Vinca (Periwinkle) Blight: Symptoms and Control

Phoma Blight of Vinca

Vinca (periwinkle) is a popular groundcover that can be devastated by Phoma blight, especially in wet conditions.

Symptoms: Branches and eventually the entire plant blacken at the base and die.

Pathogen: Phoma species.

Management: Avoid overhead irrigation to keep foliage dry. Apply a fungicide as a drenching spray to protect plants.

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