Utah State University Extension
This fact sheet describes Barley yellow dwarf virus, a worldwide insect pest that infects small grains like barley, wheat, oats and rice, as well as many wild grass species. It describes symptoms, the disease cycle, and management options.
Nischwitz, Claudia and Holmgren, Lyle, "Barley Yellow Dwarf Virus (BYDV)" (2015). All Current Publications. Paper 1577.