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Colorant Application
• Study conducted on two putting greens during fall
2008 and winter 2009 in Raleigh, NC
– Completely dormant ‘Miniverde’ bermudagrass
– Semi-dormant ‘Diamond’ zoysiagrass
• All 12 colorants applied at 80 gallons per acre (gpa)
using a CO
2
– pressurized sprayer
– Initial application: 11 November 2008
– Second application: 9 January 2009
*Five of the colorants were also applied at 40, 120, or
160 gpa