Penn State Extension

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Private Pesticide Applicator Short Course
Private Pesticide Applicator Short Course - Workshops Workshops
This course will prepare individuals for the exam to become certified private pesticide applicators and be able to apply restricted-use pesticides on their farm or property. More
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
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
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
Greenhouse Growers Day
Greenhouse Growers Day - Workshops Workshops

Greenhouse Growers Day


East Earl, PA

Join Penn State Extension, Penn State Research, and the State Floriculture Advisory Board for another great meeting. 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
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
How To Remove Spotted Lanternfly Eggs
How To Remove Spotted Lanternfly Eggs - Videos Videos

How To Remove Spotted Lanternfly Eggs

Donald Seifrit


Learn first-hand how to scrape and destroy spotted lanternfly egg masses, which are visible between October and July. More
Pesticide Applicator
Pesticide Applicator Short Courses - Articles Articles
Pesticide applicator short courses prepare professionals in a classroom-style setting to take the certified pesticide applicator’s exam. More
Pesticide Applicator Certification Study Materials - Seed Treatment
Pesticide Applicator Certification Study Materials - Seed Treatment - Guides and Publications Guides and Publications
Prepare for the Category 08 certification exam for the use of a pesticide on seed. More
Spotted Lanternfly: Research Update
Spotted Lanternfly: Research Update - Videos Videos

Spotted Lanternfly: Research Update

Julie Urban


A lot of scientific research is being done to increase our understanding about how the spotted lanternfly behaves and what management methods might be effective. More
Photo: Holly Raguza, Pennsylvania Department of Agriculture
Spotted Lanternfly: Tips for Handling Yard Waste in Quarantined Areas - Articles Articles
To prevent the movement of this insect, avoid moving yard waste such as woody plant debris (fallen trees or branches and tree trimmings) outside the quarantine area. More
Navigating the PaPlants Website
Navigating the PaPlants Website - Articles Articles
Learn how to access information in the Pennsylvania Department of Agriculture's PaPlants website and how being a registered user can provide even more information. More
Adult spotted lanternflies. Photo Credit: E. Smyers
Spotted Lanternfly Management for Homeowners - Articles Articles

Spotted Lanternfly Management for Homeowners

Heather L Leach, Dave Biddinger, Ph.D., Grzegorz (Greg) Krawczyk, Ph.D.

A guide that reviews the identification, life cycle, current distribution, and techniques for managing spotted lanternfly on your property. More
Ticks and Tickborne Disease - Articles Articles

Ticks and Tickborne Disease

Erika Machtinger

Tick bite prevention tips to reduce your risk More
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