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Lightning Damage to Landscape Palms

Learning to distinguish the symptoms of lightning strikes is a valuable tool for arborists, landscapers, pest control companies, and gardeners. The symptoms may be confused with other causes such as lethal yellowing disease (Candidatus palmae...

Resource
1/19/21
Using botanic gardens and arboreta to help identify urban trees for the future

Diversification of urban forests is essential to enhance their resilience to future biotic
threats as well as those posed by a changing climate. Arboreta and botanic gardens
host a wide range of plant material that can be evaluated to...

Resource
11/9/20
The state of the world’s urban ecosystems: What can we learn from trees, fungi, and bees?

Positive interactions between people and nature inspire behaviours that are in harmony
with biodiversity conservation and also afford physical and mental health benefits.
Since most people live in towns and cities, urban greenspaces are...

Resource
10/9/20
The pollination services of forests

This document was developed as a contribution to “mainstreaming biodiversity
into agriculture, forestry and fisheries”, as recommended at the 24th Session of the
Committee on Forestry in 2018. It also contributes to FAO’s Strategic...

Resource
6/18/20
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...

Resource
3/30/20
Bartlett: Mulch Application Guidelines

Mulches provide many benefits for trees and shrubs. Properly applied mulch will moderate soil temperatures, reduce soil moisture loss, reduce soil compaction, provide nutrients, improve soil structure, foster beneficial microbial communities, and keep...

Resource
10/15/19
Vulnerability to climate change of islands worldwide and its impact on the tree of life

Island systems are among the most vulnerable to climate change, which is predicted to induce shifts in temperature, rainfall and/or sea levels. Our aim was: (i) to map the relative vulnerability of islands to each of these threats from climate change...

Resource
10/14/19
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...

Resource
10/14/19
Lean on Me: Recommendations for Heritage Tree Support at the Morris Arboretum

The history of the Morris Arboretum can be told through its eldest trees. Every scar and abnormality present on these immense specimens inspire awe, enrich visitor experience, and provide a glimpse into the past of the gardens. They also act as living...

Resource
9/16/19
Finding Urban Trees for a Changing World

Trees planted in cities face many survival challenges, but when they thrive they make our cities healthier, less hot, and more beautiful. Historically, professionals have planted the same familiar trees over and over in cities since they are a safe bet...

Resource
9/12/19

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