This document provides a summary of research and programs at Oregon State University's Turfgrass Management program. It discusses the restructuring of departments within the College of Agricultural Sciences, including the combining of the Horticulture and Crop & Soil Science Departments. Enrollment numbers and courses taught in the turfgrass management program are presented. Several turfgrass research trials conducted by faculty and students are summarized, focusing on anthracnose disease management, water use of cool-season grasses, evaluating the effects of geohumus, seashore paspalum adaptation, and poa annua green speed management.

1. Oregon State University
Turfgrass Management
Research and Program UpdateResearch and Program Update
Tod Blankenship, CGCS

2. 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, close
the door.
Question tests whether you tend to do simpley p
things in overly complicated way

3. How would you answer these questions?
Question 2:
How would you answer these questions?
Question 2:
How would you put an elephant into a
refrigerator?refrigerator?
Correct Answer:
Open refrigerator, take out giraffe, put in
elephant and close door.
Question tests your ability to think through the
repercussions of previous actionsp p

4. 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 the
refrigerator. You just put him in there.
Question tests your memory

5. 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 be
frequented 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 the
crocodiles are attending the animal conferencecrocodiles are attending the animal conference.
Question tests whether we learn from our mistakes

6. 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

7. 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

8. 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

9. 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

10. 2010 Irrigation Zones and Trials
Oregon State University (updated May, 2010)
Irrigation Station Map Satellite 1
P 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 /Trial
1 Bentgrass putting green 2 north heads
2 Bentgrass putting green 2 south heads
3 Not in use
4 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 heads
10 Maple garden drip system
11 Geohumus Trial (Hedge garden lawn)
12 Spreading Perennial Ryegrass Evaluationp g y g
13 Tee and surrounds (Divot Recovery Trial)
14 East fence line (north of hedge lawn only)
15 Poa Fertility Trial
16 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 south
23 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 /Trial
1 Colonial Bentrgrass Evaluation
2 Cool Season Water Use Trial
3 General Turf
4 Hort 314 Establishment Trial
5 Hort 314 Establishment Trial
bl h l6 Hort 314 Establishment Trial

11. 2010 Anthracnose Fungicide2010 Anthracnose Fungicide
Evaluation Trial
Brian McDonaldBrian McDonald

12. 2010 Anthracnose Trial - Highlights
Tourney (0.37 oz/1,000) after 2 apps – severe phyto

13. 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

14. 2010 Anthracnose Trial – Highlights
Foursome – 5 DAT
Foursome – 13 DAT
Quali-Pro “Foursome” Pigment
1 DAT
Reserve with “StressGard”
1 DAT1 DAT 1 DAT

15. 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

16. W t U E l ti fWater Use Evaluation of
10 Newly Established Cool-Seasony
Turfgrass Species as Influenced
b M i H i ht & Nit F tilitby Mowing Height & Nitrogen Fertility
Tod Blankenship CGCSTod Blankenship, CGCS

17. Materials and Methods
Treatments:
i l d l• Nine commonly used cool
season turfgrass species
consisting of two or three way
blend seeded 23 April 2009 and
17 April 201017 April 2010
• Annual Bluegrass plots sodded
at same time
• Plots maintained at 16 mm and
51 mm height of cut mowed51 mm height of cut, mowed
three times and 1 time per week
• NF applied during initial
establishment of the plots
• high NF plots received 49 kg/ha• high NF plots received 49 kg/ha
two days prior to trial initiation
(15 July 2009/2010)
• low NF plots did not receive any
NF for duration of trialNF for duration of trial

18. Materials and MethodsMaterials and Methods
Site:
i il• native soil
• Chehalis and Malabon silty clay
loam
• pH of 6.3
Experimental Design:
• strip split plot design
implemented
• factorial design replicated threefactorial design replicated three
times with 10 turfgrass species
as horizontal treatments, two
mowing heights (16 mm and 51
mm) as vertical treatments, and
l l ( dtwo nitrogen levels (49 and 195
kg/ha/yr) as subplot treatments

19. Materials and Methods
Low Mow 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 Nitrogen
g
High Nitrogen
3.6 m
0.9 m 0.45 m
• Plots evaluated daily and assessed on
overall functionality (playability) and
rated daily on a numerical scale (0 2;
0=no water stress, 1=some water
stress, 2=water stressed) by a Certified
Golf Course Superintendent (CGCS)
Low Mow
Low Nitrogen
High Mow
LowNitrogen
Golf Course Superintendent (CGCS)
with over 15 years experience
professionally managing various cool
season turfgrass species throughout
the United States.
• The rating scale took intoThe rating scale took into
consideration; % cover (density), %
dormant turf, % stressed turf, % weed
encroachment, and stand need for
irrigation inputs.
• Once individual subplot rated a 2,Once individual subplot rated a 2,
irrigation applied at rate equivalent to
7.6 mm through a hose end nozzle
attached to batch and flow meter

