How can over-watering affect turfgrass?

Over-watering can severely impact turfgrass health, and the correct answer highlights one of the most detrimental effects: it can lead to root rot and other diseases. When turfgrass receives too much water, the soil can become saturated. This saturation reduces the amount of oxygen available to the roots, which is essential for their growth and function. In inadequate oxygen conditions, root rot pathogens thrive, leading to root decay and ultimately diminishing the plant's health.

Additionally, excess water creates a favorable environment for various fungal diseases, further compromising the turf's vigor and appearance. Therefore, understanding the importance of balanced watering practices is crucial for maintaining healthy and resilient turfgrass.

The other options present benefits that do not align with the consequences of over-watering. Drought resistance and deeper root growth are typically outcomes associated with appropriate watering levels and proper soil management, while improved soil aeration might occur with optimal water management but not when over-watering is prevalent.