Stem Rust

Puccinia graminis
Stem rust (Puccinia graminis) is a disease that has many species specific strains. The strain that infects ryegrass in New Zealand does not attack other species such as wheat or barley. Stem rust is favoured by warm conditions and is at its most aggressive later in the spring. Not controlled, stem rust will lead to major economic losses.
Stem Rust - Ryegrass

Related Pests