Landscaping License Practice Test

Which of these practices is essential for effective weed control?

1. Overwatering the lawn

2. Regular lawn mowing

3. Using high rates of fertilizer

4. Irrigating only during dry seasons

The correct answer is: Regular lawn mowing

Regular lawn mowing is essential for effective weed control because it helps maintain the overall health and density of the grass in the lawn. When grass is kept at an optimal height through regular mowing, it can outcompete weeds for sunlight, water, and nutrients, thereby reducing their chance of establishing and proliferating. Furthermore, mowing prevents weeds from flowering and going to seed, which can lead to a larger population of weeds in the future. Other practices, such as overwatering or using high rates of fertilizer, can actually encourage weed growth by creating conditions that favor weeds over the desired grass. For example, overwatering can lead to poor drainage and disease, while excessive fertilizer can promote rapid growth in both grass and weeds, leading to further competition. Finally, irrigating only during dry seasons may not provide consistent moisture needed for optimal grass health, allowing weeds to thrive when conditions are right. Thus, regular lawn mowing plays a pivotal role in an effective weed control strategy.