On the Prairies, leaf spot complex is a significant yield robber in wheat and barley. A group of stubble-borne diseases, leaf spot complex is practically ubiquitous in Alberta cereals. Its presence can lead to downgrading, especially in bread wheats and durum. Ongoing studies aim to better understand causes and develop treatments.

Bacterial leaf streak (BLS) is a subtle intruder, but given the right conditions, it can cause significant yield loss and affect future crops in wheat and barley. Most commonly transmitted through contaminated seed, the disease has the cereal industry pushing on all fronts to break the chain of transmission, starting with the development of an effective seed test to help farmers manage the risk and prevent it from spreading.