“Turfgrasses under intensive management are often subject to outbreaks of infectious diseases. Diseases usually are most damaging when weather or cultural conditions favor the disease-causing agent but not plant growth and vigor.”
This quote from the “Chemical Control of Turfgrass Diseases 2017” publication at University of Kentucky and Rutgers University, really sums up why we have diseases in our turfgrass systems. Many times we have no control over weather or the cultural conditions that favor disease-casuing agents and those same conditions do not favor turfgrass growth. To prepare for 2019 download this publication from Drs. Vincelli, Clark and Munshaw and keep it around as a great reference. I keep a copy of this publication along with my weed control manual (https://blogs.k-state.edu/turf/new-turfgrass-weed-control-for-professionals-2019/) at all times.
- Jared Hoyle