最(zui)近(jin)天(tian)氣(qi)連(lian)續(xu)高(gao)溫(wen)幹(gan)燥(zao),可(ke)忙(mang)壞(huai)了(le)曲(qu)周(zhou)縣(xian)大(da)河(he)道(dao)鄉(xiang)後(hou)老(lao)營(ying)村(cun)的(de)瓜(gua)農(nong)們(men)。這(zhe)裏(li)的(de)一(yi)部(bu)分(fen)西(xi)瓜(gua)出(chu)現(xian)了(le)一(yi)種(zhong)怪(guai)病(bing),瓜(gua)蔓(man)有(you)的(de)粗(cu)得(de)像(xiang)兩(liang)個(ge)瓜(gua)蔓(man)並(bing)在(zai)一(yi)塊(kuai),有(you)的(de)細(xi)得(de)兩(liang)個(ge)也(ye)趕(gan)不(bu)上(shang)一(yi)個(ge)正(zheng)常(chang)的(de)瓜(gua)蔓(man)。生病的西瓜藤、葉(ye)明(ming)顯(xian)比(bi)健(jian)康(kang)的(de)發(fa)黃(huang),葉(ye)子(zi)上(shang)麵(mian)布(bu)滿(man)黃(huang)色(se)小(xiao)花(hua)斑(ban),葉(ye)片(pian)比(bi)正(zheng)常(chang)的(de)葉(ye)要(yao)小(xiao)得(de)多(duo),有(you)的(de)結(jie)出(chu)來(lai)的(de)小(xiao)瓜(gua)表(biao)麵(mian)全(quan)是(shi)疙(ge)疙(ge)瘩(da)瘩(da),瓜(gua)農(nong)們(men)打(da)了(le)很(hen)多(duo)殺(sha)菌(jun)劑(ji)也(ye)不(bu)見(jian)好(hao)轉(zhuan),很(hen)是(shi)愁(chou)人(ren)!
其實,治這種病並不難,對症下藥是關鍵。這種病俗稱“花葉病”,有的叫“小葉病”,是由病毒引起的一種病害。與防治枯萎病、葉斑病的藥物不同,這類病害需要使用抗病毒藥物進行防治。移栽早期或發病初期使用30%病毒星可濕性粉劑400倍液或1.5%植病靈乳油1000倍液或20%鹽酸馬啉呱(病毒A)可濕性粉劑500倍液進行噴施可對該病起到一定抑製作用。如果發病植株已到晚期(出現臭果),或出現病害快速蔓延趨勢,則需要立即拔除所有病株,以防交叉感染。
name,zenmepanduannindexiguashibushihuanlebingdubingne?bingdubingyouhuayehejueyeliangzhongleixing。huayexingzhengzhuangzhuyaoshichuqigenbuyepianchuxianhuanglvxiangjiandehuaban,yemianaotubuping,xinshengyepianjixing、蔓的頂端節間皺縮變短;蕨葉型症狀主要表現為新生葉狹長、皺縮、扭曲、畸ji形xing。病bing毒du病bing有you一yi個ge共gong同tong的de特te征zheng就jiu是shi形xing成cheng畸ji形xing果guo,如ru果guo您nin發fa現xian坐zuo好hao的de西xi瓜gua上shang麵mian全quan是shi小xiao疙ge瘩da,那na麼me您nin就jiu需xu要yao注zhu意yi一yi下xia西xi瓜gua是shi不bu是shi得de了le病bing毒du病bing了le。這zhe種zhong病bing在zai高gao溫wen幹gan旱han的de時shi候hou特te別bie容rong易yi發fa生sheng,尤you其qi在zai今jin年nian華hua北bei平ping原yuan持chi續xu高gao溫wen幹gan旱han的de情qing況kuang下xia,瓜gua農nong們men更geng要yao重zhong視shi,提ti前qian做zuo好hao防fang治zhi工gong作zuo。
西xi瓜gua病bing毒du病bing其qi實shi並bing不bu可ke怕pa,因yin為wei病bing毒du想xiang要yao越yue冬dong必bi須xu依yi靠kao多duo年nian生sheng雜za草cao或huo西xi瓜gua種zhong子zi。隻zhi要yao控kong製zhi了le田tian間jian的de雜za草cao瘋feng長chang,做zuo好hao種zhong子zi消xiao毒du,病bing毒du病bing是shi完wan全quan可ke以yi避bi免mian的de。另ling外wai,病bing毒du病bing主zhu要yao通tong過guo飛fei虱shi、蚜蟲、葉蟬等昆蟲和雜草及病株汁液傳播。對此,第一,要及時防除飛虱、蚜蟲、葉蟬等害蟲,阻斷病害快速傳播的途徑,常見的方法可采用10%吡蟲啉可濕性粉劑1000倍液或10%抗虱丁可濕性粉劑1000beiyepenwu,qieduanchuandumeijie。dier,yaokongzhizacaodeshengchang,xiaomiebingduyuedongdezaiti。disan,zhengzhidachadeshihouyinggaixianzhengjiankangdezhizhu,zuihouzaizhenghuanbingzhizhu,yifangbinghaitongguorenweiyinsuchuanbo。lingwai,youyubingdubingchangyinfayixiliebingfazheng,yincizaifangzhibingdubingdetongshiyekepenshidakening、百菌清等廣譜性殺菌劑對蔓枯病、葉枯病、yibingdengtuchuanbinghaiqidaofangzhixiaoguo。ruogaowenganhantianqichixushijianguochang,xushishizaishangwuduitianjianjinxingpenwujiangwen,fangzhiyangguangguoqiangduiyepianzaochengdamianjizhuoshang。
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