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Disease

Disease Description
Carrot
Cc
Cercospora leaf spots

Symptoms: Development of circular or semi-circular spots on the edges of the leaves. Small yellow spots surrounded by a brown ring. 
Advice: Avoid an overly dense population and excessive nitrogen fertilization; avoid watering at the end of the day or at night.

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Carrot
Ps
Cavity spot

Symptoms: Long translucent to blackish sunken spots on the root surface. Later, cracks and longitudinal splitting appear. Bacterial infection can change those spots into rotten lesions.
Advice: Arrange long rotations between two carrots crops (4 to 5 years). Make sure fields are well drained. Apply nitrogen reasonably. Apply lime to acid soil.

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Carrot
Ad
Late leaf blight

Symptoms: Small brown spot surrounded by yellow

Advice: Avoid an overly dense population and excessive nitrogen fertilization; avoid watering at the end of the day or at night.

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