By Lane Tredway, Ph.D., technical services manager for Syngenta

• Issue: Take-all root rot is prevalent on ultradwarf bermudagrass putting greens, especially in the transition zone
• Symptoms:
  • Patchy/ring-like appearance
  • Appears in late summer to fall
  • Can also manifest in winter or early spring when bermudagrass growth is slow
• Challenges with curative control:
  • Bermudagrass recovery is slow during cooler months
  • Pathogens cause damage in summer but are not highly active when symptoms are present

    Photo: Lane Tredway, 2021

• Curative approaches: Limited due to inactive pathogen and slow turf growth
• Preventive approaches:
  • Protect turf from other stresses
  • Support recovery when growth conditions improve

Fungicide Applications

• Tank mixtures for symptom breakthrough
  • Mix: Appear^® II fungicide (6 fl. oz./1,000 ft.²) with Daconil^® Action™ fungicide (3.5 fl. oz./1,000 ft.²) OR Secure^® Action fungicide (0.5 fl. oz./1,000 ft.²)
  • Frequency:
    
    • ​​​​​​​Every 14 days
  • Benefits: 
    • Protects against a range of pathogens and abiotic stresses
    • Promotes faster, more uniform spring greenup and recovery
• Spring recovery support:
  • Product: Briskway^® fungicide
  • Rate: 0.9-1.2 fl. oz./1,000 ft.² for curative rates
  • Advantages: Effective against take-all root rot and other diseases without growth regulation

• Timing: Initiate applications in late summer to fall when soil temperatures drop below 80 F 
  • Alerts: Sign up for soil temperature alerts for optimal application timing

• GreenTrust^® 365 Spring Dead Spot and Take-all Root Rot Guarantee Program:
  • Strategy: Combine Briskway, Posterity^® Forte and Headway^® fungicides for guaranteed control of spring dead spot and take-all root rot

For more information on treating take-all root rot, contact your local Syngenta territory manager.

All photos are either the property of Syngenta or are used with permission.

© 2025 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. Action™, Appear^®, Briskway^®, Daconil^®, GreenCast^®, GreenTrust^®, Headway^®, Posterity^® and the Syngenta logo are trademarks of a Syngenta Group Company. Secure^® is a registered trademark of Ishihara Sangyo Kaisha, LTD. All other trademarks are property of their respective third-party owners.