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The Chinese chestnut tree in full bloom can be very attractive. Photo: Tom Butzler, Penn State
Trees in the Landscape: The Stinkers - Articles Articles
We place trees and shrubs in the landscape for a variety of reasons; fall color, flowers, shade, winter interest, and fruiting characteristics. And let’s not forget the smell. More
Choosing a Qualified Pest Management or Lawn Care Company
Choosing a Qualified Pest Management or Lawn Care Company - Articles Articles
When you discover a pest problem in or around your home, the first step is to identify the pest. More
The original laboratory of S. W. Frost (entomologist) and R. C. Walton (plant pathologist) in the former Arendtsville Hotel, 1918-1922. Photo: Penn State Archives
Early History of the Arendtsville Fruit Laboratory - Articles Articles
In the letter below, Dr. Frost describes the challenges faced by the first scientists who started the Arendtsville Fruit Lab, which went on to become the Fruit Research and Extension Center. More
Photo 1. Blueberry blossom showing the characteristic flowers of this plant. Note that the flowers are closed, bell-shaped and pendant. Photo credit: Nicole Castle, contributed to Plant Village.
Who Pollinates Pennsylvania Blueberry Plants? - Articles Articles

Who Pollinates Pennsylvania Blueberry Plants?

Margarita López-Uribe, Ph.D., Shelby Fleischer, Ph.D., Kristal Watrous, Nolan Amon

Blueberries (genus Vaccinium) are a high-value crop in Pennsylvania and the United States, with an estimated value of at least $825 million to the US economy in 2014. More
Close-up of fringetree flowers which have some fragrance to them. Photo: Mike Masiuk, Penn State
Spring Floral Display: Chionanthus Virginicus, White Fringetree - Articles Articles
Although the common name, white fringetree, alludes to a tree, it is often treated as a large shrub in the landscape, reaching a range of anywhere from 12 to 20 feet. More
Mulching Landscape Trees
Mulching Landscape Trees - Articles Articles

Mulching Landscape Trees

David R. Jackson

Mulches are materials placed over the soil surface to enhance landscape beauty, improve soil conditions, protect plants from foot traffic and lawn equipment, and suppress weeds. More
Spotted lanternflies captured on a sticky band. Photo: Emelie Swackhamer, Penn State
Spotted Lanternfly Management: Placing Sticky Bands on Trees - Articles Articles
This article summarizes one method of capturing and killing spotted lanternfly (SLF): placing sticky bands on trees. More
Photo 1. Two type of bee hotels for stem nesters: (left) Box with cardboard straws and (right) wooden block with drilled holes. Photo credit: Margarita López-Uribe, Penn State
Spring Bees: Who Are They and Where Do They Live? - Articles Articles

Spring Bees: Who Are They and Where Do They Live?

Margarita López-Uribe, Ph.D.

While spring is the beginning of the beekeeping season, early blooming plants not only feed honey bees but also hundreds of native solitary bee species that emerge at around the same time. More
Photo: Bill Lamont, Penn State
Pumpkin Cultivar Trial Results - Articles Articles

Pumpkin Cultivar Trial Results

Elsa Sanchez, Ph.D., Timothy Elkner, Robert Pollock, Tom Butzler, William Lamont, Jr., Ph.D.

We evaluated twenty-one pumpkin cultivars in 2016 and 2017. More
Top dominant trees in an older orchard. Photo: Rob Crasswellar, Penn State
Home Gardening: Pruning to Renovate Old Fruit Trees - Articles Articles

Home Gardening: Pruning to Renovate Old Fruit Trees

Robert Crassweller, Ph.D., Rich Marini, Ph.D., Tara Baugher, Timothy Elkner

Use judicious pruning to renovate older fruit trees in your home landscape. More
Sclerodermus Latreille
Sclerodermus Latreille - Articles Articles

Sclerodermus Latreille

Michael J. Skvarla

Sclerodermus are small wasps that can become pestiferous and sting people when they attack wood-boring beetle larvae that have infested wooden structures and furniture. More
Jalysus wickhami. Photo © John Rosenfeld
Spined Stilt Bug - Articles Articles

Spined Stilt Bug

Michael J. Skvarla

Spined stilt bugs are an occasional pest of greenhouse tomatoes that can cause flower and fruit abortion and unsightly feeding damage in mature fruits. More
Photo: Holly Raguza, Pennsylvania Department of Agriculture
How You Can Comply with the Spotted Lanternfly Quarantine Regulations - Articles Articles
Some tips to help you avoid spreading Spotted Lanternfly (SLF) and be in compliance with the Pennsylvania Department of Agriculture (PDA) regulations. More
Spotted Lanternfly IPM Management Calendar
Spotted Lanternfly IPM Management Calendar - Articles Articles

Spotted Lanternfly IPM Management Calendar

Emelie Swackhamer, David R. Jackson, Art Gover

There are various management techniques to consider to destroy or control the Spotted Lanternfly. Learn the recommended methods to use during certain times of the year. More
Tracking the Health of Feral Honey Bees in Pennsylvania
Tracking the Health of Feral Honey Bees in Pennsylvania - Articles Articles
Dr. Margarita M. López-Uribe is leading a project to map feral bees and analyze their immune systems. If you are aware of an unmanaged honeybee colony, please let us know. More
Oakleaf hydrangea in full bloom. Notice the shape of the leaves. Photo: T. Butzler, Penn State
A Guide for Selecting Shrubs for Pennsylvania Landscapes - Articles Articles

A Guide for Selecting Shrubs for Pennsylvania Landscapes

Jim Sellmer, Ph.D., J. Robert Nuss

Information for over 100 shrubs, including: the selection and aesthetic qualities of shrubs, and shrubs for specific conditions. More
Landowners should inspect their forest road system at regular intervals to detect problems and schedule repairs. Photo: George Hurd, Penn Sate University
Maintain Forest Roads to Prevent Erosion and Protect Water - Articles Articles
The dirt and gravel roads that run through your forest play an important role in the management of your woodlands. 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
Black walnut fruit. Photo: K. Salisbury, Penn State
Working With the Black Walnut - Articles Articles

Working With the Black Walnut

Kathleen V. Salisbury

Black walnut is one of the last trees to leaf out in the spring and one of the first to lose its leaves in the fall. 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
Gardening From the Ground Up
Gardening From the Ground Up - Articles Articles
Soil health and best practices for urban gardens More
Mosquito Biology and Control
Mosquito Biology and Control - Articles Articles

Mosquito Biology and Control

Sharon I Gripp, Charlie Pitts, Ph.D., Winand Hock, Ph.D.

Read about the biology and habitat of mosquitoes, strategies for eliminating breeding sites and reducing mosquito bites, and the safe use of insect repellents. More
Herbert A. 'Joe' Pase III, Texas A&M Forest Service, Bugwood.org
Yellow Garden Spider - Articles Articles
Yellow garden spiders are seen in gardens, tall weeds, and sunny areas with bushes and other supporting structures on which they build their large orb webs. More
Edward L. Manigault, Clemson University Donated Collection, Bugwood.org
Wolf Spiders - Articles Articles
Wolf spiders are large hunting spiders. Two notable species, Hogna carolinensis and H. aspersa, are occasionally encountered in Pennsylvania homes. More
By Alex Wild [CC0], via Wikimedia Commons
Thief Ant - Articles Articles
Thief ants are a native species that is found throughout the eastern United States. These ants are so small that they frequently go unnoticed in the home. More
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