Dr. Leah Brilman — Dr. Gwen Stahnke Innovative Alternative Turfgrass

Dr. Leah Brilman — Dr. Gwen Stahnke Innovative Alternative Turfgrass

Innovative Alternative Turfgrass
Traditional golf course turf species Strengths and weaknesses Primary use site and geographic area Alternative turfgrass species Where to use - golf course and geographic area Why to use on golf course Reduction in water usage Reduction in chemical usage Management changes Different look Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Traditional golf course turf species Hybrid bermudagrass Greens, tees, fairways Perennial ryegrass Fairways, tees, roughs Permanent and overseeding Creeping bentgrass Kentucky bluegrass Greens, fairways, roughs Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Alternative turfgrass species Seeded bermudagrass Fairways, roughs Repair usage American buffalograss Combined with fine fescues Zoysia - seeded and vegetative Seashore paspalum - seeded, vegetative Greens, fairways, roughs - separate course Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Alternative turfgrass species Colonial (browntop) bentgrass Fairways, possibly roughs, greens overseeding Velvet bentgrass Greens (permanent and overseeding), tees, fairways Fine fescues Chewings fescue - fairways, roughs, overseeding Slender creeping red fescue - fairways, roughs Strong creeping red fescue - fairways, roughs Hard fescue - roughs, fairways (?) Blue and Sheeps fescue - roughs Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Alternative turfgrass species Transitional ryegrass Fairways, roughs Northern and overseeding uses Tufted hairgrass . Fairways, roughs . Swales on edges of rough . Inside wetland areas Tall fescue Roughs, fairways? Texas X Kentucky Hybrids Roughs, fairways Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Hybrid Bermudagrass Strengths
Heat and drought tolerant - best summer performance Self-repairing Salt tolerant Low water use Uniform appearance with certified sod or sprigs High wear tolerance Many chemical available for weeds and insect control Cultivars developed for greens, fairways and more northern locations Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Hybrid Bermudagrass Weaknesses
Must overseed for winter color in most areas - problems with transition, weakened bermuda Poor spring playability without overseeding in many areas Low tolerance to shade Spring dead spot susceptibility in many cultivars Many times sod or sprigs not certified - non-uniform Dense greens types - specialized thatch control Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Creeping Bentgrass Strengths Tolerates low height of cut
Various densities in new cultivars - some adapted to green usage only Repairs through stolons Can be used greens, tees and fairways High saline tolerance - lower at greens height Excellent winter hardiness Good to excellent heat tolerance Responds well to growth regulator programs Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Creeping Bentgrass - Overseeding
Strengths Small seed (good for ultradwarf greens) High putting quality High salt tolerance – effluent & drought Moderate transition - cultivar dependent Can persist into early summer Medium establishment in Fall Dark to medium blue green color Excellent if have heavy play in early summer Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Creeping Bentgrass Weaknesses
Slow divot recovery in summer - varies by cultivar Use divot-filling program with Chewings fescue Thatch must be controlled - added cost Best on fairways with lightweight mowing - added cost Moderate fungicide program - dollar spot, brown patch, snow mold, take-all, anthracnose New cultivars improved disease resistance Good irrigation system required Bentgrass can creep into other areas - change look Tight fairway lies not liked by all golfers Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Perennial Ryegrass Strengths Good playability - ball sits up well
Tolerance to a wide range of herbicides Nice dark green color Inexpensive seed Rapid germination and seedling vigor Easy to repair with new cultivars Responds well to growth regulators Resistant to different diseases than KBG/TF Endophyte-enhanced Broad range of herbicides for weed control Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Perennial Ryegrass Weaknesses Susceptible to many diseases
Gray leaf spot susceptibility in older varieties Red thread Crown rust Dollar spot Brown patch Overdominate other components Bunch-type growth Reduced stress tolerance Stemminess in spring Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Perennial Ryegrass Weaknesses Not enough winter-active growth
Need more decumbent, spreading growth High nitrogen requirements Poor red thread resistance High water requirements Easily invaded by weedy grasses Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Perennial ryegrass Gray leaf spot resistance
Important in Midwest, transitional zone and now California California reports in both permanent and overseeded turf - verified in Bay Area Seedlings most vulnerable Warm, moist conditions, especially with less hours of sunlight Rapid advances in resistance Warm, above 68 degrees, with 3 hours leaf wetness can start to grow Turf looks droughty at first

