BVMG Types
This group has high speed yield potential and generally produces medium to good quality turf in the absence of stripe smut. The BVMG Types generally are very stemmy in early spring. This group also has poor winter color, long winter dormancy, and suffers from significant billbug damage.
Examples: Dragon, Baron, Victa, Merit
Shamrock Type:
Similar to the BVMG Types with high seed yield potential, but unlike the BVMG, Shamrock types exhibit good resistance to stripe smut.
Examples: Guinness and Shamrock