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Managing Bermuda Grass Golf Greens

Managing Bermuda Grass Golf Greens. Why Bermuda?. Location C4 grass verses C3 grass. Problems with Bermuda. Dormancy Over seeding Spring Transition Winter kill Shade issues (8 hours of full sun). Bermuda Cultivars. Tiff 328 Tiff Dwarf Champion Tiff Eagle Mini Verdi .

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Managing Bermuda Grass Golf Greens

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  1. Managing Bermuda Grass Golf Greens

  2. Why Bermuda? • Location • C4 grass verses C3 grass

  3. Problems with Bermuda • Dormancy • Over seeding • Spring Transition • Winter kill • Shade issues (8 hours of full sun)

  4. Bermuda Cultivars • Tiff 328 • Tiff Dwarf • Champion • Tiff Eagle • Mini Verdi

  5. Green Construction for Bermuda • USGA construction best • Not as critical for bermuda as it is for bent

  6. Cultural Practices for Bermuda Greens

  7. Mowing • .125-.250 inches • Remove clippings • Vary mowing pattern

  8. Irrigation and Water Management • Deep and infrequent • Not as sensitive to water stress as bent grass • Water quality is important

  9. Fertilization • Fertilizer should be applied in amounts to accomplish adequate growth and turf quality • Timing is important turf needs to be actively growing (based on minimum and optimum temperatures) • Excessive amounts will affect ball roll • High traffic greens fertilize for recovery

  10. Nitrogen Rates • 8-24 lbs of N per year • Establishment 25 percent more N • Low rates for areas with less intensive play, lower budget, shorter growing season • High rates for areas with a longer growing season, lots of play or damage from pest

  11. Frequency • Very high 1 lb N every 7-14 days • High 0.5 lb N every 7-14 days • Low 0.5 lb N every 14-21 days • Beware of excessive thatch and slower ball roll

  12. Frequency for non over seeded Bermuda • Fall 10-15 • Winter 0 • Spring 35 • Summer 50-55

  13. Over seeded Bermuda Greens • 0.5 lbs of N every 2 to 3 weeks • Fertilize for good color and growth • Use Iron and Manganese to obtain good color instead of N

  14. Frequency for over seeded Bermuda • Fall 15 • Winter 15 • Spring 25 • Summer 45

  15. Other elements • Potassium one half to equal that of Nitrogen • Phosphorus 0-4lbs per year

  16. Fertilizer Sources • Granular • Liquid • Or combination of both • Spoon feeding

  17. Auxiliary Cultural Practices

  18. Aerification • Min of 3-4 core aerifications per year • More frequent for newer cultivars • Every 4- 8 weeks

  19. Spiking and Slicing • Spiking 1 inch deep slicing 2- 4 inches deep • Less surface disruption • Relieves surface compaction • Promotes better water infiltration • Breaks up soil surface crusting and algae layers • Every 7-14 days

  20. Vertical Mowing • 0.5-1 inch spacing • Depth different objectives can be met by adjusting the depth • Shallow grain reduction and break up of cores • Deep stimulate new growth, reduce thatch accumulation, and seed bed preperation

  21. Vertical Mowing • If dethatching is the objective set to depth of thatch blade spacing 1-2 inches • For new growth set to depth of stolons and now deeper

  22. Frequency of Vertical Mowing • Depends on thatch accumulation • Begin when thatch levels reach 0.25 to 0.5 inches • Deep vertical mowing should be followed by topdressing to prevent roots and rhizomes from drying out • Vertical mow after the dew has dried, remove debris, and irrigate • Fertilize 5-7 days afterward with 1 lb of N

  23. Topdressing • Light and frequent • Heavy after aerification or vertical mowing • Smoothes surface • Encourages thatch break down • Use same soil that the turf is growing in

  24. PGRS • Improved putting speed • Help with over seeding • Last 3-4 weeks

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