suizherizhaoshijianbianduan,tianqiwendujiangdi,dapengtongfengshijianyezhujiansuoduan,pengneideshiduzengda,erdouleishucaiduohua,huaqishuaibaihourongyiqinranhuimeibing,youqishiyudaolianyintianshi,douleishucaihuimeibinghuiyanzhongfasheng,yinciyaozhuyitizaoyufang。
當(dang)豆(dou)類(lei)蔬(shu)菜(cai)進(jin)入(ru)開(kai)花(hua)結(jie)莢(jia)期(qi)後(hou),大(da)量(liang)的(de)殘(can)花(hua)會(hui)粘(zhan)連(lian)在(zai)豆(dou)莢(jia)上(shang),而(er)現(xian)在(zai)多(duo)數(shu)菜(cai)農(nong)認(ren)為(wei)現(xian)在(zai)棚(peng)內(nei)灰(hui)黴(mei)病(bing)極(ji)少(shao)發(fa)生(sheng),所(suo)以(yi)沒(mei)有(you)注(zhu)意(yi)預(yu)防(fang),這(zhe)樣(yang)這(zhe)些(xie)殘(can)花(hua)的(de)存(cun)在(zai)就(jiu)為(wei)後(hou)期(qi)灰(hui)黴(mei)病(bing)的(de)大(da)麵(mian)積(ji)發(fa)生(sheng)埋(mai)下(xia)了(le)隱(yin)患(huan),導(dao)致(zhi)爛(lan)莢(jia)現(xian)象(xiang)發(fa)生(sheng)。像(xiang)殘(can)花(hua)較(jiao)易(yi)從(cong)莢(jia)果(guo)上(shang)脫(tuo)落(luo)的(de)架(jia)豆(dou)、芸yun豆dou等deng,菜cai農nong可ke以yi通tong過guo晃huang棵ke的de方fang式shi將jiang殘can花hua除chu去qu,但dan要yao注zhu意yi將jiang落luo在zai葉ye腋ye間jian或huo莖jing蔓man上shang的de殘can花hua拾shi除chu,以yi防fang灰hui黴mei病bing侵qin染ran殘can花hua後hou,連lian帶dai危wei害hai莖jing蔓man。而er像xiang油you豆dou,由you於yu花hua瓣ban較jiao黏nian,不bu容rong易yi從cong莢jia果guo上shang脫tuo落luo,晃huang棵ke不bu能neng將jiang殘can花hua從cong植zhi株zhu上shang晃huang落luo,菜cai農nong可ke以yi通tong過guo拾shi花hua的de方fang法fa將jiang油you豆dou上shang的de殘can花hua除chu去qu,從cong而er避bi免mian灰hui黴mei病bing的de侵qin染ran造zao成cheng爛lan莢jia。
豆dou類lei蔬shu菜cai進jin入ru生sheng長chang後hou期qi,下xia部bu的de老lao葉ye衰shuai敗bai嚴yan重zhong,也ye容rong易yi感gan染ran灰hui黴mei病bing,因yin此ci也ye要yao注zhu意yi及ji時shi疏shu除chu。當dang灰hui黴mei病bing發fa生sheng嚴yan重zhong時shi,菜cai農nong可ke以yi使shi用yong撲pu海hai因yin1200倍液進行預防;也可按照每畝使用菌核淨150-200克進行煙霧熏棚防治,但熏棚時間不可過長,時間以不超過8小時為宜,用藥量越大,熏棚時間應越短。
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