The red spots of Amaryllis vittata is caused by Stagonospora curtisii (Berk) Sacc. The pathogen can infect the leaves and flowerstalks of Amaryllis vittata.

• 病菌(Stagonospora curtisii)主要危害朱顶兰(Amaryllis vittata)叶片及花梗,其次危害鳞茎。