jinqixihululanjingxianxiangyanzhong,zhuyaoshiyouliangzhongbinghaiyinqi。yishimankubing。bingjunzhuyaocongxihuludejingjiechuqinru,bingbuchuchenganhese,houzhujianbianchengheise,bingbanchuyiliekou,liuchubaisejiaozhuangwu,houqibingjinggansuo,zongliesiluanmazhuang。二是軟腐病。多從西葫蘆的根頸部染病,莖蔓先呈水漬狀,後逐漸變軟,病部凹陷,內部組織腐爛,形成灰褐色黏稠狀物,有惡臭味。
針zhen對dui這zhe兩liang種zhong病bing害hai造zao成cheng的de西xi葫hu蘆lu爛lan莖jing,首shou先xian要yao避bi免mian棚peng內nei高gao溫wen高gao濕shi。西xi葫hu蘆lu蔓man枯ku病bing及ji細xi菌jun性xing軟ruan腐fu病bing在zai高gao溫wen高gao濕shi環huan境jing下xia發fa病bing重zhong。棚peng室shi管guan理li應ying注zhu意yi加jia強qiang通tong風feng降jiang溫wen,白bai天tian棚peng溫wen控kong製zhi在zai23℃左右,夜間控製在13℃左右。其次要保護好植株傷口。避免在棚內濕度大時疏葉、摘瓜及打杈,並使用琥膠肥酸銅等銅製劑塗抹傷口。再次要做好藥劑防治。對蔓枯病,可以用25%咪鮮胺乳油1500倍液或阿米妙收325克/升苯甲·嘧菌酯懸浮劑1000倍液噴霧防治。對細菌性軟腐病,可以用72%農用硫酸鏈黴素可溶性粉劑(1500倍液)加30%琥膠肥酸銅可濕性粉劑(500倍液)噴霧防治,每隔5~7天一次,連續防治2~3次。
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