Golf Course Management

AUG 2014

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

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94 GOLF COURSE MANAGEMENT 08.14 Active ingredient Trade name/ company † Weeds controlled Comments † For use on putting greens Creeping bentgrass Mixed bent + Poa ‡ Hybrid bermudagrass 2,4-D + MCPP + dicamba Eliminate LO/Lesco Threesome/United Turf Alliance Trimec Classic Trimec 899 Trimec Southern Triplet Triplet Low Odor Triplet Hi-D Triplet SF TruPower2 TruPower3 broadleaf weeds • Do not exceed 1 fluid ounce/1,000 square feet on creeping bentgrass greens using 145 gallons/acre spray volume • Limit of 2 applications per year • May cause temporary injury • Do not apply when temperatures exceed 85 F (some labels state 90 F) • Label neither allows nor restricts applications to bermudagrass greens Yes Yes Yes 2,4-D + dicamba + quinclorac 2DQ/Quali-Pro broadleaf weeds • Do not apply this product when temperatures are greater than 90 F • Limit of 2 applications per year • Label neither allows nor restricts applications to bermudagrass greens Yes No Yes 2,4-D + MCPP + dicamba + pyraflufen ethyl 4-Speed/Nufarm RedZone 2/Lesco broadleaf weeds • Avoid applications during periods when turf is under stress due to high heat, humidity, or reduced moisture • Slight turf yellowing will disappear after about 1 week • Limit of 2 applications per site per year • Label neither allows nor restricts applications to bermudagrass greens Yes Yes Yes 2,4-D + triclopyr + dicamba + pyraflufen ethyl 4-Speed XT/Nufarm broadleaf weeds • Avoid applications during periods when turf is under stress due to high heat, humidity, or reduced moisture • Slight turf yellowing will disappear after about 1 week • Limit of 2 applications per site per year • Label neither allows nor restricts applications to bermudagrass greens Yes Yes Yes Carfentrazone QuickSilver T&O/FMC Corp. broadleaf weeds silvery thread moss • Adjust rate to 6.7 fluid ounces/acre to control silvery thread moss • Apply as often as every 2 weeks to putting greens infested with silvery thread moss at temperatures ≤ 85 F • Annual bluegrass can be damaged at rates greater than 2.0 ounces/acre • Use nonionic surfactant (NIS) at 0.25% (v/v). • Do not apply if Bensuec (bensulide) has been applied within the previous 75 days Yes Yes Yes Carfentrazone + MCPP + MCPA + dicamba PowerZone/PBI/Gordon broadleaf weeds • Label neither allows nor restricts applications to bermudagrass greens No No Yes Carfentrazone + 2,4-D + MCPP + dicamba SpeedZone/PBI/Gordon broadleaf weeds • Label neither allows nor restricts applications to bermudagrass greens • Limit of 2 applications per site per year No No Yes Dicamba Banvel/Arysta LifeScience Diablo/Nufarm broadleaf weeds • Label neither allows nor restricts use on greens • May cause injury to creeping bentgrass at rates greater than 0.5 pound ai/acre • As little as 4 fluid ounces/acre will provide adequate weed control Yes Yes Yes Diclofop Illoxan/Bayer goosegrass • Restricted-use pesticide • Product will no longer be available after December 2014 No No Yes Foramsulfuron Revolver/Bayer goosegrass annual bluegrass • Used to remove overseeded cool-season grasses on bermudagrass greens but will also control annual bluegrass and certain broadleaf weeds No No Yes Mecoprop (MCPP) Mecomec 2.5 + 4SL/PBI/Gordon MCPP-p 4 Amine/Nufarm broadleaf weeds • Do not apply when temperatures exceed 90 F Yes Yes No MCPP + 2,4-D + dicamba Trimec Bentgrass Formula/ PBI/Gordon broadleaf weeds • Contains less 2,4-D compared to Trimec Classic • May cause temporary injury • Limit of 2 applications per site per year Yes No No MCPA + MCPP + dicamba Trimec Encore/PBI/Gordon Tri-Power/Nufarm broadleaf weeds • Do not exceed 1.0 fluid ounce/1,500 square feet on creeping bentgrass greens using a spray volume of 5 gallons/1,000 square feet • Do not apply to bentgrass under stress • Do not apply when temperatures exceed 85°F • Slight yellowing will occur within a week • Label neither allows nor restricts applications to bermudagrass greens Yes No Yes Pronamide Kerb/Dow Agrosciences annual bluegrass select broadleaf weeds • Restricted-use pesticide • Label neither allows nor restricts applications to bermudagrass greens No No Yes Rimsulfuron TranXit/DuPont QP Rimsulfuron 25DF/Quali-Pro annual bluegrass and other cool-season species • Used to remove overseeded cool-season grasses on bermudagrass greens but will also control certain broadleaf species • Use nonionic surfactant (NIS) at 0.25% (v/v). No No Yes Sulfentrazone + 2,4-D + MCPP + dicamba Surge/ PBI/Gordon SureZone/United Turf Alliance broadleaf weeds • Label neither allows nor restricts applications to bermudagrass greens • Limit of 2 applications per site per year No No Yes Trifloxysulfuron Monument 75WG/Syngenta annual bluegrass sedge/kyllinga species select broadleaf weeds • Label neither allows nor restricts applications to bermudagrass greens • Use nonionic surfactant (NIS) at 0.25% (v/v) No No Yes † Herbicide labels that contain specific use instructions for putting greens should generally be regarded as having a higher level of safety (shaded green) than those that have labeling that neither allows nor restricts applications to putting greens (shaded yellow). Cells shaded red indicate that the herbicide is not labeled for use on that particular turf species. ‡ Putting greens where management practices are aimed at maintaining and not reducing annual bluegrass. Table 2. Post-emergence herbicides labeled for use on putting greens. For each product, consult the label for the recommended use rate. Post-emergence herbicides for putting greens PBI/Gordon Nufarm

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