The leaf spot of Oats

Drechslera avenae

Symptoms and signs

This disease appears as reddish tan leaf blotches that are somewhat linear with irregular margins. Heavily infected leaves die. Seedling blight may occur if coleoptiles are infected.

Comments on the disease

The fungus survives on infected, undecayed plant debris in soil or less commonly inside the hull of infected seed. The disease is favored by cool and rainy weather.

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