Modern Cool Season Sport TurfManagement
Copenhagen 13-14th July 2021

The corona pandemic brings some uncertainty and we take precautions for changes in the program,but here is a short presentation of the lecturers and their topics as confirmed August 2020.

Lecturer

Presentation title

Stacy A. Bonos is a
Professor of Turfgrass
Breeding in the Departmentof Plant Biology at Rutgers
University. Her research
focuses on the developmentof improved, pest resistant,and stress tolerant,
turfgrasses including native grasses. She has
dedicated much of her research to improving
bentgrasses for golf courses. She has developedor co-developed over 240 cool season turfgrass
cultivars and has been recognized for her
research through several awards including Golf
Magazine’s ’40 under 40’, Early Career
Excellence in Plant Breeding – Plant Breeding
Coordinating Committee; Young Crop Scientist
Award – Crop Science Society of America (CSSA)
and Fellow of CSSA.

Low Input Turfgrass Species for Sports Turf:
What are their quality attributes andchallenges?
There is a need to identify turfgrass species andmixtures for golf course fairways and sports turf
applications that can be managed sustainablyby reducing fertility, mowing, irrigation andpesticides. Which species provide the best
quality under low input? What other factors
need to be considered for choosing theoptimum turfgrass species for input sports turf?
Can some mixtures between species provide
better quality than monostands of singlespecies?

Bryan G. Hopkins, Ph.D.
is a Certified Professional
Soil Scientist (CPSS) and a
Professor at Brigham
Young University where
he teaches and does
research inenvironmental soil andwater sciences related toturfgrass and other crops. He does turfgrassconsulting with professional, collegiate, andother sports/golf organizations internationally.

Zero waste of water and nutrient. How
efficient can we become?
*Can we simultaneously grow superior grasssurfaces while minimizing impacts to theenvironment and conserving natural resources?
*How close can we get to “zero negativeimpact”?
*What can grass managers do to be responsible
and, thus, reduce the likelihood of being
mandated to not grow grass?
*Why should I care about the environment andnatural resources?

Ross Braun, Ph.D. is a leadresearch scholar at Purdue
University. Dr. Braun has
worked at three golfcourses in the United Statesand has a researchbackground in turfgrassscience focusing on finefescues, zoysiagrass, buffalograss and otherlow-input turfgrass systems, greenhouse gas
emissions, and drought and traffic stress.
Dr. Dale Bremer, Ph.D.,
Professor of Turfgrass
Science, Kansas StateUniversity
Dale Bremer conducts
research in water
conservation, drought stressmanagement, greenhousegas emissions from turfgrass,and in the use of new technologies such as
drones, remote sensing, and soil moisturesensors to improve turfgrass management
practices. He advises and teaches graduate andundergraduate students in turfgrass science.
Didier Combes works in INRAE
in France, which drives
research on genetic
improvement of seeded
grasslands adapted to climatechange. To this end, anecophysiology approach isapplied, consisting inanalyzing and modeling the functioning of thegrassland in response to environmental factors(e.g. light, temperature and water).

Monitoring traffic during drought stressHow important is it to monitor traffic during
drought stress? What are the impacts traffic
during stress on turf canopies as well as soil androots in the upper soil profile? In addition, arethere differences among turf species andmowing heights in response to traffic during
drought stress?

Etienne Abelard is anapprentice engineer. In
other words, he is both a
5th year student in theengineering cycle byapprenticeship at the ESA(Higher School ofAgriculture) in ANGERS and at the same timeassistant-breeder, for 3 years now, within thecompany DLF Recherche in France, alongside
Christophe Galbrun.

Light therapy. Update on lamps and theireffects on different grass species.
The use of luminotherapy in major stadia
around the world is becoming more and morecommon and is now considered a necessity inthe production of high quality turf playing
surfaces.
We can then ask ourselves:
What types of lamps to use? HPS or LED?
Which species are most suitable under HPS
lamps? Under LED lamps?

Strategies to keep turf alive when severe
drought and water scarcity
With a focus on water conservation anddrought stress, these questions will beconsidered:
How can turfgrass managers balance water
conservation with maintenance and survival of
turfgrass during severe droughts andrestrictions on turfgrass irrigation?
Can new technologies such as drones, remotesensing, and soil moisture sensors be practicallyincorporated to enhance effectiveness,efficiency, and environmental stewardship ofturfgrass management?
Mapping soccer stadiums for grass growthconditions. Improving a turfgrass management
is based on a better understand of the plant
functioning in response of environmental
factors. We will see through some examples
how a monitoring system can help in following
the proper functioning of management tools
and then help in an optimal use of these tools inorder to keep a high turfgrass quality.

Atle Revheim Hansen isGolf Course Manager atBærheim Golfpark inNorway. He has 38years’ experience as
greenkeeper, Golf
Course Manager,
Designer andConstructor. Atle ispassionate about innovation in theNorwegian golf industry.

Robotic mowers. Experiences from 5 years fullscale testing.

Erich Steiner is a
registered LandscapeArchitect BSLA and Golf
Course Architect EIGCA
and also holds a master's
degree in sports turf fromCranfield University.
Director of Steiner &Partner Landschaftsarchitektur since 2004, hehas over 30 years of experience in the fields oflandscape architecture and turf grassconsulting.

Drone surveillance for early intervention may
save water and chemicals
The vitality of the turf grasses, visual aspect andconsistent playability are the main priorities of
the turf grass maintenance specialist. The
maintenance to achieve this quality however, isvery cost and labour intensive and there isincreasing demand for more precision andautomation. But what is the added value of
aerial photography with multispectral andthermal cameras?

