Area of impact: Stem
Description: Brick red oval-shaped lesions on the stem. The lesions can also appear on the leaf sheaths and spike. Lesions are rough to the touch.
Pathogen involved: Puccinia graminis (a fungus)
Timing/Conditions: Hot days and mild nights with nighttime dews.
Contributing factors: Can be spread by wind. Generally survives the off-season on volunteer wheat.
Management practices: Plant resistant varieties, eradicate woody hosts and apply fungicides.