What is one key sign that a Tokay grapevine needs pruning?

One key sign that a Tokay grapevine needs pruning is excessive and tangled growth. This condition indicates that the vine may be overgrown and can lead to various issues if not addressed. When grapevines become excessively tangled, it restricts air circulation and sunlight exposure to the leaves and fruit. Proper airflow is crucial for preventing diseases, while adequate sunlight is essential for the photosynthesis process, which ultimately affects fruit quality and yield.

Pruning helps to manage this growth by removing unnecessary vine shoots and allowing for better structure and spacing. This not only enhances the vine's health and productivity but also improves accessibility for tasks such as harvesting and maintenance. Therefore, identifying excessive and tangled growth as a need for pruning is critical for maintaining a healthy Tokay grapevine.