如何快速高效解除青(qing)菜霜(shuang)霉(mei)病(bing)？青(qing)菜霜(shuang)霉(mei)病(bing)在整個青(qing)菜生長過程中，均會引(yin)發此病(bing)害，農業人(ren)員應及時選用(yong)科學藥劑防治青(qing)菜霜(shuang)霉(mei)病(bing)。

青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)會導(dao)致(zhi)(zhi)青(qing)(qing)菜(cai)(cai)(cai)的(de)葉(xie)(xie)片(pian)漸(jian)漸(jian)枯死(si)，甚(shen)至(zhi)青(qing)(qing)菜(cai)(cai)(cai)花序肥(fei)腫變成畸(ji)形。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)不(bu)(bu)僅危害(hai)(hai)青(qing)(qing)菜(cai)(cai)(cai)的(de)葉(xie)(xie)片(pian)，同時還(huan)會危害(hai)(hai)青(qing)(qing)菜(cai)(cai)(cai)的(de)葉(xie)(xie)片(pian)、莖(jing)、花和(he)莢果。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)是(shi)在被害(hai)(hai)葉(xie)(xie)片(pian)正面(mian)(mian)初生(sheng)淡(dan)黃(huang)色不(bu)(bu)明顯的(de)病(bing)(bing)(bing)(bing)斑(ban)(ban)，呈多角形，葉(xie)(xie)背(bei)病(bing)(bing)(bing)(bing)部上(shang)長出(chu)白色的(de)霜(shuang)狀霉(mei)(mei)(mei)(mei)(mei)，甚(shen)至(zhi)不(bu)(bu)能結實(shi)或結實(shi)不(bu)(bu)良，導(dao)致(zhi)(zhi)青(qing)(qing)菜(cai)(cai)(cai)菜(cai)(cai)(cai)籽(zi)產(chan)量(liang)和(he)質量(liang)下降。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)是(shi)由真菌中的(de)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)菌引起(qi)的(de)植物病(bing)(bing)(bing)(bing)害(hai)(hai)。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)發(fa)(fa)病(bing)(bing)(bing)(bing)初期(qi)在葉(xie)(xie)面(mian)(mian)形成淺黃(huang)色近圓(yuan)形至(zhi)多角形病(bing)(bing)(bing)(bing)斑(ban)(ban)，容易并發(fa)(fa)角斑(ban)(ban)病(bing)(bing)(bing)(bing)，空氣(qi)潮濕時葉(xie)(xie)背(bei)產(chan)生(sheng)霜(shuang)狀霉(mei)(mei)(mei)(mei)(mei)層，有時可蔓延到葉(xie)(xie)面(mian)(mian)。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)后(hou)期(qi)病(bing)(bing)(bing)(bing)斑(ban)(ban)枯死(si)連(lian)片(pian)，呈黃(huang)褐色，嚴重時全部外葉(xie)(xie)枯黃(huang)死(si)亡。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)的(de)病(bing)(bing)(bing)(bing)菌以(yi)菌絲在種子或秋冬季生(sheng)菜(cai)(cai)(cai)上(shang)為害(hai)(hai)越(yue)冬，也可以(yi)卵孢子在病(bing)(bing)(bing)(bing)殘(can)體上(shang)越(yue)冬。主要通過氣(qi)流、澆水(shui)、農事及(ji)昆(kun)蟲傳播(bo)。青(qing)(qing)菜(cai)(cai)(cai)霜(shuang)霉(mei)(mei)(mei)(mei)(mei)病(bing)(bing)(bing)(bing)的(de)病(bing)(bing)(bing)(bing)菌孢子萌發(fa)(fa)溫度為6-10℃適宜侵染溫度15-17℃，田間種植過密、土壤濕度大、排(pai)水(shui)不(bu)(bu)良等(deng)容易發(fa)(fa)病(bing)(bing)(bing)(bing)。

如(ru)何快速高效(xiao)解除青(qing)菜(cai)(cai)霜(shuang)霉病(bing)(bing)？農業(ye)人員及(ji)時(shi)選(xuan)(xuan)用(yong)(yong)科學藥(yao)(yao)(yao)劑進行防(fang)治(zhi)青(qing)菜(cai)(cai)霜(shuang)霉病(bing)(bing)，為了(le)迅速防(fang)治(zhi)應選(xuan)(xuan)用(yong)(yong)合適(shi)的藥(yao)(yao)(yao)劑。可(ke)以(yi)(yi)選(xuan)(xuan)用(yong)(yong)藥(yao)(yao)(yao)劑及(ji)時(shi)的防(fang)治(zhi)青(qing)菜(cai)(cai)霜(shuang)霉病(bing)(bing)，選(xuan)(xuan)用(yong)(yong)藥(yao)(yao)(yao)劑噴灑凱(kai)(kai)霜(shuang)稀(xi)釋(shi)600倍液噴施(shi)，每隔6天(tian)用(yong)(yong)藥(yao)(yao)(yao)一(yi)次(ci)(ci)；在(zai)青(qing)菜(cai)(cai)霜(shuang)霉病(bing)(bing)輕微發病(bing)(bing)時(shi)，按(an)照400-600倍液HILOT凱(kai)(kai)霜(shuang)稀(xi)釋(shi)噴霧(wu)，每隔5-7天(tian)用(yong)(yong)藥(yao)(yao)(yao)一(yi)次(ci)(ci)；病(bing)(bing)情(qing)較重時(shi)，按(an)100-300倍噴施(shi)凱(kai)(kai)霜(shuang)，每隔3天(tian)用(yong)(yong)藥(yao)(yao)(yao)一(yi)次(ci)(ci)，具(ju)體施(shi)藥(yao)(yao)(yao)次(ci)(ci)數應根(gen)據青(qing)菜(cai)(cai)霜(shuang)霉病(bing)(bing)的病(bing)(bing)情(qing)而(er)定。農業(ye)人員在(zai)青(qing)菜(cai)(cai)霜(shuang)霉病(bing)(bing)發病(bing)(bing)初期適(shi)當控制澆水(shui)，保護地(di)栽(zai)培注意增強通(tong)風(feng)，降(jiang)低空氣(qi)濕度。在(zai)青(qing)菜(cai)(cai)收獲后徹底清除病(bing)(bing)株落(luo)葉，可(ke)以(yi)(yi)有(you)效(xiao)的減少(shao)病(bing)(bing)害。