What cultural practice helps crowd out weeds in turfgrass?

The cultural practice that helps crowd out weeds in turfgrass is fertilizing. Proper fertilization enhances the health and vigor of the turfgrass, allowing it to grow thick and lush. A robust turf establishes a competitive environment that makes it more difficult for weeds to take root and thrive. When grass is well-nourished, it can effectively utilize nutrients, water, and sunlight, thereby outcompeting weed species for these essential resources.

Frequent watering may encourage weed growth if the grasses are not managed properly, as it can promote excessive moisture that some weed species thrive in. Low mowing can stress certain grass types and lead to an increased likelihood of disease and weed invasion, while weed removal is a reactive measure rather than a preventive practice that fosters dense turf. By focusing on fertilization, turf managers can proactively enhance the growth of desirable grass species, leading to reduced weed pressure.