Oregon State UniversityTurfgrass Management

Research and Program UpdateResearch and Program Update

Tod Blankenship, CGCS

How would you answer these questions?

Question 1:

How would you answer these questions?

Question 1:

How would you put a giraffe in a refrigerator?

CCorrect Answer:

Open the refrigerator, put in the giraffe, closethe door.

Question tests whether you tend to do simpley pthings in overly complicated way

How would you answer these questions?

Question 2:

How would you answer these questions?

Question 2:

How would you put an elephant into arefrigerator?refrigerator?

Correct Answer:

Open refrigerator, take out giraffe, put inelephant and close door.

Question tests your ability to think through therepercussions of previous actionsp p

How would you answer these questions?

Question 3:

How would you answer these questions?

Question 3:

The Lion King is hosting an animal conference.All animals attend except one Which one?All animals attend, except one. Which one?

Correct Answer:

The elephant. The elephant is in therefrigerator. You just put him in there.

Question tests your memory

How would you answer these questions?How would you answer these questions?

Question 4:Question 4:

There is a river you must cross, but it is known to befrequented by crocodiles and you have no boatfrequented by crocodiles and you have no boat.How do you manage?

Correct Answer:Correct Answer:

You jump into the river and swim across. All thecrocodiles are attending the animal conferencecrocodiles are attending the animal conference.

Question tests whether we learn from our mistakes

College of Agricultural SciencesCollege of Agricultural Sciences

• college being downsized from 14 to 7 departments + 1 school

• Horticulture Department is being combined with the Crop & Soil Science Department to form the School of ??? (name yet to be decided)

• Russ Karow (CSS) will be the director of the new school and Anita Azarenko (Horticulture) will be the associate director

Horticulture DepartmentHorticulture Department

• total of 127 horticulture students enrolled in classes this f llfall

• environmental landscaping and viticulture & enology student numbers growingstudent numbers growing

• currently 26 students pursuing turfgrass management optionoption

• 9 students graduated last year, will have only 1 student completing their degree this academic year

Courses Taught by Robg y• Fall Hort 112* – Intro to Hort (2)

Hort 314 – Principles of Turf Maintenance (4)

• Winter Hort 405 – Turfgrass Pest Management (3)

Hort 412* – Career Exploration (1)

• Spring Hort 360 – Irrigation (4)• Spring Hort 360 – Irrigation (4)

Hort 418 – Golf Course Maintenance (4) *Co-taught with Kelly Donegan

OSU Turf Program TeamOSU Turf Program Team

• Rob Golembiewski – Assistant Professor

• Brian McDonald – Research Technician

• Tod Blankenship CGCS M S Student/Farm Manager• Tod Blankenship, CGCS – M.S. Student/Farm Manager

• Ty Patton – M.S. Student

• Stan Baker – Ph.D. Student

2010 Irrigation Zones and TrialsOregon State University (updated May, 2010)

Irrigation Station Map Satellite 1P J i S dH dl 3h 45 (I t ll d 6 4 04)Pump: Jacuzzi SandHandler 3hp 45 gpm (Installed 6 4 04)Well Diameter = 6", Depth of water 9 ft.

Station Area /Trial1 Bentgrass putting green 2 north heads2 Bentgrass putting green 2 south heads3 Not in use4 Seashore Paspalum Establishment Trial (north of zone 7)5 Perennial Rye NTEP (north of zone 7)6 Seashore Paspalum Fertility Trial (wraps around zone 4)7 Geohumus Incorporation trial (South of Zones 4 & 5 from Irrig shed to east beds)8 2010 Tenacity Poa Control Trial (East of irrigation shed)9 Maple garden lawn spray heads10 Maple garden drip system11 Geohumus Trial (Hedge garden lawn)12 Spreading Perennial Ryegrass Evaluationp g y g13 Tee and surrounds (Divot Recovery Trial)14 East fence line (north of hedge lawn only)15 Poa Fertility Trial16 North Poa Putting Green (disease trial area)17 Middle Poa Putting Green (primo rate trial/mowing rolling trial)18 South Poa Putting Green (mowing rolling trial)19 Poa putting green surrounds east (west of road)20 North of poa fertility trial (south of berry rows)20 North of poa fertility trial (south of berry rows)21 Poa putting green surrounds west (far west border)22 Poa putting green surrounds south23 Push Up Poa Green (Eugene Green)24 Swale east (variety plots)25 Swale middle (variety plots)26 Swale west (variety plots)27 Swale hillside bottom (Tall Fescue)28 Swale hillside top (Tall Fescue)28 Swale hillside top (Tall Fescue)

