Ornamental and Turf Pesticide Applicators Practice Exam

Which aspect of turf management is critical for increasing grass health?

1. Over-fertilizing the grounds

2. Consistent mowing at an appropriate height

3. Limiting water to the turf

4. Using only synthetic fertilizers

The correct answer is: Consistent mowing at an appropriate height

Consistent mowing at an appropriate height is critical for increasing grass health because it supports healthy growth and root development. Proper mowing encourages grass to grow denser and promotes a robust leaf canopy, which can outcompete weeds and improve the overall resilience of the lawn. When grass is maintained at the recommended height, it enhances photosynthesis, allowing the plant to produce more energy and nutrients. It also reduces stress on the grass, preventing problems associated with cutting too short, such as scalping, which can lead to increased susceptibility to pests and diseases. Moreover, maintaining the correct height can improve water retention in the soil and reduce the frequency of mowing, benefiting the overall aesthetics and ecological balance of the turf area. In contrast, over-fertilizing the grounds can lead to nutrient run-off and potential poisoning of plants, limiting grass health. Limiting water may cause drought stress, harming the grass and its ability to thrive. Using only synthetic fertilizers may not provide the comprehensive nutrient needs of the turf, as natural organic options can contribute to soil health and improve microbial activity, which enhances nutrient availability and turf resilience.