Pepper spot and scorch
- Pepper spot looks sooty
Minor but widespread. Leaves drop off. Is often one of the earliest foliar diseases to infect crops.
The same fungus causes two different symptoms under different weather conditions. Pepper spot occurs when very small spots, under 1 mm, develop on the top of the leaf. Scorch occurs when a V-shaped part of the leaf dies (usually on the margin) and a yellow zone forms next to it.
The fungus survives on peanut residues and is spread by wind.
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