C/O: Pyrenophora tritici-repentis
- Small, oval to diamond-shaped spots.
- These spots will enlarge and turn tan, often with a yellow border, and have a small dark brown spot resembling an “eyespot” near the center.
- Eyespot symptom is best observed when holding the leaf up to the sunlight.
- Infected kernels can develop a reddish discoloration on the seed coat, which commonly is called “red smudge”.
Fig: Tan, necrotic center with yellow halo.
Fig: Red smudge in wheat
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