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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
Lameness in Dairy Herds - Part 2: Sorting Out Common Causes
Lameness in Dairy Herds - Part 2: Sorting Out Common Causes - Articles Articles
Lameness is a significant problem in many of today’s dairy herds, although it is often not recognized as such. 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
Hoof Trimming Report Hoof Trimming Report - Tools and Apps

Hoof Trimming Report

Ernest Hovingh, DVM, PhD

A graphical hoof trimming report for use on the dairy farm. Animal health record keeping. 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
Biosecurity Overview
Biosecurity Overview - Articles Articles

Biosecurity Overview

Ernest Hovingh, DVM, PhD

Farm Biosecurity: Management practices to minimize or prevent the transmission of disease within and between herds and flocks. More
Biosecurity Risk of Vets, Ag Service Personnel and Visitors
Biosecurity Risk of Vets, Ag Service Personnel and Visitors - Articles Articles
A checklist to determine the biosecurity risk of individuals to dairy herds. More
Biosecurity Fundamentals
Biosecurity Fundamentals - Articles Articles

Biosecurity Fundamentals

Ernest Hovingh, DVM, PhD, Robert J. Van Saun, DVM, MS, PhD, Bhushan M. Jayarao, MVSc, PhD, MPH

The basics of disease biosecurity, why a biosecurity plan should be implemented, and how to get a plan in motion. 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
cows
Cattle Euthanasia - Videos Videos

Cattle Euthanasia

Ernest Hovingh, DVM, PhD

6:04

This video will help the viewer determine the most ideal time for euthanasia, and instruction on how to choose and perform appropriate euthanasia techniques. More
Foot and Mouth Disease (FMD) - Risk posed by the importation of meat (beef) Foot and Mouth Disease (FMD) - Risk posed by the importation of meat (beef) - Articles
What is the risk of importing Food and Mouth Disease in imported beef? More
Mastitis, Udder Health, and Milk Quality
Mastitis, Udder Health, and Milk Quality - Articles Articles

Mastitis, Udder Health, and Milk Quality

Ernest Hovingh, DVM, PhD

Despite considerable research into bovine mastitis it remains an economically significant problem for the dairy industry, as well as an animal well-being concern. More
Biosecurity Risk Assessment: Farm Visitors and Exhibitions
Biosecurity Risk Assessment: Farm Visitors and Exhibitions - Articles Articles

Biosecurity Risk Assessment: Farm Visitors and Exhibitions

Ernest Hovingh, DVM, PhD, Bhushan M. Jayarao, MVSc, PhD, MPH, Robert J. Van Saun, DVM, MS, PhD

Biosecurity is a series of measures implemented to prevent or reduce the introduction and spread of infectious disease pathogens. The provided checklists help determine the biosecurity risk of individuals and animals. More
Note: everyone is wearing protective booties in an effort to minimize biosecurity risk
Biosecurity Risk Assessment: Livestock Exhibitions - Articles Articles

Biosecurity Risk Assessment: Livestock Exhibitions

Ernest Hovingh, DVM, PhD, David R. Wolfgang, VMD, MPH DABVP-Dairy

A checklist to determine the biosecurity risk at Livestock Exhibitions. More
Biosecurity Risk Assessment: Johne's Disease Biosecurity Risk Assessment: Johne's Disease - Articles

Biosecurity Risk Assessment: Johne's Disease

Ernest Hovingh, DVM, PhD, David R. Wolfgang, VMD, MPH DABVP-Dairy

A checklist to determine the risk of various factors for Johne's Disease in dairy herds. More
Risk Assessment for Salmonella in Dairy Herds.
Risk Assessment for Salmonella in Dairy Herds. - Articles Articles
A checklist to determine the biosecurity risk of introducing and spreading Salmonella in dairy herds. More
Feed Management and Delivery Feed Management and Delivery - Articles

Feed Management and Delivery

Robert J. Van Saun, DVM, MS, PhD, Ernest Hovingh, DVM, PhD

A checklist to determine the relative biosecurity risk of feed management and delivery in dairy herds. More
Contagious Mastitis Organisms in Dairy Herds
Contagious Mastitis Organisms in Dairy Herds - Articles Articles
A chart to assess the biosecurity risk of various factors for contagious organism transmission in dairy herds. More
Risk Assessment: Bovine Leukemia Virus (BLV)
Risk Assessment: Bovine Leukemia Virus (BLV) - Articles Articles
A chart to assess various risk factors for BLV transmission in dairy herds. More
Biosecurity - A Practical Approach
Biosecurity - A Practical Approach - Articles Articles

Biosecurity - A Practical Approach

Ernest Hovingh, DVM, PhD

Biosecurity is a set of practices employed to prevent the importation of infectious organisms into a herd or flock, and their transmission between animals. More
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