Which control method does NOT help with Pythium blight?

The control method that does not help with Pythium blight is applying large amounts of nitrogen during damp weather. Pythium blight is a water mold disease that thrives in warm, wet conditions. High nitrogen levels can stimulate excessive leaf and shoot growth, creating a lush environment that is particularly favorable for the development of Pythium blight. When nitrogen is applied in damp conditions, it exacerbates moisture retention in the turf, promoting conditions conducive to the growth of the fungus.

On the other hand, providing good drainage is essential for reducing water accumulation and preventing favorable conditions for Pythium. Regularly removing obstructions like shrubs helps improve airflow and reduces humidity, which also minimizes the risk of disease. Finally, using fans to enhance air circulation helps to dry out the turf and lower humidity levels, further making it less hospitable for Pythium blight. These methods contribute positively to managing the disease, whereas high nitrogen application during damp periods can lead to increased vulnerability in the turf.