Glume blotch
General Parastagonospora nodorum (Phaeosphaeria nodorum) is a fungal pathogen of wheat , barley and ryethat induces yield and quality losses. Damage symptoms [...] presents itself as brown, elongated lesions with a light halo on leaves, stems and glumes. In the centre of the lesions, light-coloured translucent pycnidia [...] Perithecia are also formed on dead glumes and stems. In case of severe infection , the heads of wheat become black and the kernels become shrivelled and deformed