20. Materials and MethodsMaterials and Methods
Data Collection:Data Collection:
• Water use correlated with rating
scale based on volumetric water
contentcontent
• VWC readings taken daily at 3.8
cm with TDR soil moisture probe
• Visual turf ratings wereVisual turf ratings were
supplemented via Underhill
Early Stress Detection Glasses
• Digital images taken weekly
evaluated using SigmaScan and
visual rating scale (1 9)

21. ResultsResults
2 categories of cool season grass water use:
Low Water Users
• Tall Fescue, Perennial Ryegrass, Creeping Bentgrass, Kentucky Bluegrass, Velvet Bentgrass,
High Water Users
• Annual Bluegrass, Strong CRF, Slender CRF, Chewings Fescue, Colonial Bentgrass

22. 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
onInputs(L)
*SE = 1.58
Variety X Mowing P Value = .075
Annual
Bluegrass
Strong
CRF
Slender
CRF
Chewings
Fescue
Colonial
Bentgrass
Velvet
Bentgrass
Kentucky
Bluegrass
Creeping
Bentgrass
Perennial
Ryegrass
Tall
Fescue
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

23. Results
Total irrigation inputs related to percentage of the total
reference ET acquired from on site weather station for the
d ti f th t i lduration of the trial
0.89 a
0 90
1.00
Percentage of Reference ET Applied
*SE = 0.0352
0.77 b
0.72 b
0.62 c
0.55 cd
0.51 de
0.47 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
PercentRef
0.00
0.10
Poa annua Strong
Creeping
Fescue
Slender
Creeping
Fescue
Chewings
Fescue
Colonial
Bentgrass
Velvet
Bentgrass
Kentucky
bluegrass
Creeping
bentgrass
Perennial
Ryegrass
Tall Fescue

24. Results
Average 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
WaterContent
*SE = 1.2716
5 00
10.00
15.00
20.00
25.00
entageVolumetric
Annual
Bluegrass
Strong
Creeping Red
Fescue
Slender
Creeping Red
Fescue
Colonial
Bentgrass
Chewings
Fescue
Creeping
Bentgrass
Tall Fescue
Velvet
Bentgrass
Perennial
Ryegrass
Kentucky
Bluegrass
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

25. Evaluating Geohumus with anEvaluating Geohumus with an
emphasis on Drought Resistance in
Turfgrass Systems
Ty Patton, M.S. Student

26. Rooting Box TrialRooting Box Trial
•1% volume of
Geohumus
•incorporated at
different depths inp
soil profile to
evaluate impact onp
root density

27. Divot TrialDivot Trial
•22 Treatments involving
different combinations of
G h A i D k tGeohumus, Axis, Dakota
Peat, and sand
l•evaluated 396 divots
using light box images and
Sigma Scan imaging
software
•Replicated trial 3 times in
shade and full sun

28. Adaptability and Performance of Seeded
Seashore Paspalum for Temperate Climates
Stan Baker
Ph.D. Candidate

29. 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

30. Seeded Seashore Paspalum
R h R ti lResearch Rationale
• increasing need to provide quality residential, athleticg 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

31. Seeded Seashore Paspalum
Barriers 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

32. The beginning:
Planted July 1 2010Planted July 1, 2010
Coverage August 15, 2010
Stay tuned!

33. Poa annua Green
Speed Management
Rob Golembiewski, Ph.D.

34. Materials & MethodsMaterials & Methods
TrialTrial 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 Reps3 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 days14 days
Primo Plots Received 0.1 oz./1000 ftPrimo Plots Received 0.1 oz./1000 ft22/week/week
TopdressedTopdressed bibi--weeklyweekly
Plots Mowed 8 amPlots 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

36. 2010 Results
T t t AM PM
Difference
Treatment AM PM
Difference
(AM –– PM)
Untreated
Control
----- ----- 6
Control
Primo +6 +7 5

37. 2010 Results
Treatment AM PM
Difference
Treatment AM PM
(AM –– PM)
No Roller ----- ----- 5
Gas Roller +8 +7 6Gas Roller 8 7 6
ElectricElectric
Roller
+9 +8 6

38. 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

39. 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

41. Thank you for your support!y y pp

42. Contact Informationf m
T d Bl k shi CGCSTod Blankenship, CGCS
Oregon State University
4017 ALS Building
Corvallis, OR 97331Corvallis, OR 97331
Ph n : (651) 503 6101Phone: (651) 503-6101
Email: todcgcs@gmail.com