松果菊的病害和防治方法

植物图片 2021-04-09 17:14

松果菊虽然对生活环境的要求并不高，但是养护过程中难免会出现突发状况，病害就是其中一种，下面小编就针对松果菊的病害和大家交流一下。

松果菊的病害：根腐病

症状

也叫做黑茎病，松果菊染病初期，植株上部的叶片会出现萎缩卷曲的情况，甚至整株的叶片都干枯掉落。

病情严重时，根部变成褐色，直到全株死亡。

防治方法

采用40％敌磺钠可湿性粉剂1000倍液喷雾或浇灌病株，每隔3—5天喷施一次，喷施2—3次即可见效。

松果菊的病害：黄叶病

症状

松果菊感染黄叶病之后，第一年不会出现病症，到第二年植株才会受到影响。

松果菊感染黄叶病后，植株的叶色发黄，有的卷曲，导致植株生长缓慢，变得矮小，花朵出现畸形，颜色变浅。

防治方法

通常喷施50%多菌灵可湿性粉剂500倍液或75%百菌清可湿性粉剂600倍液，每隔7—10天喷施一次，连续喷施2—3次。

当发现病植株大部分枯黄时，要及时拔除，并集中销毁，避免病情扩散。

松果菊的病害：花叶病

症状

感染花叶病之后，松果菊的幼叶会出现浓绿与淡绿相间的花纹，变成花叶。

成株发病时新叶呈黄绿相嵌状花叶，病叶变小，略皱缩，严重的时候叶片反卷，病株下部的叶片逐渐黄枯。

防治方法

发病初期喷5%菌毒清可湿性粉剂300倍液，或3%三氮唑核苷水剂(爱诺倍达)500倍液，或0.5%抗毒剂1号水剂250—300倍液，或20%毒克星可湿性粉剂500倍液，或20%盐酸吗啉胍·铜可湿性粉剂500倍液，或20%病毒丹可湿性粉剂500倍液。

另外混加硫酸锌25至30克，硼肥20克，天然芸苔素5克，配合杀蚜剂每5至7天喷一次，连续2至3次。

及时拔除患病的植株，并集中销毁，防止病情扩散。

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