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黄瓜枯萎病症状及防治

发布日期: 2017-04-20 15:42

huangguakuweibingweizhenjunxingbinghai,youchengweinianbing、siyangbing、mangebing,shigualeishucaidezhongyaobinghai,benbingjunzhuanhuaxingjinqinranhuangguahetiangua(xianggua),fashengpubian,fabinglvgao,huimiexingqiang。jianchan30%~50%,zhongzhejueshou。

yi、weihaizhengzhuang

dg真人游戏1.youmiaoziyexianbianhuang、weinianhuoquanzhukuwei,jingjibubianheyisuodaofu,weiguanshubianhesehuochenglikuzhuang。

2.kaihuajieguohouluxufabing,beihaizhuzuichubiaoxianweibufenyepianhuozhizhudeyiceyepian,zhongwuweinianxiachui,siqueshuizhuang,danweinianyezaowanhuifu,houweinianyepianbuduanzengduo,zhujianbianjiquanzhu,zhizhengzhukusi。chengzhuqifabing,xiabuyepianyemaizhujiantuilv,yepianchengzhangzhuanghuangsebingban,huangyezhujianxiangzhizhushangbumanyanfazhan,quanzhuyepianzhongwuchengxianweinianzhuang,zaowanhuifuzhengchang,fanfushurihou,zhengzhuyepianweinianxiachui,zhizhigankusiwang。

dg真人游戏hengqiejingjibu,kekandaoweiguanshubianhuanghese,zheishikuweibingdezhongyaotezheng。

er、fashengtedian

zuishibingjunshengzhangdewendufanweishi24~28℃,zuigao34℃、zuidi4℃。turanghanshuiliangda、kongqixiangduishidugao,fabingzuikuai。kongqixiangduishidu90%yishangyifabing。yangmiaolaohua,lianzuodi,youjifeibufushu,turangguofenganhanhuopaishuibuliang,turangpiansuan,shifabingdezhuyaotiaojian。

san、fangzhifangfa

1.zhongzixiaoduyong55℃dewenshuijinzhong10fenzhong;huozai70℃dehengwentiaojianxia,jiangzhongzichuli72xiaoshi;huo50%duojunling500beiyejinzhong1xiaoshi,laochuhouchongjingcuiya。

dg真人游戏2.nongyefangzhi(1)、xuanyongkangbingpinzhong: yuhebenkezuowulunzuo,keyijianshaotianjianhanjunliang。yumiaoshi,duimiaochuangtujinxingxiaohuachuli,huohuanshangwujunxintu,peiyuwubingzhuangmiao。shirudeyoujifeiyaochongfenfushu。zaijieguahou,yaoshidangzengjiajiaoshuidecishuhejiaoshuiliang,danqiejidashuimanguan。zaixiajidezhongwuqianhoubuyaojiaoshui。duozhonggeng,keyitigaoturangdetouqixing,shizhizhugenxizhuozhuang,yitigaokangbingnengli,danyaozhuyijianshaoshangkou。(2)yangeturangchuli: shangchagualayanghou,lijijinxingdi1cishenfanliangshai,fanqianmei10mipengzhangyongshengshihui1dai。zaidingzhiqian20tianjinxingdi2cishenfan,mei8mipengzhangsa0.5qianke75%baijunqingkeshixingfenjijinxingturangmiejun。(3)yingyangboyuzhuangmiao: yongzhidaihuosuliaobeiyumiao,dingzhishibushanggen,erqiehuanmiaokuai,tigaohuangguamiaoqidekangbingnengli。(4)caiyongjiajiefangbing: yibancaiyongheizinanguazuozhenmujiajiehuanggua。dingzhishi,huangguayunanguajiajiedejiekouchuxujulidimianyouyidingdegaodu,yibimianhuangguajiechudimianzaizhangxingen,shiqujiajiefangbingdezuoyong

3.yaojifangzhi。fabingqianhuofabingchuqi,yong50%duojunlingkeshixingfenji500beiye,meizhuguanduihaodeyaoye0.3~0.5sheng;huo12.5%zengxiaoduojunlingnongkerongji200~300beiye,meizhu100haosheng,ge10tianhouzaiguan1ci,lianxufangzhi2~3ci,yidingyaozaofang、zaozhi,fouzexiaoguobumingxian。

ciwai,yudingzhihoukaishipensayetifashengchandexibaofenliesu500~600beiye,ge7~10tian1ci,gongpen3~4ci,kemingxiantigaokangxing,runengjiaru0.2%linsuanerqingjia,huo0.5%niaosuhuopensapenshibaomeihaoshengjiashui11~12sheng、huozhibaosu7500beiyexiaoguogenghao。

奇葩图片

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