How do soil temperature and moisture affect disease development in turfgrass?

Soil temperature and moisture significantly influence disease development in turfgrass, with certain conditions creating an ideal environment for pathogenic organisms to thrive. Warmer temperatures generally enhance pathogen growth and activity, enabling diseases to develop more rapidly. In addition, adequate moisture in the soil provides the necessary conditions for pathogens to proliferate, as it facilitates the spread of spores and the infection process.

When soil temperatures are optimal for specific pathogens, and if moisture levels are sufficient, diseases such as root rot, brown patch, and dollar spot can emerge more quickly and spread extensively. This dynamic interaction means that higher soil temperatures and moisture levels can encourage a range of turfgrass diseases to develop and progress swiftly, showcasing the importance of monitoring and managing these environmental factors to maintain healthy turf.