Which statement best describes how cultural practices can reduce disease pressure in turf?

• A. Only applying fungicides reduces disease
• B. Mowing at proper height, proper fertilization, and appropriate irrigation can reduce leaf wetness
• C. Increasing irrigation always reduces disease
• D. Waiting for symptoms before acting

Answer: (B)

Cultural practices reduce disease pressure by changing the environment and host vigor to make infection less likely, especially by cutting leaf wetness time. Mowing at the right height improves air movement through the turf canopy and reduces surface area where moisture can linger, helping leaves dry faster. Proper fertilization keeps growth balanced so the turf isn’t overly lush, which can create dense canopies that hold moisture and favor pathogens. Appropriate irrigation avoids creating prolonged wetness on leaf surfaces, further reducing opportunities for disease to establish. In short, these practices address the conditions pathogens need to infect and multiply, rather than relying on chemicals, reacting after symptoms appear, or increasing moisture indiscriminately.