Gray Leaf Spot Resistance
2004 Perennial ryegrass NTEP Gray leaf spot - Rutgers University

Seeded Bermudagrass Strengths Rapid establishment
Can be used to rapidly repair damage Drought resistance improved over hybrid bermuda Higher salt tolerance than hybrid Cold tolerant cultivars available Resistance to Spring Dead Spot Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seeded Bermudagrass Weaknesses
Quality not quite as good as hybrid bermuda - getting closer Not as uniform as certified hybrid Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Divot Repair Data Seeded bermudagrass TifWay 419 TifSport

Spring Dead Spot resistance
Yukon & Midlawn Highest resistance Riviera & TifSport Moderate resistance Princess 77 & Tifway Most susceptible As you can see, Spring Dead Spot resistance is a real threat to bermudagrass as well as other turf grasses. Of the bermudas, Yukon and Midlawn hybrid are the most resistance to this, whereas Princess and Tifway are the most susceptible.

Salt Stress – Poor Drainage, Effluent Water or Poor Quality Well
In general, the Seeded bermuda varieties (Cynodon dactylon) have proven more salt tolerant than the Hybrid bermuda varieties (C. dactylon x transvalensis)

Conversion From Cool Season Issues to Overcome
Ryegrass competition – shade, toxicity, etc. Soil temperature – bermuda germination Budget vs. adequate seeding rate – not excessive Budget vs. adequate water & fertilizer Transition & grow-in period smoother to retain playing surface reduced brown grass period? traffic during seeding & grow-in?

Conversion From Cool Season Techniques and Recommendations
Glyphosate – (RoundUp, etc.) Other Herbicides – Pronamide, Sulf. Ureas, etc. Plant Growth Regulators (PGR’s) Simple Interseeding – NOT effective unless many bare areas already exist – uneven results Summer Heat Critical to All Methods Pre-Emergent use on greens, tees, etc. to protect

Glyphosate = Best and Fastest
Knocks out competition immediately but gradual color loss Plant bermuda seed same day you spray 20-40% bermuda within 3 weeks after seed 60-90% bermuda within 8 weeks after seed Negative – brown period before bermuda covers

Cool Season Selective Herbicide Monument, Manor, Revolver, etc.
More gradual transition to bermudagrass Plant bermuda seed 1 week after herbicide app.. Some initial seedling burn possible Benefits outweigh seedling harm 10-20% bermuda within 3 weeks after seeding 40-70% bermuda within 8 weeks after seeding 90+% bermuda within weeks after seeding Benefit – more gradual, less visible disruption

PGR’s can be effective…….
Must apply timely with bermuda soil temp. Timing critical with hot temperatures increasing PGR application rate to slow the rye / blue growth for 6 to 8 weeks or longer Reduce traffic & mowing on seeded areas IF ALL GOES PERFECTLY, this can a very effective technique for smooth conversion to bermudagrass Scalp cool season close before seeding after spray

Seeded Bermuda Establishment
Establishment of seeded bermuda Establish early in summer, can go later than zoysia Seed at 12 to 49 kg/ha, higher if coated seed Use at least 49 kg/ ha of N per month Herbicides Quinclorac 0.84 kg/ha 0+ weeks after emergence Dithiopyr 0.56 kg/ha 1+ weeks after emergence It will blend well with Turf type Tall Fescue for year round green and is excellent for most turf applications.

