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2012 General Grant Archive John Z. Duling Grant 

Tree response to pruning cuts on branches that lack collars

May 24, 2012February 22, 2018 Barb 932 Views

2012 | Edward Gilman, PhD, University of Florida

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2011 General Grant Archive Jack Kimmel International Grant 

Effect of Pruning Type on Crown Motion

May 24, 2011February 12, 2018 Barb 555 Views

2011 | Matt Follett, University of Quebec at Montreal

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2011 General Grant Archive Hyland R. Johns Grant 

Failure potential of limbs receiving reduction or heading cuts and of resulting sprouts, in directional, structural or restoration pruning

May 24, 2011October 19, 2018 Barb 666 Views

2011 | Dr. Edward Gilman, University of Florida 

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2009 Grant Archive John Z. Duling Grant 

Effects of Container Types and Root Pruning on Root Quality and Tree Stability

July 19, 2009February 22, 2018 Barb 520 Views

2009 | Dr. Edward F. Gilman, University of Florida

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2008 Grant Archive John Z. Duling Grant 

Crown Pruning Effects on Fine Root Development of Green Ash

July 19, 2008August 5, 2015 Barb 583 Views

2008 | P. Eric Wiseman, Virginia Tech

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2008 Grant Archive Hyland R. Johns Grant 

Effects of root pruning newly planted large trees on decay, root regeneration, and stability

July 19, 2008February 22, 2018 Barb 457 Views

2008 | Edward F. Gilman, University of Florida

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2007 Grant Archive Hyland R. Johns Grant 

Effects of structural pruning on red maple trunk movement in wind

July 19, 2007February 22, 2018 Barb 1114 Views

2007 | Ed Gilman and Forrest Masters, University of Florida and Jason Grabosky, Rutgers University

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2007 Grant Archive Hyland R. Johns Grant 

Effect of pruning on the stability of trees in windstorms

July 19, 2007February 12, 2018 Barb 494 Views

2007 | Ken James, Brunley College, Brian Kane, University of Massachusetts, and Nelda Matheney and James Clark, Hortscience

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2005 Grant Archive John Z. Duling Grant 

Effects of Reduction Pruning on Growth, Decay, and Morphology of Tree Branches

July 19, 2005February 22, 2018 Barb 399 Views

2005 | Dr. John E. Lloyd & Steven P. Nittolo, University of Idaho

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General Hyland R. Johns Grant Newsletter Archive Recent Updates 

Hyland R. Johns Grant Program: Application Period Open

February 1, 2021 Monika Otting 125 Views

Established in 1995 to honor one of the leaders in the arboriculture industry and a founder of the ISA Research

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General Grant Archive Recent Updates 

Dendrometry of Multi-Stemmed Urban Trees

January 8, 2020January 8, 2020 Barb 1255 Views

Principal Investigator: Yasha A. S. Magarik, Yale School of Forestry & Environmental Studies Co-Investigators: Lara A. Roman, Research Ecologist for

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2017 General Grant Archive John Z. Duling Grant 

Enhancing Tree Transplant Success Through the Manipulation of Root Hydraulic Conductance

January 18, 2018January 18, 2018 Barb 675 Views

2017 | Nina Bassuk, PhD, Cornell University  

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2017 General Grant Archive Ohio Chapter ISA Education Grant 

Columbus State Arboriculture Education Expansion and Tree Care Academy Project

June 22, 2017November 28, 2018 Barb 679 Views

2017 | Columbus State Community College

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2017 Arboriculture Education Grant General Grant Archive 

Green Teens – Vocational Skills Job Training

June 22, 2017November 2, 2018 Barb 569 Views

2017 | Friends of the Urban Forest

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2016 General Grant Archive Jack Kimmel International Grant 

Effect of topping on microclimate condition and human comfort

January 5, 2017September 6, 2019 Barb 1076 Views

2016 | Francesco Ferrini, PhD, University of Florence, Italy and Co-Investigator Simone Orlandini, PhD, University of Florence, Italy

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2016 Arboriculture Education Grant General Grant Archive 

Junior Arborist Camp

July 18, 2016May 5, 2017 Barb 925 Views

2016 | McCrory Gardens – South Dakota State University

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2015 Arboriculture Education Grant Grant Archive 

From TREEs to STEM!

June 9, 2015April 13, 2016 Barb 520 Views

2015 | Toledo Botanical Garden

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2009 Grant Archive Research Fellowship 

Assessing the impact of decay on the structural integrity of trees

October 2, 2014February 12, 2018 Barb 883 Views

2009 | Dr. Brian Kane, University of Massachusetts, Amherst

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2013 Grant Archive Hyland R. Johns Grant 

Occupational Safety in Arboriculture

October 3, 2013February 8, 2017 Barb 680 Views

2013 | Zongliang Jiang, North Carolina A & T State University

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2011 General Grant Archive John Z. Duling Grant 

Effect of Container Size on Tree Establishment and Anchorage

May 24, 2012February 22, 2018 Barb 719 Views

2011 | Dr. Edward Gilman, University of Florida

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2010 Grant Archive John Z. Duling Grant 

Effect of tree form and branch orientation on load response

July 19, 2010February 22, 2018 Barb 541 Views

2010 | Ed Gilman, University of Florida

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2010 Grant Archive John Z. Duling Grant 

Effects of root system configuration and partial excavation on tree stability

July 19, 2010February 22, 2018 Barb 462 Views

2010 | Stephen Mitchell, University of British Columbia

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2008 Grant Archive John Z. Duling Grant 

Impact of Post-Establishment Applied Organic Mulch on Gas Exchange and Growth of Landscape Tree Species

July 19, 2008February 22, 2018 Barb 471 Views

2008 | Thayne Montague and Cynthia McKenney, Texas Tech University

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2005 Grant Archive John Z. Duling Grant 

Measuring Branch Architecture and Localized Wood Strength Properties to Develop Load Distribution Models

July 19, 2005February 22, 2018 Barb 554 Views

2005 | Jason Grabosky PhD & Gregory Dahle, Rutgers University

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2005 Grant Archive Hyland R. Johns Grant 

The effects of wind on tree sway and stability

July 19, 2005February 22, 2018 Barb 2105 Views

2005 | Dr. Mark Rudnicki

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2004 Grant Archive Hyland R. Johns Grant 

The Efficacy of Paclobutrazol Application as it Relates to Timing of Utility Right-of-Way Trimming

July 19, 2004February 22, 2018 Barb 797 Views

2004 | Shawn Bernick and Jim Zwack, Rainbow TreeCare Scientific Advancements

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