Which of the following is a cultural control action?

• A. Adjusting Irrigation Schedule
• B. Releasing Predatory Mites
• C. Spraying Broad-Spectrum Pesticides
• D. Using Heat Treatment

Answer: (A)

Cultural control actions are practices that change the growing environment to reduce pest problems without adding organisms or chemicals. Adjusting the irrigation schedule fits this because it changes moisture and plant stress levels, making conditions less favorable for pests and diseases. Proper watering can reduce leaf wetness and humidity that many pests and pathogens rely on, helping plants stay healthier overall. The other options fall into different control categories: releasing predatory mites is biological control (using natural enemies), spraying broad-spectrum pesticides is chemical control, and using heat treatment is a physical control method. So adjusting irrigation schedule is the cultural approach in this set.