen,houqibingbanchangxianghuhuihechengdadebankuai,bianheganku。ruoyebingganbing,yizheduanxiachui。kongqishidudashibingbanbiaomianhuichanshenghuihesexishumeiceng。

2.fabingguilvbingyuansuibingcanzuzhiyuedong。wendu、shidutiaojianshiyishichanshengfenshengbaozi,xingchengchuqinran。fabinghouchanshengfenshengbaozizaiqinran。

3.fangzhifangfa①nongyefangzhi: jiehedongqiangecha,chediqinglibingcanlaoye,jizhongfensuioufei,jianshaotianjianjunyuan;jiaqiangfeishuiguanli,binghaichangfaquyaozengshilinjiafeihexinfei,shishishidupaishuishaitian,cujingenxishengzhang,zengqiangzhizhukangbingnengli。②yaojifangzhi: fabingchuqikexuanyong50%dijunlingkeshixingfenji500beiyehuo40%fuxingruyou5000beiye,yekeyong70%jiajituobujinkeshixingfenji600beiyehuo40%deyidaowenjingkeshixingfenji600beiyepenwu,7~15tianpen1ci,lianpen2~4ci。

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