Station Area /Trial1 Colonial Bentrgrass Evaluation2 Cool Season Water Use Trial3 General Turf4 Hort 314 Establishment Trial5 Hort 314 Establishment Trial

bl h l6 Hort 314 Establishment Trial

2010 Anthracnose Fungicide2010 Anthracnose FungicideEvaluation Trial

Brian McDonaldBrian McDonald

2010 Anthracnose Trial - Highlights

Tourney (0.37 oz/1,000) after 2 apps – severe phyto

2010 Anthracnose Trial – DMI Effects

Reserve at 3 2 3 5 & 4 5 oz per 1 000Reserve at 3.2, 3.5, & 4.5 oz per 1,000

T i i 1 0 1 000Triticonazole + Chlorothalanil + StressGard Trinity at 1.0 oz per 1,000Triticonazole + Chlorothalanil + StressGard

Torque at 0.6 oz per 1,000 Headway G at 2.0 lbs per 1,000

2010 Anthracnose Trial – Highlights

Foursome – 5 DATFoursome – 13 DAT

Quali-Pro “Foursome” Pigment1 DAT

Reserve with “StressGard”1 DAT1 DAT 1 DAT

2010 Anthracnose Fungicide Rotations with and without Strobi & T-Methyl Resistance

With Resistance• Begin in mid June

and without Strobi & T Methyl Resistance

No Resistance• Begin in mid JuneBegin in mid June

• 3 week Spray Interval• Mix ALL products with Chlorothalanil

– Banner/Triton/Trinity/Torque

Begin in mid June• 3 week Spray Interval• Mix ALL products with chlorothalanil

– Banner/Triton/Trinity/TorqueBanner/Triton/Trinity/Torque– Medallion– Signature– Endorse (Now “Affirm”)

Banner/Triton/Trinity/Torque– Medallion– Heritage/Compass/Insignia– Signature– Endorse (Now Affirm ) – Signature– Thiophanate Methyl

Note: Avoid repeated DMI apps in hot weather

W t U E l ti fWater Use Evaluation of10 Newly Established Cool-Seasony

Turfgrass Species as Influencedb M i H i ht & Nit F tilitby Mowing Height & Nitrogen Fertility

Tod Blankenship CGCSTod Blankenship, CGCS

Materials and Methods

Treatments:i l d l• Nine commonly used cool

season turfgrass speciesconsisting of two or three wayblend seeded 23 April 2009 and17 April 201017 April 2010

• Annual Bluegrass plots soddedat same time

• Plots maintained at 16 mm and51 mm height of cut mowed51 mm height of cut, mowedthree times and 1 time per week

• NF applied during initialestablishment of the plots

• high NF plots received 49 kg/ha• high NF plots received 49 kg/hatwo days prior to trial initiation(15 July 2009/2010)

• low NF plots did not receive anyNF for duration of trialNF for duration of trial

Materials and MethodsMaterials and Methods

Site:i il• native soil

• Chehalis and Malabon silty clayloam

• pH of 6.3Experimental Design:

• strip split plot designimplemented

• factorial design replicated threefactorial design replicated threetimes with 10 turfgrass speciesas horizontal treatments, twomowing heights (16 mm and 51mm) as vertical treatments, and

l l ( dtwo nitrogen levels (49 and 195kg/ha/yr) as subplot treatments

Materials and Methods

LowMow High Mow

3.6 m

0.9 m

0 9 m 0 45 m

Materials and Methods

Data Collection:

Pl l d d il d d High Nitrogeng

High Nitrogen

3.6 m

0.9 m 0.45 m• Plots evaluated daily and assessed onoverall functionality (playability) andrated daily on a numerical scale (0 2;0=no water stress, 1=some waterstress, 2=water stressed) by a CertifiedGolf Course Superintendent (CGCS)

LowMowLow Nitrogen

High MowLowNitrogen

Golf Course Superintendent (CGCS)with over 15 years experienceprofessionally managing various coolseason turfgrass species throughoutthe United States.

