Blind seed disease

Gloeotinia granigena

Host plants / species affected
Festuca arundinacea (tall fescue)
Lolium multiflorum (Italian ryegrass)
Lolium perenne (perennial ryegrass)
Poaceae (grasses)

List of symptoms/signs
Seeds  -  empty grains
Seeds  -  shrivelled

 The disease occurs sporadically, depending on weather conditions at flowering time.