Penn State Extension

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Photo by David Almquist on Bugguide.org, used with permission.
Camphor Shoot Borer (Cnestus mutilatus) - Articles Articles
Camphor shoot borers are an introduced species of ambrosia beetle that attack small-diameter branches and trunks of stressed, weakened, and dying trees. They also accidentally bore holes into plastic gasoline containers, hoses, and tanks. More
Managing Small Woodlots
Managing Small Woodlots - Articles Articles

Managing Small Woodlots

David R. Jackson, Lynn Kime, Jayson K. Harper, Ph.D., James Finley, Ph.D.

Woodlot owners can improve your woods for the future or cause damage from which it might not recover for generations. More
Insects on Real Christmas Trees
Insects on Real Christmas Trees - Articles Articles

Insects on Real Christmas Trees

Michael J. Skvarla

Most real Christmas trees are free of insects and other arthropods. However, it is possible that some trees may harbor one or more species. More
Asian longhorned ticks are can be found on deer and other wildlife, as well as livestock and companion animals.
Asian Longhorned Tick, Haemaphysalis longicornis - Articles Articles

Asian Longhorned Tick, Haemaphysalis longicornis

Erika Machtinger, Michael J. Skvarla

The Asian Longhorned tick is a recent invasive tick to Pennsylvania. This tick can be found on wildlife and on livestock. It is important to be aware of the presence of this tick and to implement prevention and control measures when necessary. 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
Magnolia Leaf-Footed Bug
Magnolia Leaf-Footed Bug - Articles Articles

Magnolia Leaf-Footed Bug

Michael J. Skvarla

Magnolia leaf-footed bugs are brown bugs occasionally found on magnolia. They do not pose a risk to human health and do not cause damage to or reduce the vigor of infested trees, but may be nuisance pests. 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
Yellowmargined leaf beetle (YMLB) adult. Photo: Michael Skvarla, Penn State
Yellowmargined Leaf Beetle Serious Pest in Pennsylvania - Articles Articles

Yellowmargined Leaf Beetle Serious Pest in Pennsylvania

Michael J. Skvarla, Shelby Fleischer, Ph.D.

Yellowmargined leaf beetle (YMLB) (Microtheca ochroloma) is a serious pest of cruciferous crops. More
Pennsylvania Forest Stewardship Program
Pennsylvania Forest Stewardship Program - Guides and Publications Guides and Publications

Pennsylvania Forest Stewardship Program

James Finley, Ph.D.

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The Pennsylvania's Forest Stewardship Program is a voluntary program to help forest landowners learn to improve and maintain the ecological health of their land. Private landowners who own between 5 and 1,000 acres of forestland can join the program. More
Michael Skvarla, director of the Insect Identification Lab in Penn State's College of Agricultural Sciences, holds a walking stick. Photo by Amy Duke
Penn State Department of Entomology Offers Insect Identification Services - News News
Director of the Insect Identification Lab in Penn State's College of Agricultural Sciences knows his bugs More
Photo: T. Baugher, Penn State
A Brief Guide to Hand Lenses - Articles Articles

A Brief Guide to Hand Lenses

Michael J. Skvarla

Arthropods, including plant pests and biocontrol agents, are often difficult to identify with the naked eye. More
Forests are more than just trees; they are an integrated community of plants, animals, soils, and water.
Forest Stewardship: Principles for Landowners - Articles Articles
This article explains the benefits of forest stewardships and provides information to forest landowners for developing a forest stewardship plan. More
Woods in Your Backyard
Woods in Your Backyard - Workshops Workshops
By enhancing or creating natural areas and woodland, landowners can enjoy recreation, aesthetics, wildlife, and water quality. This workshop teaches stewardship of small parcels of land. More
Woodland Stewardship: Management Practices for Landowners
Woodland Stewardship: Management Practices for Landowners - Online Courses Online Courses
$119.00
Learn about forest ecosystems, management, and stewardship practices, as well as wildlife, water, tree identification and measurement, and legacy planning. More
Teach for Forests: Forest Education for Teachers and Youth Leaders
Teach for Forests: Forest Education for Teachers and Youth Leaders - Online Courses Online Courses
$119.00
Learn about trees, wildlife, water, and ecology. Learn to teach children and teens with activities and through curriculum recommendations. Earn Act 48 credits. More
Understanding Forests: Education for the General Public
Understanding Forests: Education for the General Public - Online Courses Online Courses
$79.00
Learn practical knowledge and skills about forest trees, wildlife, and water, as well as forest ecology, management, and silviculture. More
Brown marmorated stink bug
Brown Marmorated Stink Bug - Articles Articles

Brown Marmorated Stink Bug

Michael J. Skvarla

The brown marmorated stink bug (BMSB) was first collected in September of 1998 in Allentown, but probably arrived several years earlier. More
Tree seedling in forest
Sustainable Forestry - Articles Articles

Sustainable Forestry

Michael Jacobson, Ph.D., Sanford S. Smith, Ph.D., James Finley, Ph.D.

Sustainable forestry is about managing forests to provide wood, clean water, wildlife habitat and beautiful landscapes. More
Fern-dominated forest understories interfere with forest regeneration and provide poor habitat for wildlife. Photo Credit: David Jackson
Controlling Understory Fern Competition for Regeneration Success - Articles Articles
Dense understories of hay-scented, New York, and bracken fern can interfere with the regeneration of hardwood forests, threatening their sustainability. More
Forest Stewardship: Teaching Youth About Forest Stewardship
Forest Stewardship: Teaching Youth About Forest Stewardship - Articles Articles

Forest Stewardship: Teaching Youth About Forest Stewardship

Sanford S. Smith, Ph.D., James Finley, Ph.D.

This article is for parents, educators, and other adults who are interested in teaching youth about land management and forest stewardship. More
Forest Stewardship: Earning Income from Your Forestland
Forest Stewardship: Earning Income from Your Forestland - Articles Articles
As a forest landowner, you may wonder whether you could improve you income by putting the land to work. This article covers the basics of business planning, and offers case studies and examples. More
Forest Stewardship: Sources of Information and Guidance for Forest Stewards
Forest Stewardship: Sources of Information and Guidance for Forest Stewards - Articles Articles

Forest Stewardship: Sources of Information and Guidance for Forest Stewards

Allyson Brownlee Muth, Ed.D., James Finley, Ph.D.

This article describes services offered to private woodland owners by public agencies and private organizations to help forest landowners in PA achieve their management objectives More
Forest Stewardship: Timber Harvesting: An Essential Management Tool
Forest Stewardship: Timber Harvesting: An Essential Management Tool - Articles Articles
This article discusses how you can use harvesting as a management tool to improve your woodlands while also safeguarding against poor harvesting practices. More
Regenerating Hardwood Forests: Managing Competing Plants, Deer, and Light
Regenerating Hardwood Forests: Managing Competing Plants, Deer, and Light - Articles Articles
Competing plants, deer, and insufficient light on the forest floor can interfere with regeneration. This article addresses how to manage these issues. More
Forest Stewardship: Our Link to the Past - Our Legacy for the Future
Forest Stewardship: Our Link to the Past - Our Legacy for the Future - Articles Articles

Forest Stewardship: Our Link to the Past - Our Legacy for the Future

Allyson Brownlee Muth, Ed.D., James Finley, Ph.D.

This article offers an overview of forest stewardship, a way for forest landowners to learn to be better stewards of their land and avoid costly or resource-damaging mistakes. More
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