• The rating scale took intoThe rating scale took intoconsideration; % cover (density), %dormant turf, % stressed turf, % weedencroachment, and stand need forirrigation inputs.

• Once individual subplot rated a 2,Once individual subplot rated a 2,irrigation applied at rate equivalent to7.6 mm through a hose end nozzleattached to batch and flow meter

Materials and MethodsMaterials and Methods

Data Collection:Data Collection:• Water use correlated with rating

scale based on volumetric watercontentcontent

• VWC readings taken daily at 3.8cm with TDR soil moisture probe

• Visual turf ratings wereVisual turf ratings weresupplemented via UnderhillEarly Stress Detection Glasses

• Digital images taken weeklyevaluated using SigmaScan andvisual rating scale (1 9)

ResultsResults2 categories of cool season grass water use:

LowWater Users• Tall Fescue, Perennial Ryegrass, Creeping Bentgrass, Kentucky Bluegrass, Velvet Bentgrass,

High Water Users• Annual Bluegrass, Strong CRF, Slender CRF, Chewings Fescue, Colonial Bentgrass

Results

Slight interaction between mowing height(No differences observed between fertility treatments)

Difference in Mowing Height Treatments

15.0

20.0

25.0

30.0

35.0

onInpu

ts(L) *SE = 1.58

Variety X Mowing P Value = .075

AnnualBluegrass

StrongCRF

SlenderCRF

ChewingsFescue

ColonialBentgrass

VelvetBentgrass

KentuckyBluegrass

CreepingBentgrass

PerennialRyegrass

TallFescue

L

0.0

5.0

10.0

5 0

Irrigatio

Low Mow 30.2 29.2 27.3 21.5 20.5 15.6 15.8 15.6 14.3 13.9

High Mow 28.1 21.5 19.6 19.0 15.6 17.9 14.9 13.4 13.0 12.1

ResultsTotal irrigation inputs related to percentage of the total

reference ET acquired from on site weather station for thed ti f th t i lduration of the trial

0.89 a0 90

1.00

Percentage of Reference ET Applied*SE = 0.0352

0.77 b0.72 b

0.62 c0.55 cd

0.51 de0.47 ef 0 45 ef0 50

0.60

0.70

0.80

0.90

ferenceET

0.45 ef 0.42 f 0.40 f

0 10

0.20

0.30

0.40

0.50

Percen

tRef

0.00

0.10

Poa annua StrongCreepingFescue

SlenderCreepingFescue

ChewingsFescue

ColonialBentgrass

VelvetBentgrass

Kentuckybluegrass

Creepingbentgrass

PerennialRyegrass

Tall Fescue

ResultsAverage soil volumetric water content readings the morning of

irrigation inputsirrigation inputs

Average Soil Volumetric Water Content at Irrigation

30.00

35.00

40.00

45.00

Water

Conten

t

*SE = 1.2716

5 00

10.00

15.00

20.00

25.00

entage

Volum

etric

AnnualBluegrass

StrongCreeping Red

Fescue

SlenderCreeping Red

Fescue

ColonialBentgrass

ChewingsFescue

CreepingBentgrass

Tall FescueVelvet

BentgrassPerennialRyegrass

KentuckyBluegrass

VWC 39.68 36.59 33.84 29.91 29.56 29.31 28.93 28.87 28.77 27.00

0.00

5.00

Perce

Evaluating Geohumus with anEvaluating Geohumus with an emphasis on Drought Resistance in

Turfgrass Systems

Ty Patton, M.S. Student

Rooting Box TrialRooting Box Trial

•1% volume ofGeohumus

•incorporated atdifferent depths inpsoil profile toevaluate impact onproot density

