When to spray English walnut trees?

Spray English walnut trees in early spring before bud break to manage pests and diseases effectively. It's also beneficial to apply treatments during the growing season, particularly around bloom time and after harvest, depending on specific issues like walnut husk fly or leaf blight. Always follow local guidelines and consider the timing of sprays based on weather conditions and the life cycles of pests. Regular monitoring of tree health is essential for effective management.