Late Winter/Spring Weed Control Program Bermudagrass / Zoysia Fairways
Month July Week 5 6 7 8 9 10 11 12 13 14 15 16 17 18 192021 222324252627282930 February March April May June
Priority Explanation
Specticle ® FLO 3 6 fl. oz./A or Echelon ® 24 fl. oz./A 5 or Ronstar on Fertilizer 2-3 lb. ai./A Apply 90 days after previous application
Ronstar ® FLO 1 81-122 fl. oz./A (2.0-3.0 lb. ai./A) (if using Ronstar FLO on dormant turf, a non-selective herbicide could be included) or Ronstar 2 on Fertilizer 2-3 lb. ai./A
Control through August
Ronstar FLO 1,4 81 fl. oz./A (2 lb. ai./A) (if using Ronstar FLO on dormant turf, a non-selective herbicide could be included) or Ronstar 2 on Fertilizer 2 lb. ai./A
Specticle FLO 3 4.5 - 6.0 fl. oz./A Apply at 50% Turf Green Up
For Ronstar-resistant goosegrass sites Control through August
Sand >85% or Soil Organic Matter <0.1%
Ronstar FLO 1 81-122 fl. oz./A (2.0-3.0 lb. ai./A
Specticle FLO 3 3 fl. oz./A
Specticle FLO 3 3 fl. oz./A Apply 30-45 days after previous application
(if using Ronstar FLO on dormant turf, a non-selective herbicide could be included) or Ronstar 2 on Fertilizer 2.0-3.0 lb. ai./A
Control through August
Apply 90 days after previous application
Ronstar FLO 1,4 81 fl. oz./A (2 lb. ai./A) (if using Ronstar FLO on dormant turf, a non-selective herbicide could be included) or Ronstar 2 on Fertilizer 2.0-3.0 lb. ai./A Critical on areas with threat of winterkill
Specticle FLO 3 3 fl. oz./A Apply at 50% turf green-up
For Ronstar-resistant goosegrass sites Control through August
Specticle FLO 2 2-3 fl. oz./A, apply every 45-60 days after initial application
Follow all label directions. 1 Use Ronstar FLO 2.5 lb. ai./A rate in northern part of transition zone and 3 lb. ai./A rate in southern part of transition zone. New labeling on Ronstar Flo makes it a restricted use pesticide and limits application area. Check your specific label prior to application. 2 Spread rate should be minimum of 250 lbs. of fertilizer per acre for regular granule size and 200 lbs. per acre for mini granule size. 3 Do not apply if turf injury is present and assess turf quality before each application. 4 If winterkill is not a concern, other options include dithiopyr or prodiamine. 5 Avoid applications of Echelon to zoysiagrass during periods of transition. For improved efficacy apply an additional 12 fl. oz./A 60-90 days later
15
June 2025
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