disease_position_erumpent
emerging
Leaf stripe, blotch or spot and seedling blight of oats. Seed-borne infection produces a range of seedling symptoms from pre-emergence death to slight spotting or streaking of coleoptiles. Mycelial infection of emerging leaves causes distortion and spotting. Inoculum from primary leaves causes secondary spread to upper leaves, producing light reddish-brown irregular streaks or blotches. Spikelet drop (42, 543) and stem-break (36, 641) may also occur when the disease is severe.
Pyrenophora avenae
Pyrenophora avenae