Ingeborg Menzler-Hokkanenis a University Researcher at
the Department ofEnvironmental and BiologicalSciences, University ofEastern Finland. She holds a
PhD in economics, and has
worked over the past 20years on EU-research
projects on integrated pest management,
biological control, and pollinator management.
Jan Rosenbusch,M.Eng.
Trained Gardener, Qualified
Sports Field Inspector,
B.Eng. LandscapeDevelopment and M.Eng.
Landscaping Management.
Currently Doctoral
Candidate in Horticultural
Sciences at University ofHanover and positions as Development
Engineer at EUROGREEN – A BayWa Company
and as Research Associate at University ofApplied Sciences Osnabrück. Research activities
relate to sustainable turfgrass management

Atle was the first Golf Course Manager toimplement robot mower technology on afull-scale golf course. But even more: He isvirtually maintaining a lot of the golf course
through his smartphone. Atle will talk about
the process and share some experience.

Golf courses as refuge for endangered insect
species: too small, too scattered, or a properand useful tool for conservation?
* What types of multifunctionality can golfcourses provide to support ecosystem services?
* Are there usable plant species that are
visually attractive, support the conservation ofendangered species, and provide otherecosystem services at golf courses?
* Which endangered insect species could betargeted? Could golf course environments reallymake a difference for conservation?
How to identify, record and evaluate theecosystem services at my golf course?
The ecosystem services that occur on golfcourses offer the opportunity for a positive
external image of golf courses and the entire
sport. In this unit you will learn what ecosystemservices are and how they can be identified,recorded and evaluated on the basis of anecosystem service concept model for golfcourses.

Paige Boyle is aPresidential Doctoral
Research Fellow at Utah
State University. She
earned a B.S. in
Environmental, Soil, andWater Sciences and M.S.
in horticulture from theUniversity of Arkansas.
Her research backgroundincludes stream restoration design, in-vessel
compost processing, earthworm management
on golf course turf, and clover lawns.

Asbjørn Nyholt, Turfgrassagronomist, CEO, Nyholt
ApS
Master in soil science andplant nutrition, Universityof Copenhagen 1989
Product manager, DLF,
Seed & Science, 19962008
Established Nyholt ApS in 2008. The company
employs two agronomists specialized inturfgrass maintenance and growthrequirements.
Paul Koch, PhD, is anassociate professor in theDepartment of Plant
Pathology at the Universityof Wisconsin – Madison.
Paul’s research focuses ondeveloping precisiondisease management
strategies for snow moldand dollar spot in turfgrass
and investigating the fate and impact ofturfgrass pesticides in the environment.
Wendell Hutchens is a PhD
student at Virginia TechUniversity. His research is
predominantly on thewarm-season grass diseasespring dead spot(Ophiosphaerella spp.), but
he also studies nonfungicidal management
techniques for cool-season
grass diseases such as dollar spot (Clarireedia

Earthworm castings
In turfgrass systems, earthworm casts can cause
issues with turf growth and management.
Earthworm control is difficult because
earthworms are still not well understood, andno pesticides are labeled for earthworm
management. Turf managers usually rely on
cultural practices to mitigate casting, withlimited or varied efficacy. This presentation will
walk you through earthworm biology, ecology,
and various management options.

Practical Danish experiences maintaining
football pitches
without pesticides since 1998
Since the agreement was signed between theDanish Government and the National
Association of Municipalities in 1998, nopesticides have been used for maintaining
football pitches in the Municipality of Odense.
The municipality has 200 football pitches (240ha) and 110.000 registered users.
Is it possible to maintain football pitches
without pesticides?
Will the weeds take over?
What does the users think about playing
quality?
Alternative, non-chemical solutions for dollar
spot control
Dollar spot is one of the most common
turfgrass diseases worldwide. Few fungicides
are available for use on turfgrass in northern
Europe and Scandinavia, and in thispresentation we will briefly talk about thelatest research on non-fungicide alternatives
for dollar spot control such as iron sulfate,poacic acid, and increased nitrogen fertility.

Technology to fight dollar spot: a new way of
disease management
Dollar spot (Clarireedia spp.) is difficult tomanage without fungicides. Furthermore,resistance to most of the traditional dollar spot
fungicides has now been documented. This has
led researchers and turfgrass professionals toexplore new ways of managing and preventing
the disease. Who would have thought drones,
thermal cameras, GPS-guided sprayers, andspp.) and brown patch (Rhizoctonia spp. andCeratobasidium cereale).
Devon Caroll is a
doctoral student in Plant,
Soil, and Environmental
Sciences focused inturfgrass weed science at
the University ofTennessee. She holds a
Master’s degree inAgronomy specialized inturfgrass and Bachelor’s degree in Turfgrass
Science both from the Pennsylvania StateUniversity.

Jason Henderson is anAssociate Professor ofTurfgrass and Soil
Sciences in theDepartment of PlantScience and LandscapeArchitecture at theUniversity of Connecticut.
Dr. Henderson earned hisPh.D. degree from
Michigan State University in Crop and Soil
Science specializing in the physical properties ofturfgrass soils.

wetting agents would be used for dollar spot
management?
Controlling Clover and Dandelions with Iron
What is chelated iron and how does it affectweeds and turfgrass? Chelated iron may be
used as an organic herbicide targeted toward
broadleaved weeds such as dandelion andclover. Unlike many other organic or natural
products, use of iron herbicides results inminimal injury to turfgrass. Iron is a promising
weed control tool in areas with restrictedpesticide use.

Let the Robot Pick the Weed: Management
Strategies when Pesticides are Not an Option
Laws have removed conventional tools for
managing pest populations in many areas ofturfgrass management. Attendees willappreciate an unconventional perspective while
realizing the themes of pesticide-freemanagement; fundamentals are imperative,intensity of management will increase, andwindows of opportunity will decrease. A newdevice for turfgrass management will be
introduced for selective, mechanical weed
control while mowing.