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Leslie J. Mehrhoff, University of Connecticut,
Marbled Orbweaver Spider - Articles Articles

Marbled Orbweaver Spider

Steve Jacobs

The genus Araneus has about 1,500 species worldwide, making it the largest of all the spider genera. More
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
Micrathena gracilis female
Spined Micrathena - Articles Articles

Spined Micrathena

Steve Jacobs

This small spider is commonly encountered in wooded locations, including landscaped residential and suburban locales. 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
Whitney Cranshaw, Colorado State University,
Grass Spiders - Articles Articles

Grass Spiders

Steve Jacobs

Grass spiders are common in Pennsylvania and can be recognized by their large, sheet-like webs with a funnel or tunnel located off to one side. 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
Edward L. Manigault, Clemson University Donated Collection,
Wolf Spiders - Articles Articles

Wolf Spiders

Steve Jacobs

Wolf spiders are large hunting spiders. Two notable species, Hogna carolinensis and H. aspersa, are occasionally encountered in Pennsylvania homes. 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
Joseph Berger,
Woodlouse Hunter Spider - Articles Articles

Woodlouse Hunter Spider

Steve Jacobs

The woodlouse hunter spider preys on pill bugs or sow bugs (order Isopoda) and derives its common name from the British common name for these crustaceans. More
Photo by Tricia Borneman, Blooming Glen Farm
Manteniendo Frescos los Productos Agrícolas Frescos - Articles Articles
Manejo postcosecha para venta en mercados de agricultores y venta directa de la huerta a instituciones. More
Commonly Encountered Pennsylvania Spiders
Commonly Encountered Pennsylvania Spiders - Articles Articles
This publication discusses the more common and important spider species in Pennsylvania, including two rarely encountered but medically important species. More
2018 Soybean Variety Trials
2018 Soybean Variety Trials - Articles Articles

2018 Soybean Variety Trials

Mark Antle, Gregory W. Roth, Ph.D.

Soybean tests are conducted annually to provide information regarding the performance of soybeans grown in Pennsylvania. More
Impacto de FSMA en el Compostaje de Sustratos para la Producción de Hongos
Impacto de FSMA en el Compostaje de Sustratos para la Producción de Hongos - Articles Articles
Bajo la Ley de Modernización de la Inocuidad de los Alimentos (FSMA, por sus siglas en inglés) los productores de hongos tienen que reconocer peligros potenciales a la inocuidad de los alimentos y establecer medidas de control. More
Mushroom GAPs Audit and FSMA Resources
Mushroom GAPs Audit and FSMA Resources - Articles Articles
This article lists the information and resources needed to meet Good Agricultural Practices (GAPs) and Food Safety Modernization Act (FSMA) standards specific for the mushroom industry. More
Control de Listeria Monocytogenes en el Medio Ambiente de Cultivo y Empaque de Hongos
Control de Listeria Monocytogenes en el Medio Ambiente de Cultivo y Empaque de Hongos - Articles Articles
En los últimos años ha aumentado el conocimiento de que Listeria monocytogenes puede ser un posible contaminante microbiano en alimentos listos para el consumo. More
¿Qué es un Desinfectante o Sanitizante?
¿Qué es un Desinfectante o Sanitizante? - Articles Articles

¿Qué es un Desinfectante o Sanitizante?

David Meigs Beyer, Ph.D.

Vamos a aclarar algunos términos ya que los productores de hongos comúnmente se refieren de manera indistinta a los desinfectantes y a los sanitizantes, lo cual es entendible. More
Winterizing Sprayer, Photo by Andrew Frankenfield
Late Fall is the Time to Winterize Your Sprayers - Articles Articles
Once the growing season is over and the weather is turning colder it’s time to winterize your pesticide sprayer before it gets too cold and causes damage to sprayer components. The following are tips to guide you. More
Figure 1. Cool-season perennials are the mainstay of pastured dairies in the Northeast. Credit: Sjoerd Duiker
No-Till Annuals to Beat the Summer Slump on a Dairy Farm - Articles Articles

No-Till Annuals to Beat the Summer Slump on a Dairy Farm

Sjoerd Willem Duiker, Ph.D., CCA, Dave Wilson, Jessica A. Williamson, Ph.D.

This case study demonstrates how a grazing dairy farmer in southeastern Pennsylvania beats the summer slump with cool- and warm-season annuals established with no-till practices. More
Posts between the oat and annual strip create a fence between strips that are grazed and strips with grain crops. Photo by Sjoerd Duiker
Integrating Grazing in No-Till Systems on a Grain Farm - Articles Articles

Integrating Grazing in No-Till Systems on a Grain Farm

Sjoerd Willem Duiker, Ph.D., CCA, Jessica A. Williamson, Ph.D.

The adoption of no-tillage systems in Pennsylvania creates opportunities to graze after harvest. This case study examines the integration of grazing and no-tillage on a grain farm. More
Photo: Tara Baugher, Penn State
Fruit Disorders: Prevention of Scarf Skin on Apple Fruit - Articles Articles

Fruit Disorders: Prevention of Scarf Skin on Apple Fruit

James Schupp, Ph.D., Melanie Schupp, Edwin Winzeler, Tara Baugher, Daniel Weber, Donald Seifrit

Scarf skin is a physiological disorder of apple fruit that causes a dull gray cloudy or waxy appearance on the surface of the peel (epidermis) where it is most readily observed on varieties with a red or dark red background. More
Leaf infected with Marssonina. Photo: K. Peter, Penn State
Apple Disease - Marssonina Blotch - Articles Articles

Apple Disease - Marssonina Blotch

Kari A. Peter, Ph.D.

Marssonina blotch, caused by Marssonina caronaria, is a foliar disease first identified in Pennsylvania in September 2017. More
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