Shade Tree Sessions March 14, 2018

Morning General Sessions

7:45 am

Callus, Woundwood, Decay and Plant Health Care

Assessment of callus and woundwood is critical to evaluating tree resistance to pests and pathogens. Wound response is also directly tied to the ability of trees to contain decay fungi both before and after infection. Learn how to identify the various wound responses of trees and what they mean for pest resistance.

Dr. Luley has been providing urban forestry consulting service throughout his 35+ year career in urban forestry and arboriculture. His degrees are from SUNY Environmental Science and Forestry (BS in Botany; MS in Forest Pathology) and Iowa State University (PhD in Plant Pathology, working on tree diseases). He is currently president and pathologist at Urban Forest Diagnostics LLC in Naples, NY.

8:40 am

Drift Away: Diagnosing Drift and Carry-over Injury in Trees

More genetically modified crops (GMCs) are being used in agriculture than ever before, with stacked glyphosate- and dicamba-resistant soybeans and Xtend™ seed being some of the most recent players. Additionally, the lines between urban and rural have been blurring for years and, consequently, herbicide drift and carry-over injury on "nontarget" crops, including nursery and landscape, have escalated. Carry-over in the plant and in the soil, as well as how to diagnose the variable nature of drift, will be presented with real-life cases. You won't "get lost in the rock and roll"—but you will see why some herbicide applications, unfortunately, just "drift away."

Dr. Hannah Mathers, Mathers Environmental Science Services, Inc., is currently an independent horticultural researcher/consultant at Ohio State University, Columbus, OH, and before that Oregon State University. Hannah is the recipient of several awards including meritorious service, distinguished contributions, and promotion of diversity. She is a recognized national speaker and writer and more recently has been involved in herbicide drift and carry-over cases as an expert witness. Hannah is also noted for her diagnostic expertise and woody plant cold stress physiology.

9:35 am

Whose Tree Is It Anyway? Boundary Trees and Property Line Disputes

Overhanging branches, fallen limbs, and other cross-boundary issues can cause disputes for your customers and challenges for your crews. This session will discuss who owns and controls boundary trees, what actions neighbors can (and can’t) take, and what you need to know to protect yourself when working on boundary trees.

Bryan is an attorney and principal at the law firm of Zlimen & McGuiness, PLLC. He advises clients on issues encountered by green industry professionals every day, including dispute resolution, contracts, and collections.

Afternoon Concurrent Sessions

12:15 pm

Nick Grebe, Crew Lead, Branch and Bough Tree Service and Landscape Care

Doug Courneya, Owner/Arborist, Courneya Horticulture

Michelle Grabowski, Extension Educator, Plant Pathology, University of Minnesota Extension; Jeff Hahn, University of Minnesota

Gary Wyatt, Forestry Extension Educator, University of Minnesota Extension

Christopher Luley, President/Pathologist, Urban Forest Diagnostics LLC

Jennifer Burington, Plant Health Specialist, Minnesota Department of Agriculture

Andrew Emma, Standards and Inspections/Tree Keepers Program Manager, Philadelphia Parks and Recreation

R. Chris Williamson, University of Wisconsin-Madison

Josh Lynn, Horticulturalist, Bailey Nurseries

John Lloyd, Research Scientist, Precision Organics, LLC

John Goodfellow, Principal Consultant, Biocompliance Consulting, Inc.

Shirley Mah Kooyman, Native Plant Specialist, Natural Shore Technologies, Inc.

Michael Neal, Vice-President of Customer Development, Mowbray's Tree Service

Eric North, Assistant Professor of Practice, University of Nebraska, Lincoln

Linda Chalker-Scott, Associate Professor and Extension Specialist, Washington State University

Craig Pinkalla, Minneapolis Park and Recreation Board − Forestry

1:15 pm

Michael Dockry, Research Forester and Social Scientist, US Forest Service

James Jacobs, Plant Pathologist, USDA Forest Service

Hannah Mathers, Independent Researcher/Consultant, Mathers Environmental Science Services, Inc.

Emily Ball, City Forester, City of Lakeville; Rachel Coyle, Urban Forester, City of Saint Paul, Forestry; Jeff Haberman, City Forester, City of Rochester, Minnesota

Christopher Luley, President/Pathologist, Urban Forest Diagnostics LLC

Kimberly Thielen Cremers, Pest Mitigation and Regulatory Response Supervisor, The Minnesota Department of Agriculture, Plant Protection Division

Ashley Reichard, Urban and Community Forestry Volunteer Programs Coordinator, University of Minnesota Twin Cities

Jim Nayes, Owner, Living Sculpture Trees

Hugo Matus-Tadeo, Certified Tree Worker, Minneapolis Park and Recreation Board−Forestry

Karen Ballen, Adjunct Faculty, Department of Soil, Water, and Climate, University of Minnesota

Andy Hovland, Owner and Business Manager, Branch and Bough Tree Service and Landscape Care; Heidi Van Schooten, Owner and Business Manager, Branch and Bough Tree Service and Landscape Care

R.J. Laverne, Manager of Education and Training, Davey Tree Expert Company

Elizabeth Maloney, Partnership for Tick-borne Diseases Education

2:45 pm

Marilyn Arnlund, Minnesota Tree Care Adviser, Hennepin County Master Gardener

Paul Moss, MPCA Climate Adaptation Coordinator, Minnesota Pollution Control Agency; Shawna Mullen, Active Transportation Coordinator, Zeitgeist Center for Arts and Community

Dwayne Stenlund, CPESC, Minnesota Department of Transportation

Jay Maier, Green Collar Consultants

Brett Arenz, Director of Plant Disease Clinic, Department of Plant Pathology, University of Minnesota

Meri Mullins, Technical Engineer, EnviroTech Services

Thaddeus McCamant, Specialty Crops Instructor, Central Lakes College

Eric North, Assistant Professor of Practice, University of Nebraska−Lincoln

Geoff Kempter, Technical Services Manager, Asplundh

John A. Koepke, Professor of Landscape Architecture, University of Minnesota

Brian Schwingle, Forest Health Specialist, Minnesota Department of Natural Resources

Nic Jelinski, Assistant Professor, Department of Soil, Water, and Climate, University of Minnesota

Jake Miesbauer, Arboriculture Scientist, The Morton Arboretum

Thomas Harrington, Iowa State University, Department of Plant Pathology and Microbiology

Chad Giblin, Research Fellow, University of Minnesota, Department of Forest Resources