Maize
Northern Leaf Blight
Confidence 96%
Cigar-shaped grey lesions on lower leaves. Spray mancozeb within 4 days, remove infected stalks after harvest, rotate with cowpea next season.
AgroScan · Crop & fruit health
Photograph a leaf, plant or fruit. See the detected species, the most likely condition, and what to do next.
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Leaf, plant or fruit. Choose a clear photo of the affected area.
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Crops & fruits
Front and back, in daylight. Blurry is fine — the model was trained on farm photos, not studio ones.
Disease name in English, Hausa, Yoruba or Igbo, with how confident the model is and what stage the infection has reached.
The exact product, the dose per knapsack, and the two agro-dealers nearest you who stock it this week.
Field ledger · last 30 days
Maize
Confidence 96%
Cigar-shaped grey lesions on lower leaves. Spray mancozeb within 4 days, remove infected stalks after harvest, rotate with cowpea next season.
Tomato
Confidence 93%
Concentric rings on older leaves, spreading upward. Prune the bottom two branches, mulch to stop soil splash, apply chlorothalonil every 7 days.
Cassava
Confidence 91%
No cure once infected. Uproot and burn affected stands, control whitefly, replant with TME 419 or TMS 30572 cuttings from a certified source.

Healthy · rust, stage two · nitrogen deficiency mistaken for disease
“I lost a third of my maize to blight in 2024 because I treated it for the wrong thing. This season I caught it on the fourth day.”
Bolaji A. · 6 hectares, maize and cassava · Iseyin, Oyo State
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