In turf management, which practice is least effective in disease prevention?

In turf management, overwatering is considered the least effective practice for disease prevention. Proper watering practices are critical because excess moisture creates an environment conducive to various turf diseases. When grasses are overwatered, it can lead to poor root aeration and promote fungal growth, as many pathogens thrive in moist conditions.

In contrast, regular mowing helps maintain turf health by promoting dense grass growth, which can outcompete weeds and pathogens. Fertilization at the correct times ensures that the turf receives the necessary nutrients to remain healthy and resilient against diseases. Proper aeration improves root development and enhances soil drainage, making it harder for pathogens to establish. Hence, while all other practices contribute positively to turf health and disease prevention, overwatering has a detrimental effect, making it the least effective practice in this context.