The conference schedule is subject to change without notice.

Thursday - February 10, 2022

Thursday Morning

07:00 – 08:00Registration, Sponsor, and Partner Events
08:00 – 08:15Opening Remarks and Announcements
08:15 – 09:15“Understanding why newly planted trees survive…and don’t survive”

Dr. Gary Johnson, Professor Emeritus, University of Minnesota

Based on the recently published research that Dan Wattenhofer and I conducted, the major factors affecting first-year survival of planted trees will be examined, including tree species, who planted the trees (e.g. professionals, vs municipal employees, vs volunteers), nursery stock type (bare-root, containerized, balled and burlapped), and water management. Each factor can be managed to increase tree establishment beyond the initial transplant shock phase.
09:15 - 09:45Break with 20-minute PNM demo
09:45 – 10:45“Electrical Hazards: The Arborist’s Sword of Damocles”

Dr. John Ball, Professor of Forestry, South Dakota State University

Our Sword of Damocles, a reminder of danger from above, is not a sword held by horsehair, but an overhead power line (OHPL). They are almost always present in our everyday work and present a significant hazard. This session will cover 1) the most common incidents associated with OHPLs, 2) the requirements to work in the vicinity of OHPLs and 3) why arborists may not work within 10 feet of OHPLs.
10:45 - 11:45“Integrated Pest Management for Urban Landscapes”

Dr. Shaku Nair, Associate Professor in Extension - Community Integrated Pest Management, University of Arizona, Maricopa Agricultural Center

Landscape pests include insects, pathogens, weeds and wildlife that affect trees, as well as structural pests that can be found in or around buildings and are supported by human activity, such as rodents. Integrated pest management or IPM is a holistic approach to pest management that seeks to manage pests effectively with the least risk to people, property and the environment. IPM does not aim to eliminate all pests, but maintain a balanced system where pest levels can be tolerated with minimal intervention. This talk will cover some practices essential to a landscape IPM program, and give examples of IPM strategies for selected landscape pests.
11:45 – 01:00Lunch

Thursday Afternoon

01:00 - 02:00“Tougher Trees for a Tougher Climate in New Mexico”

Ross Shrigley, Executive Director, Plant Select®

With the encroachment of insects and diseases, it seems our tree palette is shrinking, but Plant Select® is working to bring climate-ready trees to the market. Plant Select’s goal is to create smart plant choices for a new American Landscape inspired by the Rocky Mountain Region. Plants chosen for the program exhibit these eight attributes: flourish with less water, thrive in a broad range of conditions, reliably habitat-friendly, proven to be tough and resilient in challenging climates, one of a kind/unique, resist disease & insects, offer long-lasting beauty, and are non-invasive.
02:00 - 03:00“The Overlooked Hazards of Arboriculture: Pesticides, Poisonous Plants and Drugs”

Dr. John Ball, Professor of Forestry, South Dakota State University

When we think of arborist injuries, we think of being struck by falling trees, falling from trees, and contact with conductors. But there are also medical conditions that arise from exposure to pesticides, plants, and drugs. This session will cover the requirements for safe pesticide use (PPE, mixing, and application), identification and treatments for exposure to poisonous plants and debris, and an increasing hazard – drug addiction.
03:00 – 03:30Networking Break
03:30 - 04:30“Street Tree Failures During Wind Loading Events: Impacts of Sidewalk Repairs, Tree Size, and Boulevard Width”

Dr. Gary Johnson, Professor Emeritus, Urban and Community Forestry, University of Minnesota, Department of Forest Resources

Based on research published in 2019, we thoroughly examined the factors that affected the failures (windthrow, breaking at ground line) of street trees during wind loading events in the upper Midwest. Specific attention will be given to the effects of sidewalk repair, species, tree size, and width of boulevards. Knowledge of these factors should affect future street tree designs and tree preservation after sidewalk repairs or replacements.
04:30 - 04:45Closing Remarks and Survey

Friday - February 11, 2022

Friday Morning

07:00 – 08:00Registration
08:00 – 08:05Opening Remarks and Announcements
08:05 – 09:05“Good Health Grows on Trees”

Dr. Kathleen Wolf, University of Washington, College of the Environment

An overview of the latest research about nearby nature experiences and human health with a focus on urban forestry, versus broader urban greening (e.g. parks, streetscapes, etc.) to establish important talking points when engaging with clients, city residents or officials that make key decisions that affect urban forestry in communities. Themes include the cost and quality of life burden of disease in the U.S. and N.M.; how the urban forest serves as a social determinant of health to improve public health; and the economics of trees and human benefits.
09:05 - 09:35Break with 20-minute Trees of Corrales demo

09:35 – 10:35“Branching Patterns & Shape: How Wood Forms”

Dr. Matt Ritter, Professor, California Polytechnic State University

Flowering trees and conifers form wood and support branches in different ways. Leaves are not borne on all trees in the same way. Genetically determined characteristics in trees can help us identify, plant, prune and maintain them properly. If we know a tree’s biology, we can predict what to expect as it matures.
10:35 – 11:35“A Deeper Dive into Nature & Health: Mental Health & Environmental Equity”

Dr. Kathleen Wolf, University of Washington, College of the Environment

Themes for this session include green space & physical activity and disparities in parks/trees distribution and environmental equity.
11:35 – 01:00Lunch

Friday Afternoon

01:00 - 02:30“Preparing the Urban Forest Insect and Disease Threat Response Guide for Arizona and New Mexico”

Ann Audrey, Environmental Consultant, University of Arizona

The Urban Forest Insect and Disease Threat Response Guide for Arizona and New Mexico (Guide) is being prepared under the supervision of the Arizona Department of Forestry and Fire Management in coordination with New Mexico State Forestry. This presentation describes the procedures being used to identify, research, prioritize and prepare response guidance on current and emerging threats to urban forests in Arizona and New Mexico including environmental conditions impacting urban trees.

Detailed lists of tree species/genera have been compiled for urban areas of New Mexico and Arizona, along with compilations of threats posed by insects, diseases, plant parasites, other organisms, and environmental conditions. User-friendly tools have been developed to assist users to quickly identify the range of tree threats that may be impacting a tree based on tree condition and symptoms. In turn, users will be able to access efficiently designed two-page summaries of each major urban tree threat to see photos of threat organisms and tree impacts plus information on symptoms, geographical distribution, threat severity, affected tree species, disease processes, and the range of treatment strategies that are available including environmental control, biological control, chemical treatment and/or mechanical management.

Attendees will be given a survey during this presentation to provide their input on the compiled New Mexico urban tree list, the compiled threat list, and the design of user-friendly tools for identifying threats and selecting appropriate treatments. Information compiled from these surveys will be used to prioritize the New Mexico tree species and urban tree threats addressed in the Guide, the project database, and the project website.
02:30 – 03:00Networking Break
03:00 - 04:00“Water in Trees: Photosynthesis, Respiration, and Stress”

Dr. Matt Ritter, Professor, California Polytechnic State University

Water can move three-hundred feet up to the top of the tallest trees, yet the trees don’t burn a single molecule of energy doing so. In this session, we’ll learn how trees transport water, use it for photosynthesis and respiration, and how these mechanisms are affected by water shortages.
04:00 - 04:30Closing Remarks, Raffle, and Survey