Seeded Turf-Type Bermuda Missouri - Conversion from Rye / Blue
AFTER – Spring 1 year after killing cool season and converting to seeded bermuda. SUCCESS!! Before - Poor turf conditions after years of drought, heat, disease & other stresses

Seeded Bermudagrass Where to use How to use
Fairways Roughs How to use Repair hybrid bermudagrass after overseeding Lower maintenance sites Combine with strong creeping red fescue or slender for green without overseeding (not for hottest locations) Replace cool-season turf Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

American Buffalograss
Strengths Vegetative and seeded cultivars Drought resistant and cold tolerant Prefers heavy soils with high alkaline soil tolerance Aggressive stoloniferous habit Dense sod-forming capabilities Extensive fine-branched roots Leaf blades roll tightly to limit transpiration ( less than 6 mm (0.24 in) per day. Found on rocky, calcareous slopes mixed with blue grama, sand dropseed, sideoats grama, hairy grama and little bluestem. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Weaknesses Adapted primarily to arid regions Does not do well on sandy soils Is not shade tolerant Will thin out if overwatered Needs warmer soil temperatures to spread Slow establishment rate Short growing season Tan to grey when dormant High seed cost Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Buffalograss is dioecious, both male and female plants Female plant have more desirable turf characters Shorter, denser leaves, more stolons, shorter internodes Male flowers are produced above grass and require more frequent mowing to keep a smooth look to the turf “Buffalograss will survive the greatest hardships and is About the last species to succumb under excessive use” (Beetle, 1950) Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Male Plants Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Female plant Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Where to use Fairways Roughs How to use - alone - seeded with blue grama or other warm season native grasses in the rough. - overseeded with blue or fine fescue, rough or fairway Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seeding Research at Univ. of Nebraska showed best turf quality with fall overseeding and blue fescue at 20 g m-2. It gave 3 months more green color than the monostand of buffalograss . Fine-leaved fescue seeded in fall also gave good turfgrass quality. Seeding with fine fescue gives more green color spring and fall, buffalograss is green in summer. Composition of the mixture stabilized near 75 to 80% fescue and 20 to 25% buffalograss 2 yr after overseeding. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Plugging or sodding Plugs should be 2 inches (0.8 cm) in diameter, 2.5 inches (1 cm) deep. Maximum spacing is 24 in. (60 cm) apart. Mow at a 2 to 3 inch height during establishment. Sod of older cultivars (Texoka, Sharps)should be harvested 2 to 3 inches deep, while improved types (‘609’, ‘315’, ‘378’) can be harvested shallower. Sod may exhibit an off-color appearance during first few weeks after planting. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Establishment Establish early in summer Use 49 kg/ha of N for first 3 months to establish -Back off on fertility depending on use after it is established Vegetative - Sod - Do not roll sod, it will bruise the turf - Plugs – Plant plugs on 4-5 cm (10 –12 inch) centers Seed - Seed at kg/ha (1-2 lb./1000 sq. ft.) - Treated (KNO3) seed will germinate in 7 to days Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Management Mowing – 0.5 – 4 inches for golf courses Watering – Deep soak once a month July-Sept. for higher maint. -Soak before winter id soil is dry for low maintenance. Fertilizing – June 15/30 is best; 2nd app. July/August -1-2 lbs N/1000 sq. ft.; Less on low maintenance areas Weed Control – Avoid frequent watering, short mowing and over fertilizing - Avoid 2,4-D and related products in the spring, when temps are above 80 F and on first year turf - Control broadleaf weeds in the fall - Use labeled pre-emergence weed control products Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Available buffalograss cultivars
Cultivar Sex Adapt. Prop. Perform. Legacy F N/T Sod/Plug Excellent Scout F S/T Sod Excellent 609 F S/T Sod Excellent 315 F N/T Sod/Plug Good 378 F N/T Sod/Plug Excellent Prairie F S/T Sod Good Stampede F S/T Sod Good Cody M/F N/S/T Seed Excellent Bison M/F N/T Seed Good Texoka M/F N/T Seed Fair Sharps Imp. M/F N/T Seed Fair Topgun M/F S/T Seed Good Plains M/F S/T Seed Fair N = Northern U.S.; S = Southern U.S.; T = Transition Zone. ( NTEP Evaluation, 1999)