Divot TrialDivot Trial•22 Treatments involvingdifferent combinations ofG h A i D k tGeohumus, Axis, DakotaPeat, and sand

l•evaluated 396 divotsusing light box images andSigma Scan imagingsoftware

•Replicated trial 3 times inshade and full sun

Adaptability and Performance of Seeded Seashore Paspalum for Temperate Climates

Stan Baker Ph.D. Candidate

Seeded Seashore Paspalum B k dBackground

• warm-season perennial turfgrass• typically found between 30 - 35° N-S latitudes• near sea level in tropical and subtropical to warm

t ttemperature areas

Seeded Seashore PaspalumR h R ti lResearch Rationale

• increasing need to provide quality residential, athletic g p q y ,field, resort, and golf course playing surfaces on salt-affected soils

il ith i t lit d tit• soils with varying water quality and quantity • all while reducing fertilizer and pesticide requirements• turfgrass species showing significant promise in meeting• turfgrass species showing significant promise in meeting

these requirements is seeded Seashore Paspalum • little known about these cultivars in temperate climates

Seeded Seashore PaspalumBarriers to Commercialization

• turfgrass applications in temperate climates are unknownturfgrass applications in temperate climates are unknown

• management practices for planting, grow-in, and maintenance of seeded Seashore Paspalum notmaintenance of seeded Seashore Paspalum not documented

• potential mixture component of cool-season grassespotential mixture component of cool season grasses unknown

The beginning:Planted July 1 2010Planted July 1, 2010

Coverage August 15, 2010

Stay tuned!

Poa annua GreenSpeed Management

Rob Golembiewski, Ph.D.

Materials & MethodsMaterials & MethodsTrial Trial IniatedIniated July 15, 2010July 15, 2010

Terminated Trial September 10, 2010 (58 days)Terminated Trial September 10, 2010 (58 days)

3 Reps3 Reps –– Plots 3.3 ft. x 15 ft.Plots 3.3 ft. x 15 ft.3 Reps 3 Reps Plots 3.3 ft. x 15 ft.Plots 3.3 ft. x 15 ft.

Area Received 0.15 lb. N/1000 ftArea Received 0.15 lb. N/1000 ft22/10/10--14 days 14 days

Primo Plots Received 0.1 oz./1000 ftPrimo Plots Received 0.1 oz./1000 ft22/week/week

TopdressedTopdressed bibi--weeklyweekly

Plots Mowed 8 am Plots Mowed 8 am –– Mowing Height 0.150”Mowing Height 0.150”ots o ed 8 aots o ed 8 a o g e g t 0 50o g e g t 0 50

StimpmeterStimpmeter Ratings Taken 9 am & 2 pmRatings Taken 9 am & 2 pm

2010 Results

T t t AM PM DifferenceTreatment AM PM Difference(AM �– PM)

UntreatedControl ----- ----- 6Control

Primo +6 +7 5

2010 Results

Treatment AM PM DifferenceTreatment AM PM (AM �– PM)

No Roller ----- ----- 5

Gas Roller +8 +7 6Gas Roller 8 7 6

Electric Electric Roller +9 +8 6

2010 Results

Treatment AM PM Difference(AM �– PM) (AM PM)

Mowed Daily ----- ----- 5

Mowed Daily �–Rolled MWF +9 +8 6

Mowed & Rolled Daily +15 +13 7

Rolled Daily �–Mowed MWFSa +10 +9 6

Alternated Mowed & Rolled ----- +1 5

2010 Summaryy

• Mowing & Rolling Daily resulted in i ifi t i i b ll ll di tsignificant increases in ball roll distance

• No significant differences were observed between gas & electric rollers

• Primo had minor impact on ball roll difference

Thank you for your support!y y pp

Contact Informationf m

T d Bl k shi CGCSTod Blankenship, CGCSOregon State University4017 ALS BuildingCorvallis, OR 97331Corvallis, OR 97331

Ph n : (651) 503 6101Phone: (651) 503-6101Email: todcgcs@gmail.com