From 2008 to 2017, Korean azalea (
Figures & Tables
Fig. 1. Angular leaf spot of var. infected with . (A) Heavy infections detracting from the beauty of the plant. (B) Close-up symptoms in the later stage of disease development. Note the pycnidial conidiomata showing as small black dots on the lesions. (C) Symptoms of angular leaf spot on current-year leaves. (D) White conidial horns being extruded through the ostioles of pycnidial conidiomata. (E) Close-up of white conidial horns. (F) Conidia. (G) Five-week old colonies of growing on potato dextrose agar. Note plentiful production of conidia on the colonies.