Warm Season Turf Out of Turf Guide
1941
Desirable Turf
BAHIAGRASS
HRAC CODE
HERBICIDE PROGRAM
Poa annua
5 Xonerate 2SC (9-14 fl oz/A). Make applications on 14-21 day intervals. Consult label for application restrictions.
BERMUDAGRASS
HRAC CODE
HERBICIDE PROGRAM
2 Manor 60 WDG (0.25-0.75 oz/acre). A repeat application may be required in 4 to 6 weeks. Addition of Harrell’s Nonionic Penetrant Plus at 0.25% v/v provides maximum performance but may temporarily increase turf chlorosis. Some bahiagrass varieties (‘Common,’ Argentine,’ & ‘Paraguayan’) are not completely susceptible to metsulfuron. Do not use beneath desirable trees or ornamentals. Do not apply to turf less than 1 year old.
Bahiagrass
Bahiagrass Bahiagrass
1 + 2 Manuscript (19.2 fl oz/A once OR 9.6 fl oz/A twice on 14 day interval) + Agidor (0.5 to 1% v/v) + Monument 75WG (0.35 to 0.53 oz/A)
4
Harrell's ProtectMAX Quinclorac (64 fl oz/A) + Harrell’s Methylated Seed Oil (1.5 pt/A)
17 MSMA (2.5 pt/A) + Harrell’s Nonionic Penetrant Plus (0.25% v/v). For golf course spot treatments only (100 square feet maximum per spot). Spot treatment must not exceed 25% of total golf course acreage per year. Not for use in Florida.
Bahiagrass
Centipedegrass
4 5
Harrell's ProtectMAX Quinclorac (64 fl oz/A) + Harrell’s Methylated Seed Oil (1.5 pt/A)
Creeping Bentgrass
Atrazine or Simazine (1 qt/acre)
2 Revolver 0.19L (4.4 – 17.4 fl oz/A). Revolver rate and temperature will influence the speed of removal. Higher labeled rates and air temperatures will result in quicker creeping bentgrass removal. For best results to control mature weeds, make applications when the daily temperature is above 70 degrees. Including Harrell’s Methylated Seed Oil (up to 1% v/v) may improve efficacy while increasing the chance of phytotoxicity under some conditions.
Creeping Bentgrass
Fine Fescue
5 5
Atrazine or Simazine (1 qt/acre) Atrazine or Simazine (1 qt/acre)
Kentucky Bluegrass
4 Make 2 sequential applications of Harrell's ProtectMAX Quinclorac (44 fl oz/A) + Harrell’s Methylated Seed Oil (1.5 pt/A) followed by an additional sequential application of HPM Quinclorac (39 fl oz/A) + MSO (1.5 pt/A) on 14-day to 21-day intervals.
Kikuyugrass
Perennial Ryegrass
5
Atrazine or Simazine (1 qt/acre)
2 Revolver 0.19L (8.8 – 17.4 fl oz/A). Revolver herbicide controls existing perennial ryegrass plants and does not control perennial ryegrass plants that have not germinated. Treatments may be applied when removal of ryegrass is desired and bermudagrass has resumed active growth. Higher labeled rates and warmer spring temperatures will result in faster perennial ryegrass control. Tank mixing Revolver with a nitrogen fertilizer soruce can help improve bermudagrass recovery during the transition period. 1 Manuscript 16.4 oz/A. Add Adigor adjuvant or Harrell’s Methylated Seed Oil at 0.5% v/v. For best results, apply to actively growing perennial ryegrass before emergence of 3rd tiller. 3 Kerb SC T&O (1.25 – 2.5 pt/A). Apply Kerb to warm season grasses at 50% greenup for ryegrass removal. Avoid spraying on hill sides, fairways, or approaches that may drain onto bentgrass greens or to areas overseeded with sensitive cool season grasses. 2 Monument 75 WG (0.1 to 0.35 oz/A) + Harrell’s Non-Ionic Penetrant Plus (0.25 – 0.5% v/v). The lowest rate allows for a more gradual transition. Higher labeled rates will result in a more rapid transition. If applied to dormant bermudagrass, some delay in green-up may be observed. A good bermudagrass base should be present before using this product to remove overseeded turfgrass species. 2 Katana (0.5 to 1.5 oz/A) + Harrell’s Nonionic Penetrant Plus (0.25% v/v). Applications for spring transition do not negatively impact bermudagrass greenup. Katana herbicide shows a slight rate response with control occurring within 3-4 weeks after application with the highest labeled rate giving better and faster control. Therefore, the bermudagrass or zoysiagrass turf needs to be at 50 to 60% greenup at the time of application for optimal maintenance of a green turf situation.
Perennial Ryegrass
Perennial Ryegrass
Perennial Ryegrass
Perennial Ryegrass
Perennial Ryegrass
The label for each product presented here should be consulted for Directions for Use and Rates of Application prior to use.
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