In the United States, turfgrasses occupy 1.9 percent of the continental surface and cover an area three times larger than any irrigated crop. Turfgrasses provide functional benefits such as water quality protection, soil erosion control, and water microclimate moderation. To fulfill the needs of consumers and to contribute to environmental sustainability, turfgrass breeding programs evaluate, develop, and introduce turfgrasses with superior traits. Various turfgrass species have been assessed for pest and disease resistance, climatic region adaptation, drought tolerance, and reduced nitrogen requirements.