Crabgrass germinates when soil temperatures average 55F and is best controlled with the preemeregnce herbicides Ronstar ® or Specticle ® . (Envu)
Month January June Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1920212223242526 February March April May
Prioritized Options
Priority Explanation
Specticle FLO 2 4.5 fl. oz./A Apply 60 days after previous application
Specticle ® FLO 2 4.5 fl. oz./A Apply 60 days after previous application
Ronstar ®1 on Fertilizer 2.0 - 3.0 lb. ai./A
Control through August
Better
Specticle FLO 2 4.5 fl. oz./A Apply 60 days after previous application
Ronstar 1 on Fertilizer 2 lb. ai./A Apply 60 days after previous application
Ronstar 1 on Fertilizer 2.0 - 3.0 lb. ai./A
Control through August
Best
Follow all label directions. 1 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. 2 Do not apply if turf injury is present and assess turf quality before each application
Goosegrass germinates usually a couple of weeks later than crabgrass. Ronstar ® is an industry standard for goosegrass control, plus it allows sprigging into an application because it is absorbed by the shoots and not roots. (Envu)
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July, 2024
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