Seeded Zoysiagrass Strengths Less expensive than sod
Seed and sod very low maintenance once established Winter hardy / cold tolerant Medium texture, very dense Dark green color - Shade tolerant Blends well with Turf-Type Tall Fescues Faster establishment by seed than plugs or sprigs Low mowing requirement Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seeded Zoysiagrass Weaknesses Slow establishment
Not well adapted to overseeding Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seeded Zoysiagrass Establishment of seeded zoysia
Establish early in summer Seed at 49 to 98 kg/ha Use at least 49 kg/ ha of N per month Herbicides Siduron PRE 6.7 kg/ha Quinclorac 0.84 kg/ha 0+ weeks after emergence Dithiopyr 0.56 kg/ha 1+ weeks after emergence It will blend well with Turf type Tall Fescue for year round green and is excellent for most turf applications.

Zoysiagrass Seeding 18 days 8 weeks

Turf-Type Zoysia Establishment
4 months after planting NTEP, Arkansas Plugs on 1 foot centers Seeded plot 1 lb. Per 1,000 sq.ft.

Seeded Zoysiagrass Where to use How to use Fairways Roughs
Golf fairways, tees and roughs, sod farms, parks, home lawns Edges of bunkers - leave dormant Mixed stand with turf-type tall fescue Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seashore Paspalum Strengths
Paspalum vaginatum – many sod varieties available Research on wear tolerance being done Extremely salt tolerant – native to tropics/subtropics High quality turf in adapted areas Seeded types coming on market - Seaspray from Turf Seed. SRO initiated production Seeded types rapidly cover after germination Tolerant of low light intensity such as cloudy tropics or some shade Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seashore Paspalum Weaknesses
Difficult to winter overseed - Dr. Kopec and others in USA - researching cultural practices Sod types need water with reduced salt levels during sprigging and establishment Research being done on salt levels for seeding Some certified cultivars, others not Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Seashore Paspalum Where to use How to use
Tropical environments especially low light ones Will tolerate some freezing weather if mature Not as cold tolerant as highest cold tolerant bermudas How to use Greens - improved vegetative cultivars Fairways and Tees - vegetative and seeded types Roughs - vegetative and seeded types Seeding rates 1/2 to 1 lb / 1000 sq. ft. Some seed dormancy Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Colonial Bentgrass Strengths Snow mold resistance
Low nitrogen requirement Snow mold resistance Dollar spot resistant against most strains Less thatch than creepers Best at low fertility Better wear resistance than creepers Hold ball upright Low water use - in Utah maintain density 50% ET Use with fine fescues Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Colonial bentgrass In fairway or tee usage best combined with
Chewings and/or creeping red fescue Use fine fescues in divot repair mixes More sensitive to ethofumesate Varieties - SR 7150, SR 7100, Bardot, Egmont, Tiger, Tiger II, Alistair, Glory, Heriot, Revere, Viter Use low fertility

