Which cultural practice is most critical in suppressing destructive lawn pests?

Which cultural practice is most critical in suppressing destructive lawn pests?

• A. Fertilization
• B. Mowing Height
• C. Irrigation
• D. Aeration

Answer: (C)

Maintaining proper irrigation is the most effective way to suppress destructive lawn pests because moisture stress is a major trigger for pest outbreaks. When the turf is evenly watered, it stays vigorous and dense, which makes it harder for pests to establish and easier for the grass to recover after feeding or damage. Drought-stressed patches attract sap-sucking insects and other pests, so providing deep, consistent moisture reduces those stress cues and keeps pest populations in check. In practice, water deeply and infrequently to encourage deep roots, while avoiding waterlogged conditions. Fertilization and mowing height influence growth and canopy, but they don’t address the moisture-related vulnerability to pests as directly as proper irrigation does.

Maintaining proper irrigation is the most effective way to suppress destructive lawn pests because moisture stress is a major trigger for pest outbreaks. When the turf is evenly watered, it stays vigorous and dense, which makes it harder for pests to establish and easier for the grass to recover after feeding or damage. Drought-stressed patches attract sap-sucking insects and other pests, so providing deep, consistent moisture reduces those stress cues and keeps pest populations in check. In practice, water deeply and infrequently to encourage deep roots, while avoiding waterlogged conditions. Fertilization and mowing height influence growth and canopy, but they don’t address the moisture-related vulnerability to pests as directly as proper irrigation does.