8/29/2023 - By Dr. Paul Giordano

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Study:                   Control of gray and pink snow mold on golf course fairway turf in the northern U.S.

Location:             Several

Collaborator:     Paul Koch, Ph.D. (University of Wisconsin), Geunhwa Jung (UMass)

Date:                     Winter 2022/2023

Conclusion:    The ProtectMAX Fungicide Program uses proven active ingredients at effective rates with a simple and affordable approach. The program consists of either a single application or two applications applied 3-weeks apart prior to snow cover in the late fall. Early + Late applications are implemented on research sites that have notoriously high disease pressure and variable fall weather patterns that can trigger early disease development.

The Harrell’s ProtectMAX programs with and without Turfcide 400 overall delivered excellent control of gray, speckled, and pink snow mold in trials across the northern United States, during the winter of 2022/2023. Even in areas with over 100 days of snow cover and frequent rainfall events throughout the winter, the program was able to maintain significant disease control compared to the untreated, as well as many other current industry standards. Specifically, where snow mold pressure was extremely high at the UW site in Marquette, MI (72.5% disease severity), the ProtectMAX program ranked in the top statistical category for snow mold control. This level of control was comparable to numerous industry-standard programs that also include 3 to 4 active ingredients.

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For more research from our Directors of Agronomy and disease solutions, check out our blog page.