Colonial Bentgrass Dollar Spot Ratings 1999-2002 Data
1-9, 9 = no disease, Mean of ten locations Cultivar Species Mean Resistance Tiger II Colonial Glory Colonial SR Colonial SR Colonial L-93 Creeping Penncross Creeping Penn G-6 Creeping SR Creeping Princeville Creeping Century Creeping 5% Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Colonial Bentgrass Pink Snow Mold Resistance 1999-2002 Data
1-9, 9 = no disease, Mean of three locations Cultivar Species Mean Resistance Tiger II Colonial Glory Colonial SR Colonial Penn G-6 Creeping SR Colonial Penncross Creeping SR Creeping L-93 Creeping Seaside II Creeping 5% Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Colonial Bentgrass Weaknesses Not very salt tolerant
‘Highland’ bentgrass is a dryland bent not a colonial Early literature often based on dryland bent Brown patch susceptibility - does not kill Reduced stolons and some with rhizomes - need to use seed with Chewings fescue for divot repair Bright green color - new types such as SR 7150 darker More sensitive to ethofumesate Less herbicides registered for use Variable Take-all resistance Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Colonial Bentgrass Where to use How to use
Overseeding combined with Poa trivialis, velvet Fairways - California, PNW, Mountain, Northeast, New England, Mid-west Roughs - higher mowing How to use Combine with fine fescues - select fine fescue species and cultivars with fairway performance Use 5 to 10% colonial bentgrass by weight Can add in Kentucky bluegrass Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Colonial Bentgrass - Overseeding
Small seed (good for ultra-dwarf bermudas) Medium Fall establishment Medium dark green High wear tolerance Good Spring transition High turf quality - High density Less expensive / lower seed rate Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Velvet Bentgrass Strengths High quality
High density and fine leaf texture Disease resistance - dollar spot, brown patch Reduced water requirement - 40 to 60% ET Wear tolerant Excellent drought and heat resistance Best shade tolerance Low fertility (after established) Best in acid sands or soils - needs acid fertilizer and iron in alkaline conditions Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Velvet Bentgrass Percent Dollar Spot Lexington, KY 2004
Mean of 5 ratings, May through August Cultivar Species Mean Per Cent Independence Creeping Penncross Creeping T-1 Creeping Penn A-1 Creeping Tyee XD Creeping Creeping Greenwich Velvet Declaration Creeping SR Velvet Villa Velvet 5% Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Velvet Bentgrass Weaknesses Seedling Pythium - buy treated seed
Not salt tolerant Copper spot susceptible Requires acid soil conditions Slower to repair damage Need thatch control program Less herbicides registered for use Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

1-9, 9 = No disease, NJ NTEP Trial
Velvet Bentgrass Copper Spot Ratings 2004 1-9, 9 = No disease, NJ NTEP Trial Cultivar Species Mean Ratings Tyee XD Creeping Penn A-1 Creeping Creeping Declaration Creeping Legendary Velvet T-1 Creeping Greenwich Velvet Penncross Creeping SR Velvet 5% Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Velvet Bentgrass Where to use How to use
Greens - Northeast, New England, PNW, MidWest - with acid sands. Southeast, Southwest Overseeding blends - germinates at low soil temperatures and light. Repair overseeded greens Tees - combine with fine fescues. Great in shade. Cultivars - SR 7200, Vesper, Greenwich, Legendary How to use Best seeded in June and August in New Jersey Competitive against Poa annua Bright, medium green color - not blue-green Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Velvet Bentgrass - Overseeding
Very small seed size (best for ultradwarfs) Best putting surface Highest wear tolerance, high density Medium establishment Germinates well at low soil temperatures Medium dark green – Mixes well Best low light or shade tolerance Excellent Spring transition Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Velvet Bentgrass - Overseeding
Creeping bentgrass SR 7200 Velvet bentgrass

Fine Fescue Usage Add into overseeding blends for salt / Labyrinthula tolerance High stress tolerance - significant improvements Use for low maintenance turf alone or as major percentage in blend Improved cultivars allow use as high quality turf Rough use most prevalent Fairways usage alone or in mixtures Low water use, less fertilizer, reduced mowing, fewer diseases All species can be purchased endophyte -enhanced Not just for shade mixtures Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Fine Fescue Usage Species of fine fescues Chewings fescue
Slender creeping red fescue Strong creeping red fescue Hard fescue Blue or ‘Sheeps’ fescue True Sheeps fescue Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Fine Fescue Usage Low maintenance fairway trials - WI, MN, IL
Colonial bentgrass + fine fescues Fine fescues mixtures Individual fine fescue cultivars Organic and synthetic fertilizers No irrigation, wear applied Highest quality improved Chewings, Mixture of improved cultivars of fine fescues Fine fescues better under drought Organic maintained higher fine fescue, faster divot recovery with synthetic Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Species for Overseeding
Ryegrasses Perennial, intermediate, annual Fine fescues Chewings, slender creeping red, strong creeping red, hard Bentgrasses Velvet, colonial, creeping, dryland, Idaho Bluegrasses Rough bluegrass, Kentucky, others Other species

