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Stay Alert for Oak Wilt!
Stay Alert for Oak Wilt! - Articles Articles

Stay Alert for Oak Wilt!

Sandy Feather

Oak wilt was not known in New York before 2008, but foresters and arborists are managing it there now. More
Black-eyed Susan (Rudbeckia spp.)
Heat and Drought Tolerant Plants - Articles Articles
Sandy Feather, extension educator in Allegheny county, has prepared this list of trees, shrubs, annuals and perennials that don't just survive but will thrive in our long, hot summers. More
Acer rubrum Red Sunset® on a commercial site with suspected glyphosate damage. Photo: S. Feather, Penn State
Use Glyphosate With Care Near Trees! - Articles Articles
Glyphosate is the active ingredient in non-selective, systemic herbicides sold under a variety of trade names – Round Up, Accord, Glypro, and many others. More
Four-lined plant bug adult. Photo: S. Feather, Penn State
Four-lined Plant Bugs Are Active Now - Articles Articles
Four-lined plant bugs, Poecilocapsus lineatus, become active in May. More
Swiss stone pine, Pinus cembra, is a slow growing, stately conifer that is well-suited for smaller landscapes.
You Can Have Your Pine and Eat It, Too - Eventually - Articles Articles
Needled evergreens have been described as the “backbones of the landscape.” More
‘Red Jade’ in bloom. Photo: Michael Masiuk
There’s a Flowering Crabapple For That! - Articles Articles
Are you looking for a weeping tree? Or maybe you need an upright grower to 25 feet tall, or one that will top out at 8-10 feet? More
Photo: Michael Masiuk
Tough and Beautiful is Hard to Beat - Articles Articles
Parrotia persica, also known as Persian ironwood, is native to a relatively small region of northern Iran and Azerbaijan, near the southern edge of the Caspian Sea. More
Anise Hyssop (Agastache foeniculum): Perennial Photo, Sandy Feather
Landscaping to Attract and Conserve Beneficial Insects - Articles Articles
Beneficial insects are those that consume or parasitize insect pests. More
Photo: Sandy Feather
Japanese White Pine: Whimsical and Tough - Articles Articles
Picturesque may be the first word that comes to mind when describing the Japanese white pine, Pinus parviflora. More
Photo: Jim Occi, BugPics, blacklegged tick Ixodes scapularis
Ticked Off About Ticks - Articles Articles

Ticked Off About Ticks

Sandy Feather

Pennsylvania has led the nation for the last five years in confirmed cases of Lyme disease, according to the Centers for Disease Control. More
Why isn't My African Violet Flowering?
Why isn't My African Violet Flowering? - Articles Articles
Most modern African violets (Saintpaulia spp.) bloom throughout the year without much effort on the grower’s part. More
Detail shot of the bark of Pinus bungeana ’Silver Ghost’ at Dawes Arboretum, Newark, OH. Photo: Sandy Feather, Penn State Extension horticulture educator
Lacebark Pine: Its Bark is Better Than its Bite - Articles Articles
Lacebark pine, Pinus bungeana, is native to eastern and central China. More
Photo: Mike Masiuk
A Shade Tree With Benefits - Articles Articles
American yellowwood - Cladrastis kentukea, is a great shade tree that also is a lovely flowering tree. More
The Noblest Tree
The Noblest Tree - Articles Articles

The Noblest Tree

Sandy Feather

Michael Dirr describes the American beech (Fagus grandifolia) as “a sturdy, imposing tree often with a short trunk and wide-spreading crown, a picture of character.” More
Eastern redbud – Cercis canadensis – is small, graceful tree native to the eastern and central United States.
Eastern Redbud: A Superb Tree for Almost Any Landscape - Articles Articles
Eastern redbud (Cercis canadensis) is small, graceful tree native to the eastern and central United States. More
Cornus mas form in flower. Photo: Sandy Feather
When Corneliancherry Dogwood Blooms, Spring is Not Far Behind - Articles Articles
Cornus mas blooms on bare branches in March, with leaves following a bit later. More
Dawn redwood grove along a stream at Morris Arboretum.
I'm Not Dead, Just Dormant! - Articles Articles
My neighbor came up to me last month and told me he was sorry that my tree had died. I was puzzled, because I was not aware that any of my trees had died. More
Selection and Care of Cut Christmas Trees
Selection and Care of Cut Christmas Trees - Articles Articles
Despite the popularity and life-like appearance of modern artificial trees, nothing says Christmas like the fragrance a cut, live Christmas tree brings to your home. More