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  • 39.2 oz.

Segway® Fungicide SC

Controls Pythium disease in turfgrass

What it is

University and real world trials show Segway® Fungicide SC is highly effective in protecting professionally managed turf areas, and provides outstanding protection against Pythium disease over a period of 7 to 28 days. The active ingredient of Segway, cyazofamid, stops spores from germinating, preventatively inhibiting all stages of Pythium fungal development.

What it does

Segway controls:
  • Pythium root dysfunction
  • Pythium blight
  • Pythium damping-off
  • Pythium root rot
Labeled for use in professionally managed turf areas, including:
  • Golf courses (tees, fairways and greens)
  • Sod farms
  • Seed farms
  • Cemeteries
  • Professionally managed sports fields
  • Residential lawns by professional applicators

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Product Type



39.2 oz.





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Plot Comparisons

Pythium Foliar Blight Control
2016 – Penn State University
Untreated Control

Rate: 0.45 fl. oz. / 1,000 sq. ft. Single Application on June 29, 2016 Trial Inoculated on June 30, 2016
Photos taken on July 8, 2016
Pythium Root Rot Control
2018 – North Carolina State University
Untreated Control

Rate: 0.9 fl. oz. / 1,000 sq. ft. (28 Day) Latest Application on July 11, 2018
Photos taken on July 12, 2018


Quick Reference Guide: Pythium Diseases


Pythium Root Dysfunction

  • Bentgrass greens <10 years old
  • Sand-based root zones
  • Temperatures: 50° – 75°F
  • Roots are darker in color
  • Lack of root hairs
  • Plant discoloration, thinning, death

Pythium Blight

  • Perennial ryegrass
  • Creeping bentgrass
  • Poa annua
  • Fescues
Cool-season turf:
  • Daytime temperature >85°F
  • Nighttime temperature >65°F
  • Relative humidity >90% for 14 hours
Warm-season turf:
  • During rainy conditions when temperature >50°F
  • Collapsed leaves/stems
  • Circular patches approximately

Pythium Damping-Off

  • Seedlings of any turfgrass species
  • Both before and after emergence
  • Any time of year
  • Similar to seedling wilt, but declines further
  • Turns dark and eventually dies

Pythium Root Rot

  • Poorly drained greens
  • Creeping bentgrass and annual bluegrass greens
  • Symptoms seen in summer months
  • After heavy rainfall during hot weather
  • Any time soil is water-logged for extended periods
  • Irregular patterns of orange or yellow turf
  • Individual plants appear dark and greasy

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