mianyibingyinqidelanguoweihaixiabulaoguojiaoduo。chuqichuxianshuijinzhuangxiaoban,zhujiankuodachanshengbaisemianxuzhuangjunsi,guoshineibianhei,jiyituoluo。bingguoluodihou,yuchaoshiquanguofulanchanshengbaimei,zuihougansuo,chengweiheihesejiangguo。fabingchuqi,genjubingqing7~10天噴一次25%百菌清可濕性粉劑500倍液,或65%代森鋅可濕性粉劑500倍液,連噴2~3次。
軟ruan腐fu病bing引yin起qi的de爛lan果guo危wei害hai果guo實shi。受shou害hai果guo最zui初chu病bing斑ban呈cheng水shui浸jin狀zhuang暗an綠lv色se,後hou變bian暗an褐he色se,不bu久jiu內nei部bu果guo肉rou腐fu爛lan發fa臭chou。果guo皮pi變bian白bai,失shi水shui後hou幹gan縮suo,遇yu外wai力li脫tuo落luo。發fa病bing初chu期qi噴pen1∶0.5∶200的波爾多液,或新植黴素400倍液防治。
huimeibingyinqidelanguoyiqingguoranbingjiaozhong。bingbuchengshuijinzhuang,bingbanyuanxinghuojinbanyuanxing,anlvsezhihuibaise,bianruanfulanhou,qishangmishenglvsemeiceng,bingbankuozhandaoguoshide1/3~1/2時脫落,全果腐爛幹縮成僵果。可用75%百菌清可濕性粉劑500倍液或50%甲基托布津150克兌水75公斤噴霧。
炭tan疽ju病bing引yin起qi的de爛lan果guo多duo發fa生sheng在zai成cheng熟shu的de果guo實shi上shang,初chu期qi果guo實shi表biao皮pi上shang出chu現xian褐he色se或huo黑hei色se病bing斑ban,並bing呈cheng同tong心xin輪lun紋wen狀zhuang凹ao陷xian,嚴yan重zhong哩li整zheng個ge病bing果guo爛lan掉diao脫tuo落luo。發fa病bing初chu期qi及ji時shi噴pen灑sa80%代森鋅可濕性粉劑500倍液,或50%炭疽福鎂300~400倍液防治。
褐紋病引起的爛果初期為褐色近圓形病斑,稍凹陷,邊緣明顯,病果後期落地軟腐,或留在枝上呈幹腐狀僵果。藥劑防治可用65%福美鋅500倍液噴霧,7~10天噴一次。
zaoyibingyinqidelanguoguoshishouhaihouwangwangzaihuatuofujindeguomianchanshengtuoyuanxingaoxianban,anhese,biaomianchanshengheisemeiceng,guomianyikailie,yanzhongshituoluo。fabingchuqikeyong50%撲海因可濕性粉劑1000倍液噴霧,生長期每畝用46%百菌清煙熏劑2.50克在傍晚熏蒸。
晚wan疫yi病bing引yin起qi的de爛lan果guo果guo實shi染ran病bing初chu期qi,果guo麵mian產chan生sheng水shui浸jin狀zhuang暗an綠lv色se近jin圓yuan形xing汙wu斑ban,擴kuo大da後hou中zhong央yang呈cheng暗an褐he色se至zhi棕zong褐he色se,病bing果guo不bu變bian軟ruan,不bu凹ao陷xian,無wu輪lun紋wen,潮chao濕shi時shi,在zai感gan病bing部bu位wei產chan生sheng白bai色se黴mei層ceng。發fa現xian中zhong心xin病bing株zhu後hou,及ji時shi噴pen灑sa25%果霜靈可濕性粉劑500倍液,隔6~7天噴一次,連噴3~4次,遇雨應補噴。
瘡chuang痂jia病bing引yin起qi的de爛lan果guo果guo實shi發fa病bing時shi,初chu期qi出chu現xian黑hei色se或huo褐he色se隆long起qi的de小xiao點dian,或huo具ju有you水shui浸jin狀zhuang邊bian緣yuan的de泡pao疹zhen,後hou逐zhu漸jian擴kuo大da為wei圓yuan形xing或huo長chang圓yuan形xing黑hei色se瘡chuang痂jia斑ban,邊bian緣yuan有you裂lie口kou,潮chao濕shi時shi有you菌jun液ye溢yi出chu。發fa現xian病bing株zhu後hou及ji時shi噴pen施shi30%DT殺菌劑枷倍液,或77%可殺得可濕性粉劑500倍液防治。
日灼病引起的爛果發病原因是局部受熱,溫度過高,灼傷表皮細胞引起的。防治方法主要是合理密植,加強田間管理,促苗早發、早封壟。
臍qi腐fu病bing引yin起qi的de爛lan果guo初chu期qi幼you果guo臍qi部bu呈cheng現xian水shui浸jin狀zhuang病bing斑ban,後hou逐zhu漸jian擴kuo大da,病bing部bu顏yan色se由you暗an綠lv色se變bian為wei暗an褐he色se。引yin起qi臍qi腐fu病bing的de原yuan因yin主zhu要yao是shi水shui分fen供gong應ying失shi調tiao,前qian期qi水shui分fen供gong應ying充chong足zu,後hou期qi缺que水shui造zao成cheng的de。防fang治zhi方fang法fa是shi:保證水分供應均勻,並在早晚進行,掌握的原則是“見濕見幹”,切忌大水漫灌。
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