What is one way to improve the longevity of broadleaf weeds in a managed turf area?

Maintaining a low mowing height can contribute to the longevity of broadleaf weeds in a managed turf area because it stresses desirable grass species while allowing broadleaf weeds to thrive. When turf is mowed lower, it exposes the soil more directly to sunlight, potentially encouraging weed seed germination and growth. This practice can also weaken grass plants, making them less competitive against the persistent and often aggressive growth of broadleaf weeds. In this situation, the grass may be unable to establish itself properly, which benefits the broadleaf species as they can capitalize on the reduced competition and increased light availability.

The other options would not typically improve the longevity of broadleaf weeds in the same way. For example, overseeding with grass generally helps improve turf density and health, which can suppress weed populations. Allowing areas to go fallow would not specifically support broadleaf weeds either, as fallow land tends to lead to the establishment of other types of vegetation. Promoting waterlogged soil conditions generally creates an unfavorable environment for many plant species, including broadleaf weeds, which often prefer well-drained conditions.