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Lemon Tree Fruit with Brown Spots: Citrus Disease Identification

6-year-old lemon in Louisiana (ground 3 years) produced 100+ fruit, now silver-dollar-sized hard brown spots causing drying/drop. Owner needs urgent help.

Possible Diseases

Citrus canker, black spot, scab, alternaria (causes early drop). Without photo, exact ID impossible.

Immediate Actions

Remove/destroy all infected fruit and fallen leaves (not compost).
Consult ID Tools citrus disease gallery (idtools.org) for photo matching.
Consider drainage, watering, sun exposure changes since planting.
Follow up with photo or identified disease name for specific treatment.

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