What Can Early Fungicide Apps Do for You? Brown Patch on Tall Fescue Control at Various Application Timings

By Daniel Earlywine

Research Specialist • University of Missouri

By Lee Miller

Associate Professor and Director, Integrated Pest Management • University of Missouri

Brown patch caused by Rhizoctonia solani is the most prominent disease on tall fescue lawns. Fungicide applications may be made 3-4 times per season for complete control, but is it possible to make earlier applications that result in longer control? This research evaluates spring applications of various granular and sprayable fungicides made on soil temperature thresholds compared to an early curative and standard preventive application scheme.