May is one of the most dynamic and nerve-racking months in Northern Hemisphere vineyards. Budbreak is largely complete by this point, and vines surge into rapid vegetative growth as daylight hours lengthen and temperatures rise. Vineyard crews are busy with shoot thinning, positioning shoots between trellis wires, suckering trunks, and managing canopy growth to create airflow and balanced sunlight exposure around the future fruit zone. Frost remains a lingering threat in cooler regions early in the month, while heavy spring rains can fuel disease pressure……...