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Pine health issues in the southeastern U.S.

Several biotic and abiotic stressors, including insects, pathogens, and weather, can impact pine growth in the Southeast. Dr. David Coyle (Clemson University) will provide a general overview of identification, impact, and management strategies for pine...

Resource
4/16/21
Loblolly Pine Health in the Southeastern U.S.

Southern pine species such as loblolly, longleaf, shortleaf, and slash cover much of the 
southeastern U.S., and are a critical component of the region’s economy.  Loblolly pine is the 
most widely planted species in the southeastern...

Resource
3/15/21
Climate change and biological invasion as additional threats to an imperiled palm

Climate change and biological invasion are major threats to biodiversity, but their combined effects haverarely been quantified. The introduction of congeneric non-native species, in particular, can be especially problematic for native species due to...

Resource
3/11/21
Cornell Botanic Gardens: Invasive Plant Policy

A policy document developed to balance the public garden mission of holding diverse horticultural collections with the conservation mission of preserving natural areas and the broader environment.

Resource
3/2/21
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
Invasive Woody Plants and Their Effects on Arthropods in the United States: Challenges and Opportunities

Invasive plant introductions are increasing globally, and trends in human activity suggest these increases will continue. Although we know much about interactions between invasive herbaceous plants and arthropod communities, there is a dearth of...

Resource
1/14/21
Lessons Learned: A New Kind of Rose Garden

Available to Members only.

Since the Ontario Cosmetic Pesticide Ban of 2009, Royal Botanical Gardens (RBG) had struggled to maintain its Rose Garden to world class standards. Ontario's 2017 sesquicentennial celebration afforded the perfect...

Resource
10/12/20
The Science and Practice of Managing Forests in Cities

The past few months have highlighted the importance of parks and nature in cities. Urban natural areas are critical as refugia, protecting biodiversity and mitigating the impacts of climate change all while contributing to the health and wellbeing of...

Resource
6/30/20
Buying better biosecurity: Plant-buying behaviour and the implications for an accreditation scheme in the horticultural sector

The horticultural trade relies on healthy plants to flourish. However, its very nature
means that it is also a key pathway for the introduction and spread of plant pests and diseases.
These pests and diseases threaten horticultural...

Resource
1/8/20
New Tools for Identifying and Prioritizing Range Shifting Invasive Plants

Join Jenica Allen and Bethany Bradley to learn about new tools for identifying and prioritizing range-shifting invasive plants coming soon to a landscape near you. Whether you’re a property owner, land manager, landscape professional, or policymaker,...

Resource
11/25/19
Resistance of European ash (Fraxinus excelsior) saplings to larval feeding by the emerald ash borer (Agrilus planipennis)

European ash is a significant tree commercially, ecologically, and culturally. It is currently
threatened by two invasive species, the fungus that causes ash dieback and
the emerald ash borer (EAB) beetle. We show that saplings of...

Resource
11/15/19
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
Using DNA barcoding to improve invasive pest identification at U.S. ports-of-entry

Interception of potential invasive species at ports-of-entry is essential for effective biosecurity
and biosurveillance programs. However, taxonomic assessment of the immature stages
of most arthropods is challenging; characters for...

Resource
9/27/19
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
Bartlett Tree Experts: Saving Storm Damaged Trees and Shrubs

Ice or snow loads can cause branch breakage or failure of entire trees and shrubs. Branches or entire trees that fall in storms can impact homes, vehicles, power lines and block roads. After a storm, the first priorities are safety and restoration of...

Resource
9/12/19
Impact of Significant Weather Events on Plant Death in Managed Landscapes

Intensively managed landscapes, like those found in many public gardens, attempt to mitigate the impact of significant weather events through irrigation, improving soil characteristics, and mulching. At the same time many gardens purposefully push the...

Resource
7/9/19
How a Public Garden is Redefining Outreach in the Urban Forest

In August 2008, a dangerous pest, the nonnative, invasive Asian longhorned beetle, was discovered in Worcester County, Massachusetts. To contain the infestation, Worcester County was put under quarantine and whole neighborhoods were clear-cut in a...

Resource
6/28/19
Safeguarding global plant health: the rise of sentinels
  • Many exotic plant pests and pathogens are unknown prior to their establishment, making prevention and management difficult.
  • Sentinel plantings to detect pests and pathogens prior to introduction provide information about the likelihood
  • ...
Resource
5/20/19
A decision framework for hemlock woolly adelgid management: Review of the most suitable strategies and tactics for eastern Canada

The invasive hemlock woolly adelgid (HWA) has decimated hemlock stands across much of the eastern United States, and presents a significant threat to all eastern hemlock in Canada across Ontario, Quebec, New Brunswick, Nova Scotia, and Prince Edward...

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5/13/19
Prioritizing the conservation needs of United States tree species: Evaluating vulnerability to forest insect and disease threats

Insect and disease infestations pose major threats to several North American forest tree species.
Scientists and managers from throughout the United States Forest Service developed a conservation priority-setting framework for forest tree...

Resource
4/10/19

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