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Soil Management for Community Trees

Tree health and risk is heavily influenced by the health and quality of the soil surrounding it. Soil provides trees with essential nutrients, water, support, gas exchange, and more, but these services are limited when, for example, soil is compromised...

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4/8/20
A Call to Action for Ash Tree Conservation and Resistance Breeding

Ash tree species in North America are under mortal threat from the Emerald Ash Borer (EAB), now in 35 states and five Canadian provinces. There are ongoing efforts to conserve this native tree species by producing genetically diverse, resistant...

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3/30/20
Phytoremediation of Soils using Fast-Growing Trees in Vacant Lots and Landfills

Phytoremediation is a green technology that utilizes specialized trees to remediate contaminated soils across the rural to urban continuum. The trees stabilize pollutants in the soil, trap the contaminants in their biomass, and/or break down the...

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3/9/20
Phytoremediation of Soils using Fast-Growing Trees in Vacant Lots and Landfills

Phytoremediation is a green technology that utilizes specialized trees to remediate contaminated soils across the rural to urban continuum. The trees stabilize pollutants in the soil, trap the contaminants in their biomass, and/or break down the...

Resource
2/24/20
Tree Function in Stormwater Biofilters

This seminar includes an invited presentation by Jon Hathaway, Associate Professor at the University of Tennessee Knoxville titled, “Tree Function in Stormwater Biofilters: The Green in Green Infrastructure” and a panel discussion with Mike Perniel (...

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2/7/20
Landscaping for Resilience in a Changing Climate (Online Course)

The Earth's climate is changing. Impacts - including higher temperatures, rising sea levels, and longer periods of extreme weather - are...

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1/22/20
Investigating the Stormwater: Quantity and Quality Impacts of Urban Trees

A community with dense overhead tree canopy may benefit from reduced stormwater runoff volume through interception, transpiration, and infiltration but may also suffer from excess nutrients leached to nearby receiving waters from leaf litter. Bill...

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1/21/20
Soil Management for Urban Trees

The goal of the webinar is to provide an overview of soil management for urban trees. Specific emphasis will be given to soil assessment. The webinar will introduce soil quality, cover how soil quality can be assessed, and discuss how soil quality...

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1/21/20
Why Are Trees Important? Human Health and Economics

An ever-growing, international body of research points to many human health and wellness benefits that result from nearby nature experiences. But what about trees? Two recent reviews have explored, first, the studies that focus on the urban forest and...

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11/25/19
Emerald Ash Borer Update

Nate Siegert, Ph.D., USDA Forest Service, discusses the latest information pertaining to the Emerald Ash Borer (EAB) and its continued spread across the urban forests of the U.S. and Canada. Learning Objective: Attendees will better understand the...

Resource
11/11/19
Oak decline in the United States

Oak decline is a slow-acting disease complex that involves the interaction of biotic and abiotic factors such as climate, site quality and advancing tree age. Oak decline occurs more commonly among red oak species, but white oaks are susceptible as...

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10/14/19
Breeding and Restoring the Next Generation American Elm

Iconic tree species include those native trees that once dominated the typical American city landscape. The American elm and chestnut are the first two that come to mind, and now ash trees are similarly under significant threat of loss. The USDA Forest...

Resource
9/26/19
The Landscape Architect in the Nursery: Tagging Trees and Enforcing Specifications

Tree defects such as co-dominant leaders, girding roots and buried trunk flares, present at time of planting, cause failures and decline long after the warrantee period has expired.  Landscape architects may go to nurseries to tag trees; but often...

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9/12/19
Can We Vaccinate Trees to Protect Against Diseases?

Tree diseases are controlled primarily by spray applications of fungicides. Increased legislative restrictions regarding the use and application of fungicides stimulated by a greater environmental awareness means new techniques of disease control are...

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9/12/19

 

 
Quantifying Rainfall Interception in the Urban Canopy

Urban stormwater is a major contributor to surface water degradation in the United States, prompting cities to invest in green infrastructure - methods that naturally capture, store, and slowly release runoff, such as urban trees. While rainfall...

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8/19/19
Creating Equitable Career Pathways in Urban Forestry

Employers are desperate to fill a labor shortage on the front lines in urban forestry, yet struggle to source and retain a sustainable workforce. Few employers have successfully tapped into the supply of workers in communities with the lowest tree...

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8/5/19
Forest Resources of the United States, 2017: A Technical Document Supporting the Forest Service 2020 RPA Assessment.

The nation’s forest land area remains stable, but the composition and distribution of those forests is changing. The data supporting this assertion, along with other information on the status, condition, and trends in the nation’s forest resources, are...

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6/14/19

 

 
More Than Good Looks: How trees influence urban stormwater management in green infrastructure practices

While green stormwater infrastructure increases in popularity, we are still learning about the role of trees in these innovative practices. In this webinar, Andrew Tirpak will discuss recent research results from studies designed to characterize the...

Resource
5/28/19
Trees: A Risk Worth Taking (most of the time)

The evidence is mounting around the compounding benefits of the urban forest. We know trees in cities clean air and water, reduce energy demands, and improve the people's overall quality of life. Yet, tree failure may have serious negative consequences...

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2/19/19
The Salt Dilemma: Growing Better Urban Trees in Northern Climates

Can urban trees and city winter weather protocols peacefully co-exist? Join us for a discussion of the latest research findings related to successfully growing trees under these conditions. Dr. Andrew Millward will walk us through his investigation of...

Resource
2/11/19

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