What is the role of nematodes in turfgrass health?

Nematodes play a dual role in turfgrass health, which is captured well in the correct answer. Some species of nematodes can be beneficial to turf by contributing to soil health, aiding in the breakdown of organic matter, and facilitating nutrient cycling, which promotes growth. These beneficial nematodes help suppress plant pathogens and enhance overall soil structure. On the other hand, there are also species of nematodes that are harmful to turfgrass. These plant-parasitic nematodes can feed on the roots and other parts of the plants, leading to symptoms like stunted growth, reduced turf density, and overall poor turf health.

The ability of nematodes to both positively and negatively influence turfgrass is important for turf management practices. Understanding this dynamic allows turf managers to implement strategies that encourage beneficial nematode populations while managing or controlling harmful ones. This holistic view of nematodes helps in making informed decisions on pest management and promoting optimum turf health.