Warm Season Turf Out of Turf Guide
1941
Desirable Turf
ZOYSIAGRASS
HRAC CODE
HERBICIDE PROGRAM
Bahiagrass
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 application only spot treatments (100 square feet maximum per spot) are allowed. Spot treatment must not exceed 25% of total golf course acreage per year. Not for use in Florida. 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) 1 + 4 Acclaim Extra 0.57L (20-28 fl oz/acre) + Turflon Ester 4L (1 qt/A) + Harrell’s Nonionic Penetrant Plus (1 qt/100 gal). Begin applications as soon as common bermudagrass begins growth. Repeat applications should be made every 4-5 weeks to continue growth suppression of these species for up to 5 applications. Adding triclopyr ester increases control but should not be used on warm-season grasses unless temporary phytotoxicity is acceptable. 2 + 1 Recognition 1.5 oz/A + Fusilade II 24 fl oz/A. Repeat applications as needed on a 4-6 week interval. Add Harrell’s Nonionic Penetrant Plus (0.5% v/v) for best results. Caution: Fusilade II alone without Recognition will cause significant phytotoxicity to zoysiagrass.
Bahiagrass
Bahiagrass
Bermudagrass
Bermudagrass
Centipedegrass
4
Harrell's ProtectMAX Quinclorac (64 fl oz/A) + Harrell’s Methylated Seed Oil (1.5 pt/A)
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 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. 2 + 1 Recognition 1.5 oz/A + Fusilade II 24 fl oz/A. Repeat applications as needed on a 4-6 week interval. Add Harrell’s Nonionic Penetrant Plus at 0.5% v/v ratio for best results. Caution: Fusilade II alone will cause significant phytotoxicity to Zoysiagrass.
Creeping Bentgrass
Goosegrass
Kentucky Bluegrass
1
Manuscript 16.4 oz/A. Add Adigor adjuvant or Harrell’s Methylated Seed Oil at 0.5% v/v.
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. 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.
Kikuyugrass
Perennial Ryegrass
Perennial Ryegrass
2
Monument 75 WG (0.35 – 0.45 oz/A) + Harrell’s Nonionic Penetrant Plus (0.25 – 0.5% v/v).
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. 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. 2 Revolver 0.19L (8.8 – 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 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.
Perennial Ryegrass
Perennial Ryegrass
Poa annua
Poa annua Poa annua
2
Monument 75 WG (0.35 – 0.45 oz/A) + Harrell’s Nonionic Penetrant Plus (0.25 – 0.5% v/v).
5 Xonerate 2SC (9-14 fl oz/A). Make applications on 14-21 day intervals. Consult label for application restrictions.
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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