Symptoms: Initial infection sites tend to be irregular in shape, oval to elongated chlorotic spots or lesions. As these sites expand, the centers of the lesions become pale, straw colored, and slightly necrotic, often with numerous small black dots (pycnidia). The lesions of septoria tritici blotch tend to be linear and restricted laterally, while those of septoria nodorum blotch and septoria avenae blotch are more lens shaped. All above ground plant parts can be affected.
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