Grape
Esca (Black Measles)
PlantVillage Dataset Ref: Grape___Esca_(Black_Measles)
🔴 Pathogen Detected
📖 Pathological Overview
Esca is a complex wood-rot disease caused by a combination of fungi, including Phaeomoniella chlamydospora. It affects the vine's vascular system, leading to foliage and berry damage.
🔍 Disease Symptoms
Interveinal yellowing and browning on leaves (tiger-stripe pattern). Berries develop dark spots resembling measles, crack, and shrivel.
🩹 Cure & Treatment Plan
There are no curative chemical treatments for Esca. Prune out infected wood down to healthy tissue and seal large pruning wounds.
🛡 Prevention & Care Tips
Avoid pruning during wet weather when fungal spores are active. Disinfect pruning tools between vines.