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Stem rust

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.

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