12/16/2021 - By Dr. Paul Giordano

Conclusion:

Title Phyte® Systemic Fungicide was tested alone and in combination with Activator+SA on an active outbreak of Pythium root rot. Although pressure was extremely high in this trial, the combination of Title Phyte® Systemic Fungicide with Activator+SA significantly improved overall turf quality and secondary control of brown patch throughout July and August. No significant differences were observed in overall control of Pythium root rot, although improvements in turf quality and health supported a trend in lower disease in Title Phyte® Systemic Fungicide and Activator+SA treated plots. The addition of Activator+SA to Title Phyte® Systemic Fungicide provided significant benefits to turf quality and disease control under extreme pressure.

Figure 1: Turf quality rating (AUQPC) across treatments over the course of the study (July – August). The only treatment to show significant turf quality improvement vs the non-treated control was the Title Phyte® Systemic Fungicide + Activator+SA.

Figure 2: Pythium root rot incidence (AUDPC) on trial area throughout the course of the study (July – August). No treatment was able to provide significant disease suppression compared to the non-treated control. However, trends show improved turf quality and lower overall disease incidence Signature Xtra and Title Phyte® Systemic Fungicide + Activator+SA treatments.

Figure 3: Brown patch incidence (AUDPC) on trial area throughout the course of the study (July – August). Title Phyte® Systemic Fungicide alone and Signature Xtra were not able to suppress disease significantly compared to the non-treated control. Title Phyte® Systemic Fungicide + Activator+SA showed significantly lower brown patch incidence than all other treatments.