Greg reviews the key components to maintaining our stressed landscapes with tried and true Sustainable Landscape Management practices.

Speaker: Greg Paige, Director of Horticulture and Arboretum Curator, Bartlett Tree Research Laboratories and...

Tawny Simisky, UMass Extension Entomologist, will discuss the frequently seen insect pests of trees & shrubs in the landscape during the 2020 growing season. This presentation will provide tips and tricks for diagnosing insects in the field as well...

Available for Members only.

Bartlett Tree Experts Webinar Series: October

Come learn about the top five pests active right now and critters we are seeing from our many eyes in the field. Additionally, learn clues on potential uninvited...

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...

The Asian longhorned beetle (Anoplophora glabripennis, or ALB) is a threat to America's hardwood trees. With no current cure, early identification and eradication are critical to its control. Dr. David Coyle (Clemson University) and Mr. Joe Boggs (Ohio...

In this first webinar in a two-part series, planners will learn about inventory tools and whole farm conservation planning approaches to enhance pollinator and other wildlife habitat. Specifically, we will give an overview of key pollinator habitat...

Albert Mayfield, USDA Forest Service entomologist from the Southern Research Station, presents information on Hemlock Woolly Adelgid management using chemical and biological control.

The results of 14 years of monitoring ash mortality and forest ecosystems in Ohio and Pennsylvania show how EAB has impacted these landscapes. Rare “lingering” ash trees have been identified and studied to understand long-term survival prospects for...

Laurel wilt is caused by Raffaelea lauricola, a fungal pathogen transmitted by the ambrosia beetle Xyleborus glabratus. Dr. Albert 'Bud' Mayfield will be giving a general overview of the introduction, range and impact of and possible management...

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...

Crapemyrtle bark scale is a relatively new invasive sucking insect pest, first officially reported on crape myrtles just north of Dallas, TX in 2004. Since then, crapemyrtle bark scale has spread to13 states throughout the southeastern U.S. and has...

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...

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...

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...

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...

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...

This webinar was brought to you by the Natural Areas Association.

Presented by Sarah Wurzbacher, Forestry Extension Educator, Penn State University.

The spotted lanternfly (Lycorma delicatula) is an invasive planthopper native to China, India and Vietnam.  It was first discovered in Pennsylvania and has spread to other counties in the eastern United States.  This insect has the potential to greatly...

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...

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...