Why overseed with different species?
Use mixtures for genetic diversity Resistance to diseases and stresses Color contrast Improved transition Improved quality Smaller seeds Potential cost savings

Why overseed with different species?
Labyrinthula on Poa trivialis in SC

Fine fescues - Overseeding
Very fine with stiff texture Good wear tolerance Winter-active growth Improved transition with high quality Rapid germination - Chewings and red Resistance to Labyrinthula fungus Medium seed size

Fine fescues - Overseeding
High salt tolerance Color and texture contrast Increase genetic diversity of mixtures Mixtures with perennial ryegrass, bentgrasses, Poa trivialis Seeding rates (alone) - Do not mow too soon Greens lbs./1000 sq. ft. Tees lbs./1000 sq. ft. Fairways lbs./1000 sq.ft. - Excellent

Chewings Fescue Strengths
Rapid germination - close to perennial ryegrass Winter-active growth Heat tolerance - improved cultivars Tolerant of low height of cut - most improved cultivars Shade tolerance Recent studies on low maintenance fairways in WI, MN and IL showed highest performance by Chewings WI NTEP Fairway Trials with wear applied Chewings fescue was highest ranked Good summer patch, leaf spot resistance Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Chewings Fescue Weaknesses Bunch-type growth
Seeding needed for recovery if damaged Red thread resistance variable - select improved cultivars Endophyte-enhanced cultivars show improved dollar spot resistance Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Chewings Fescue Comparison of fine fescue with Penncross creeping bentgrass in fairway under drought conditions WI Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Chewings Fescue Where to use How to use
Fairways - Northern United States, PNW, Coastal CA Fairways - Overseeding blends with perennial ryegrass Roughs - Northern through transition zone. How to use With all bentgrasses for divot repair or greens repair Low maintenance fairways Roughs - shaded, ornamental seedheads Overseeding blends - better transition, fine textured In blends with Kentucky bluegrass for fairways/roughs Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Slender Creeping Red Fescue
Strengths High salt tolerance Resistance to rapid blight Short rhizomes for repair Tolerant of short cutting heights for fairways Improved ones with high heat tolerance Excellent fall, winter and spring color Extensively used in Europe for fairways . European types have less heat tolerance, higher density, low seed yields. Short growing height Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Weaknesses Brighter green color - not as dark green Limited number of cultivars with endophytes New cultivars tolerate heat in Central Valley of California - others not enough heat tolerance for some areas Most cultivars with good resistance to leaf spot and red thread, but poor resistance to dollar spot and summer patch. Newest cultivars improved resistance to all diseases. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Where to use Fairways - areas with salt problems overseeding blends and permanent turf in cool season areas Greens and tees for overseeding in salt areas - used for permanent greens in UK Roughs - mown and unmown. Important component in links style blends Besides parking lots, roadways where salt is used How to use Blends with other fine fescues, colonial bentgrass, bluegrass and perennial ryegrass Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

The application of Monument and Tranxit (Both one time and two times)1 week before seeding had no effect on the germination of perennial ryegrass, Chewings fescue, or slender creeping red fescue. The application of Barricade and Dimension 4 weeks before seeding slowed the germination of all species but all of them have germinated within two weeks. The Chewings seemed less influenced by Barricade than the ryegrass germinating within one day of the control. The Chewings and slender creeping red fescue were 1 to 3 days later germinating than the ryegrass. They appear slower than that because the seedlings are smaller. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

