How can temperature stress impact turf competition with weeds?

Temperature stress can significantly weaken turf, which in turn makes it less competitive against weeds. When turf is exposed to extreme temperatures—whether too hot or too cold—it can experience physiological stress that impacts its growth, root development, and overall health. Under such stress conditions, turf may have reduced photosynthesis, decreased nutrient uptake, and compromised vigor. This weakened state allows weeds, which may be more tolerant of those temperature extremes, to establish and thrive more easily. As a result, the competitive advantage that healthy turf would typically have is diminished, allowing weeds to infiltrate and dominate the area. Understanding this dynamic is crucial for effective turf management, particularly in recognizing the importance of maintaining optimal growing conditions to bolster turf resilience and suppress weed growth.