What is an endophyte in relation to turfgrass?

An endophyte refers to a fungus that lives within a plant, particularly in grasses, without causing apparent harm to the host. In the context of turfgrass management, endophytes play a significant role in enhancing the plant's resistance to pests, particularly certain insects. These fungi can produce chemical compounds that deter herbivorous insects, making the lawn less appealing to pests and thereby reducing the need for synthetic pesticides. This relationship benefits both the grass and the ecosystem, as it supports sustainable turf management practices by utilizing natural biological defenses.

Other options presented, such as a grass variety for all climates, a method of fertilization, and mechanical pest control, do not accurately describe the nature and function of endophytes within turfgrass. Understanding the function of endophytes is essential for effective pest management strategies in cool-season turfgrass systems.