Publications for:

pest = Tilletia walkeri
crop = Lolium (crop)

found 2 publications:

1999

Tilletia walkeri, a new species on Lolium multiflorum and L. perenne
Mycologia (1999) 91 (2), 121-131
pestinfo wiki

Tilletia walkeri on annual ryegrass in wheat fields in the southeastern United States
Plant Disease (1999) 83 (7), 685-689
publishers website - pestinfo wiki