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Araneus saevus male
Fierce Orbweaver - Articles Articles

Fierce Orbweaver

Steve Jacobs

Araneus saevus is found from Canada into the northern United States. It can be seen in forested areas and suburbia with mature landscape plantings. More
Trachelas tranquillus female. Photo by Steven Jacobs, Penn State Extension
Broad-Faced Sac Spider - Articles Articles

Broad-Faced Sac Spider

Steve Jacobs

Trachelas tranquillus can be found on foliage; under leaf litter, stones, and boards; and on buildings under the windowsills and siding. More
Herbert A. 'Joe' Pase III, Texas A&M Forest Service,
Yellow Garden Spider - Articles Articles

Yellow Garden Spider

Steve Jacobs

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
Mohammed El Damir,
Cross Orbweaver Spider - Articles Articles

Cross Orbweaver Spider

Steve Jacobs

The cross orbweaver was probably introduced from Europe. This showy orbweaver is commonly encountered next to buildings with exterior lighting. More
Tegenaria domestica male. Photo by Steven Jacobs, Penn State Extension
Barn Funnel Weaver Spider - Articles Articles
This funnel weaver is found throughout most of the United States, most notably in sheds and barns, in the crevices of doors, and under rocks and boards. More
Dani Barchana,
Banded Garden Spider - Articles Articles

Banded Garden Spider

Steve Jacobs

Banded garden spiders inhabit similar locations as yellow garden spiders, but are not as common in Pennsylvania. More
Joseph Berger,
Hacklemesh Weaver Spiders - Articles Articles
Amaurobius and Callobius species of spiders are found in damp locations under bark, leaf litter, and stones, as well as in woodpiles and other protected areas. More
Herpyllus ecclesiasticus female
Parson Spider - Articles Articles

Parson Spider

Steve Jacobs

Stealthy ground spiders hunt at night and hide under leaves, boards, and stones during the day. The most commonly encountered of these is the parson spider. More
Vegetable crops at Heritage Farm
Growers' Series: Fertility Strategies for Vegetable Growing - Workshops Workshops
Learn strategies for different vegetable crops and techniques for producing your own natural, low-cost fertilizers More
Diversified vegetable production in low-till cropping system
Growers' Series: Experiments in Low-Till Farming - Workshops Workshops

Growers' Series: Experiments in Low-Till Farming


Philadelphia, PA

Reducing tillage on the sustainable farm More
Problem Weeds in Field Crops: Managing Annuals and Biennials
Problem Weeds in Field Crops: Managing Annuals and Biennials - Online Courses Online Courses
Learn management and herbicide use for weeds such as lambsquarters, Palmer amaranth, foxtails and crabgrass. Earn pesticide applicator recertification credits. More
Master Class: Reverse Engineering Your Crop Plan
Master Class: Reverse Engineering Your Crop Plan - Workshops Workshops

Master Class: Reverse Engineering Your Crop Plan


Philadelphia, PA

Learn to Plan for the Harvest You Want When You Want It More
A rainy day at DITO Inc's Segue Gardens in West Oak Lane
Growers' Series: Shifting Weather Patterns - Workshops Workshops

Growers' Series: Shifting Weather Patterns


Philadelphia, PA

Discussion on grower concerns, solutions, and work-arounds for weather-related issues facing gardeners and growers today. 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
Growers' Series: High Tunnel Soil Health and Maintenance
Growers' Series: High Tunnel Soil Health and Maintenance - Workshops Workshops
Learn How to Keep Your Soils Healthy and Your Structure Functioning Efficiently and Effectively More
Spotted Lanternfly: What to Look For
Spotted Lanternfly: What to Look For - Articles Articles
Spotted Lanternfly, Lycorma delicatula, is a new threat to Pennsylvania and the United States, and experts are still learning how to combat it. More
Overall picture of white oak impacted by cynipid wasp galls. Photo: Sandy Feather, Penn State
Cynipid Wasp Galls: Making A Mess of White Oaks - News News
The Extension office received a sample of damaged white oak leaves from the North Hills of Pittsburgh. Given the amount of rain we have had all year, anthracnose was a possible suspect. More
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
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
Vincent Cotrone, Penn State University
Recovering from Storm Damage: Assessing Trees on Your Property - Workshops Workshops
Following recent storms that have damaged numerous trees, it is important to learn how to evaluate tree condition, defects and risks associated with them. 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, such as the spotted lanternfly, the first step is to identify the pest. More
Pollinator Garden
Spring Blooms: Small Trees and Native Perennials - Workshops Workshops
Learn about perennials you can plant in your own garden, and which plants have the highest ecological value. 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
Photo credits below
Will the Quarantine Effort for Spotted Lanternfly Work? - News News
For the past few years, there have been numerous Penn State Extension articles on the emerging spotted lanternfly (SLF) issue. More
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