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
Max Williamson, USDA Forest Service, Bugwood.org
Local Extension Offices are Offering a Private Pesticide Applicator Short Course - News News
A two-day short course is being offered at local Penn State Extension offices across the state to prepare applicators for the private pesticide applicator exam. 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
Soil Sampling
Soil Sampling - Videos Videos

Soil Sampling

Rachel Milliron

5:02

In this video, learn how to take representative soil samples in agronomic fields. More
Corn earworm (CEW) and feeding on corn ear tip. Image credit: Rachel Milliron.
Identifying Corn Earworm - News News

Identifying Corn Earworm

09/05/2018

Finding corn ears with feeding on the ear tip? 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
Researcher Aims to Limit Technology-based Distractions Researcher Aims to Limit Technology-based Distractions - News
Serap Gorucu, researcher at PSU, recently discussed youth ag safety at the “Technology-based Distractions in Farming Youth” seminar December 6 at Marshfield Clinic Research Institute. 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 caption: Rye Cover, Rachel Milliron, PSU
Finishing Up with Manure Applications and Got Bare Fields? - News News
There may still time to get cover on the ground. 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
Image 1. Frost damage to a stand of Japanese knotweed taken 5/9/2017
Frost and Freeze, Should We Worry About Winter Cereals? - News News
Temperatures crept at or below freezing the past couple of mornings, and you may be wondering if it has caused injury in wheat and barley crops. 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
SAY Clearinghouse: Aligns with AFRN CS.03 and PST.02
Blind Spots and Peripheral Vision Demonstrations - Articles Articles
Aligns with the following AFNR Standard(s): CS.03 and PST.02: Low Alignment More
SAY Clearinghouse: Aligns with AFRN CS.03 and PST.02
Blind Spots and Skid Steers Demonstrations - Articles Articles
Aligns with the following AFNR Standard(s): CS.03 and PST.02. More