Despite the fact that yield data for the harvests was not compiled, there was an obvious enhancement of coloration for both Vitazyme (at veraison) + Ethrel (at coloration) treatments versus the control. Based on harvest dates the 0.4 liter/ha Ethrel rate along with Vitazyme (Treatment 1) advanced the first harvest by 7 days, whereas the first control treatment harvest started 8 days after the first Vitazyme + Ethrel harvest. These Crimson Seedless grapes profited greatly from these combined treatments to gain more prof- it for the grower through earlier export marketing, The earlier coloration also resulted in one less harvest for both Vitazyme + Ethrel treatments than for the control treatment.