Esca, Young Esca, and Petri Disease

Esca and petri disease cause internal wood discoloration and decline on grapevines. You see leaves with brown margins and fruit shriveling. The fungal disease significantly affects production. Remove infected vines and maintain pruning hygiene.

The most practical approach is to reduce the conditions esca, young esca, and petri disease needs to thrive. Prune for better airflow, water at the base rather than overhead, and remove infected material promptly. For high-value plants or recurring problems, preventive treatments timed to protect new growth during the infection window can make a measurable difference.