Turfgrass rust, caused by fungal pathogens like Puccinia spp., thrives in the mild, humid climates prevalent across Europe. This year it has had huge influence because it was followed up by drought and heat in the southern parts of Europe (See Figure 2). A lot of the Poa pratensis varieties were not able to recover before the heat stress.
Rust (Figure 1) manifests as orange or yellow pustules on the grass blades, leading to reduced photosynthesis, weakened plants, and unsightly discoloration. For sod producers, the impact of rust can be significant. Rust-affected turf fails to meet the visual standards demanded by clients, from residential users to high-profile sports facilities. A disease outbreaks can delay harvest times, increase the need for fungicide treatments, and elevate overall production costs. Rust-prone turf can result in dissatisfied customers, damaging a producer’s reputation.