越冬黃瓜在結瓜初期易出現黃瓜生長的腐爛或壞死現象（特別是冬暖棚內靠近放風口下七
、八棵黃瓜及壓膜線或壓膜竹竿下方黃瓜發病更重），即瓜農常說的“爛頭頂”病
，輕者造成禿樁（無生長點），重(zhong)者(zhe)從(cong)蔓(man)頂(ding)向(xiang)下(xia)蔓(man)延(yan)造(zao)成(cheng)黃(huang)瓜(gua)莖(jing)蔓(man)腐(fu)爛(lan)死(si)棵(ke)，嚴(yan)重(zhong)影(ying)響(xiang)黃(huang)瓜(gua)產(chan)量(liang)，單(dan)獨(du)用(yong)藥(yao)防(fang)治(zhi)療(liao)效(xiao)不(bu)好(hao)
，給(gei)菜(cai)農(nong)造(zao)成(cheng)較(jiao)大(da)損(sun)失(shi)。據(ju)筆(bi)者(zhe)觀(guan)察(cha)，越(yue)冬(dong)黃(huang)瓜(gua)“爛頭頂”病與植株鈣營養不良和棚內滴水及病菌感染有關。防治時應采取綜合措施更有效。

早期補鈣：黃(huang)瓜(gua)對(dui)鈣(gai)的(de)吸(xi)收(shou)強(qiang)度(du)最(zui)大(da)值(zhi)在(zai)結(jie)瓜(gua)前(qian)甩(shuai)蔓(man)期(qi)。黃(huang)瓜(gua)初(chu)瓜(gua)期(qi)幼(you)瓜(gua)對(dui)鈣(gai)的(de)吸(xi)收(shou)強(qiang)度(du)大(da)
，對(dui)鈣(gai)的(de)需(xu)求(qiu)量(liang)增(zeng)加(jia)，而(er)使(shi)生(sheng)長(chang)點(dian)部(bu)位(wei)鈣(gai)供(gong)應(ying)不(bu)足(zu)表(biao)現(xian)缺(que)鈣(gai)症(zheng)狀(zhuang)。缺(que)鈣(gai)黃(huang)瓜(gua)整(zheng)株(zhu)矮(ai)化(hua)，節(jie)間(jian)短(duan)，尤(you)以(yi)頂(ding)端(duan)附(fu)近(jin)最(zui)為(wei)明(ming)顯(xian)，幼(you)葉(ye)小(xiao)，葉(ye)向(xiang)上(shang)卷(juan)曲(qu)
，後(hou)期(qi)這(zhe)些(xie)葉(ye)片(pian)從(cong)邊(bian)緣(yuan)向(xiang)內(nei)幹(gan)枯(ku)
，出(chu)現(xian)幼(you)葉(ye)葉(ye)緣(yuan)失(shi)綠(lv)
，生(sheng)長(chang)點(dian)死(si)亡(wang)。因(yin)此(ci)在(zai)越(yue)冬(dong)黃(huang)瓜(gua)吊(diao)蔓(man)後(hou)就(jiu)應(ying)進(jin)行(xing)補(bu)鈣(gai)。生(sheng)產(chan)中(zhong)在(zai)黃(huang)瓜(gua)開(kai)花(hua)前(qian)開(kai)始(shi)噴(pen)鈣(gai)，坐(zuo)瓜(gua)後(hou)再(zai)噴(pen)一(yi)次(ci)鈣(gai)肥(fei)的(de)方(fang)法(fa)，進(jin)行(xing)噴(pen)施(shi)鈣(gai)鎂(mei)葉(ye)麵(mian)肥(fei)或(huo)果(guo)蔬(shu)鈣(gai)等(deng)含(han)鈣(gai)肥(fei)料(liao)，每(mei)10~15天1次，連噴2~3次。

減少水珠滴到黃瓜上：yuedonghuangguajinrukaihuajieguachuqishiwaijiewenduyidi。weibaowenchangjianxiaotongfengliang，tongfengshaozhishipengneishiduxiangduijiaoda
，jiazhipengneiwaiwenchada
，pengneimoshangyishengshuizhu，shuizhuxiadihuidizaihuangguashengchangdianshang（風口下及壓膜線或壓膜竹竿下是易滴水區），shuidiwendudihuishishengchangdianshouhan，shijianyichangjiujianghuangguanenshaofushi，dishuishaodeshihouduochengxiannenyeganbianxianxiang，dishuiduozedaozhizhizhulantou。shengchanzhongweijianshaoshuizhudidaohuangguashang，kezaifengkouxiafangpingguayicengbomo
，fangzhipengmoshuidizhijiediluodaohuangguashengchangdian，haikejianshaotongfengshiqiliujiaohuanguokuaiduihuangguadeciji
；dongnuanpengneidishuiweidianwangwanghenguding
，kezaiyidishuichuguageguangkoupingbashuidijiezhu，fangdizhehuangguadingheyepian
，zheduijianshaopengneishidujiyemianjielujianqingfabinghenyouhaochu。

藥劑防治：缺鈣生長點部位抗病菌（特別是細菌性病害）侵染能力降低
，易被病菌（特別是細菌性病害）jinranerbingfalantoudingxianxiang，tongshidishuibuweidehuangguashengchangdianyeyizaobingjunweihailantou。weicijiehebugai，tiqianpenshinongyonglianmeisuhuozhongshengjunsujiabenmijiahuanzuodengfangxijunjizhenjunbingjunganran。shiyaoshizhuzhongpenzhizhuzhongshangbu。

ciwaizengshifushuyoujifeihuoshengwuyoujifei，caiyongpinghengpeifangshifei


，zengqiangzhizhukangxing。tongshishiyonggaozhiliangwudimo，binggaohaopengneiwenshiduguanli。lingwai
，kongzhihaohelidezhouyewenchayezhiguanzhongyao。