We seeded again 5 weeks after application and again the Barricade and Dimension are slower germinating than the control for all species but all are starting to germinate. Barricade herbicide applied 7.5 weeks before seeding had no difference on the establishment time or rate of Hawkeye perennial ryegrass, SR 5100 Chewings Fescue or Dawson slender creeping red fescue. All species germinated on the same day as the control and established as rapidly as the control. In all cases, both control and Barricade treated, the fescues germinated 1 to 2 days behind the ryegrass. Dimension was still slightly slowing the germination of all species. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Dawson slender creeping red fescue Perennial ryegrass

Strong Creeping Red Fescue
Strengths Long rhizomes for rapid repair New cultivars show excellent heat tolerance New cultivars tolerate mowing at 1/2 inch with wear New cultivars have high summer patch resistance Very compatible in blends with Kentucky bluegrass, perennial ryegrass, fine fescues and colonial bentgrass Quick germination Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Weaknesses Older material such as common creeping red fescue or Boreal does not perform like improved material Leaf spot resistance weak in older cultivars Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Where to use Northern United States through transition zone Lawn height Central Valley, CA , OK, KS Full sun and Shade How to use Fairways - with Kentucky bluegrass, fine fescues, Colonial bentgrass and perennial ryegrass Roughs - alone or with bluegrass or fine fescues Divot repair from rhizomes useful in blends - still use seed Permanent combination with buffalograss Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Hard Fescue Strengths Very drought tolerant
Excellent performance in dry shade, under trees New cultivars improved summer patch resistance - can be used in fairways Slow growth Low fertility requirement Lower growing ornamental seedhead for roughs Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Hard Fescue Weaknesses Slow germination and establishment
More winter dormancy - slower spring green-up Less wear tolerance Summer patch susceptibility - new cultivars better Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Hard Fescue Where to use How to use Transition zone north
Georgia north in shade in rough Fairway northern areas, PNW How to use Fairways with other fine fescues or colonial bentgrass Roughs alone or with other fine fescues Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Blue and Sheeps Fescue Strengths Superior drought tolerance
Ornamental seedheads Excellent shade tolerance Most marketed are closely related to hard fescues - only one true sheep's fescue - Quatro Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Blue and Sheeps Fescue Weaknesses Slow germination and establishment
Very blue color can segregate in blends (depends on desired look) Longer winter dormancy Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Blue and Sheeps Fescue Where to use How to use
Low maintenance sites - roughs Transition zone North Dry sites How to use Shady sites - under trees Roughs Blend with flowers Blend with other fine fescues Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Transitional Ryegrass
Percent Cover Annual, Transitional, Perennial + mixtures. Seeded Feb. 20, Puyallup, WA. Treatment March March April April April April Axcella AR Transeze TR PR Blend TR + PR AR + PR Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Strengths Very quick establishment Less expensive seed Lasts only one to two seasons Germination and growth at cooler temp. Moderate green color Less mowing requirement than annual Does not overdominate mixtures Can be used with Kentucky bluegrass as nurse grass Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Transitional ryegrass
PR TR AR PR/TR

Weaknesses Poor mowing quality in spring Lighter green than current perennial ryegrass varieties Low salt tolerance Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Where to use Overseeding south Nurse crop north How to use Overseeding - to improve transition Nurse grass Repair during colder times of the year Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Turf-type Tall Fescue Strengths
Excellent wear tolerance once established Drought tolerance useful many sites Can be mown at 1/2 inch Shade tolerant Tolerates broad range of soils Speed of establishment New data Ohio State - new varieties can maintain quality with wear after 15 weeks, spring establishment Establishes slower than perennial rye faster than bluegrass Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Turf-type Tall Fescue Weaknesses Bunch-type growth
Speed of repair slow Rhizomes in new varieties may help Need more winter-active growth Brown patch susceptibility - in enclosed shade can severely damage Old cultivars lacked density and texture, new cultivars finer textured, darker green, higher density Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Turf-type Tall Fescue Where to use How to use
Roughs - mown for drought avoidance Fairways How to use Best results when blended with Kentucky bluegrass - 85 to 90% Tall fescue Blending with Texas x Kentucky hybrids may be useful in stress sites Brown patch reduced in blends Establish in spring or late summer Provide protection against Pythium and seedling brown patch Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Tall Fescue Turf Rhizome
4 inch wide divot cut May 4 , 6 weeks growth Tall fescue rhizome 3 inches from mother plant Not as many as in bluegrass More rhizomes observed in fall than spring

