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Tomato Seedling Spots: Need Photo and Seed Source

Brownish spots/streaks on tomato seedlings—worse on early-planted ones—could be bacterial spot, early blight, or even physiological (cold injury). Microscope "blisters" need clarification.

Info Needed

Close-up photo of lesions (sharp, in focus).
Are spots spreading? On old or new leaves?
Seed source: saved or purchased?

With details, a diagnosis and seed-treatment advice can be given.

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