万年青(Rohdea Japoniza(Thunb.)Roth.)Omoto Nipponlily Colletonrichum montemarinii Togn.var.rohdeae Tray.(炭疽病) 症状:为害叶片,主要发生在叶的尖端,起初形成许多黄白色的圆形小斑,也有椭圆形,边缘紫褐色,随后斑点扩大,彼此愈合,并由于多次扩展,而在大块的病斑上形成多层次焦褐色输环,形如云纹状,严重的病斑可占叶面的一半以上。最后,病斑上产生许多聚集似虫粪状的黑色点状物,即病原菌的分生孢子盘,分生孢子盘生于叶的两面。 Evergreen (Rohdea Japoniza (Thunb.) Roth.) Omoto Nipponlily Colletonrichum montemarinii Togn.var.rohdeae Tray. (Anthrax) Symptoms: Harmful leaves, mainly occurring at the tip of leaves, initially forming many yellowish- Oval, edge purple brown, then the spots expand, heal each other, and due to multiple expansion, and in the formation of multi-level lesion large coke ring, shaped like cloud-like, severe lesions can account for the foliage More than half. Finally, there are many spots on the lesion that gather like a worm-feces-like black spot, the pathogen’s conidia disk, which is bilaterally flanked by leaves.