Texas FFA Nursery Landscape Practice Exam

When mowing turf, what is the maximum percentage of the leaf blade that should be removed at each cutting?

1. Two thirds

2. One half

3. One third

4. One eighth

The correct answer is: One third

When mowing turf, the guideline is to remove no more than one third of the leaf blade at each cutting. This approach is important for several reasons. Firstly, cutting more than one third of the leaf blade can stress the grass, as it removes too much of the photosynthetic area at once. This can lead to reduced growth and vigor in the grass, making it more susceptible to diseases, pests, and environmental stress, such as drought. Secondly, maintaining the leaf blade can help ensure proper airflow and light penetration to the lower parts of the grass plant. This is crucial for the overall health of the turf, as it encourages dense growth and a healthy root system. Removing too much leaf material can inhibit this essential process, leading to a weaker lawn that may require more frequent maintenance and care. Adhering to the one third rule ensures that the turf remains healthy and robust, supporting sustainable lawn care practices. Other options, such as removing two thirds, one half, or one eighth, do not align with the best practices established for maintaining turf health.