Penn State Extension

18 Results

List Grid

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
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
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
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
On the Road: 4 Seasons Farm Market
On the Road: 4 Seasons Farm Market - Articles Articles

On the Road: 4 Seasons Farm Market

Elsa Sanchez, Ph.D., William Lamont, Jr., Ph.D., Thomas Maloney

We headed up to Susquehanna county to visit 4 Seasons Farm Market. 4 Seasons Farm Market is a 143 acre farm owned and operated by Tina and Gerald Carlin. More
All of plants shown here are in containers, plus many that cannot be seen in this image. It would be nearly impossible to keep them all watered properly without an irrigation system.
Building and Operating a Home Container Irrigation System - Articles Articles

Building and Operating a Home Container Irrigation System

Tom Butzler, Thomas Maloney, Darryl Dressler

Keeping many pots of flowers and vegetables watered consistently including when you are on vacation requires the installation of an irrigation system. More
Building and Operating a Home Garden Irrigation System
Building and Operating a Home Garden Irrigation System - Articles Articles

Building and Operating a Home Garden Irrigation System

Tom Butzler, Thomas Maloney, Darryl Dressler

Have you ever wondered how commercial fruit and vegetable growers can consistently get such huge quantities of great produce even in dry years? More
Container Grown Cucumbers, Zucchini and Squash
Container Grown Cucumbers, Zucchini and Squash - Articles Articles

Container Grown Cucumbers, Zucchini and Squash

Tom Butzler, Thomas Maloney, Darryl Dressler

This article, coupled with the advice in "Growing Great Container Vegetables #1: General Recommendations", will get you growing great cucumbers and squash. More
Container Grown Peppers
Container Grown Peppers - Articles Articles

Container Grown Peppers

Tom Butzler, Thomas Maloney, Darryl Dressler

This article, coupled with the advice in "Growing Great Container Vegetables #1: General Recommendations", should get you on the path to success. More
Container Grown Tomatoes
Container Grown Tomatoes - Articles Articles

Container Grown Tomatoes

Tom Butzler, Thomas Maloney, Darryl Dressler

Tomatoes are probably the #1 container vegetable that interests gardeners after herbs. More
General Recommendations for Growing Vegetables in Containers
General Recommendations for Growing Vegetables in Containers - Articles Articles

General Recommendations for Growing Vegetables in Containers

Tom Butzler, Thomas Maloney, Darryl Dressler

Basic steps include: making sure you have large enough containers, using great potting media, fertilizing, dealing with pests,and waterering. More
Container Grown Eggplants
Container Grown Eggplants - Articles Articles

Container Grown Eggplants

Tom Butzler, Thomas Maloney, Darryl Dressler

This article, coupled with the advice in "Growing Great Container Vegetables #1: General Recommendations", will get you growing great eggplants. More