Texas X Kentucky Bluegrass
Texas bluegrass heat and drought tolerant, extensive and deep rhizomes Kentucky bluegrass turf quality 1st generation low fertility, low germination Backcrossed to Kentucky bluegrass More extensive rhizomes Greater heat and drought tolerance Must evaluate for diseases, germination vigor, apomixis Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Strengths High shear strength Excellent rhizomes = good recovery Good wear tolerance in Ohio - not high Rutgers Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Weaknesses Some cultivars slower establishment Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Texas X Kentucky bluegrass
Rhizomes on young spaced plants Deep rhizomes contribute to recovery Bluegrass usage further south Top rated for shear strength NTEP

Where to use Roughs Fairways How to use Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Kentucky Bluegrass Strengths Self-repairing High recuperative ability
Dense stand, high quality Excellent mowing quality High cold tolerance New cultivars that tolerate low height of cut for fairway Choose aggressive, wear tolerant types Some cultivars with improved drought tolerance Excellent choice for roughs Less fungicides Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Types of Kentucky Bluegrasses
Compact Types CELA Type Compact BVMG Type Midnight Shamrock type America Cheri Type Aggressive Type Julia Type Bellevue Type Common Type Mid-Atlantic Type Other Type

Kentucky Bluegrass Weaknesses
Poa annua invasion - less options in herbicides Slow germination and establishment Older varieties do not take low cut - loss of density Shade tolerance cultivar dependent Bluegrass billbugs Must mix cultivars carefully - use different types to match strengths and weaknesses Not adapted to some regions Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Tufted Hairgrass – Deschampsia spp.
Hairgrass species are found in temperate, arctic and Antarctic regions (Gould & Shaw, 1983) Used for a forage in the northern alpine regions. In the past have been used mainly for wetland restoration riparian plantings and reclamation (Alderson & Sharp, 1994) It is one of the first colonizers in a disturbed area, especially under acid soil conditions (pH ) or heavy metal concentrations. Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Strengths - Tolerates acid soils and heavy metals - Establishes well on disturbed sites - Tolerates low light intensities - Tolerates wet or waterlogged sites - Low nitrogen requirement - Useful in high wear situations with low light - Stand is dense and keeps out annual bluegrass longer than Kentucky bluegrass or perennial rye Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Weaknesses - Grey-green color - Plants appear rather prostrate and have much lignin in the leaf blades which makes the plant more coarse in appearance. - If heavy wear late in the year, annual bluegrass may fill in before the hairgrass does - Seed is light and fluffy and swirls quite a bit during the seeding process. About the same size as fine fescue seed - Billbug problems when under summer stress (Northeast U.S.) Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Where to use - temperate region - arctic region How to use - roughs, edge of roughs for filtration - natural or manmade wetlands - shady, wet areas - acid soil conditions - disturbed soil areas Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

Biological Filtration of Nutrients Trophy Lake Golf and Casting Port Orchard, WA Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

TLGC, Hole 1 Dr. Gwen Stahnke - Washington State University Puyallup, WA Dr. Leah A. Brilman - Seed Research of Oregon

TLGC, Hole 1

Dr. Leah Brilman — Dr. Gwen Stahnke Innovative Alternative Turfgrass

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Dr. Leah Brilman — Dr. Gwen Stahnke Innovative Alternative Turfgrass

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