On-Demand Resources from Penn State Extension

View short videos and recorded webinars

Penn State Extension is a modern educational organization dedicated to delivering science-based information to people, businesses, and communities. Click on any of the resources below to view a recorded webinar or video provided by our expert educators.

Home Food Preservation

Acidity Level of Fruit in Jam and Jelly Preparation

Fruits have varying levels of acidity. The higher the acid level the better the gelling process, low acid fruits require additional acid to obtain a good gel.

Don't Get "Bugged" - Keeping Food Safe for You and Your Family

Learn about the Four Core Principles of Food Safety to prevent foodborne illness.

Food Waste: What You Can Do About It

Far too often, good food goes bad before we get the chance to eat it. This video highlights simple methods to reduce food waste and lower your grocery bill.

Key Ingredients for the Perfect Jam or Jelly

Ripeness and type of fruit determine a fruit's pectin content, both critical ingredients to making jam and jelly with a firm, tender texture, and excellent flavor.

Making Low Sugar Jam and Jelly with Low Methoxyl Pectin

Low methoxyl pectin, if correctly used, will create a gel in the absence of sugar and acid for those desiring jams and jelly containing less sugar.

Making Low or No Sugar Jam and Jelly

Commercial products are available that create a gel without sugar. Low and no sugar jam and jelly will have different characteristics than regular jam or jelly.

Preventing Crystal Formation when Making Jam and Jelly

Following proper procedure is critical to prevent jam or jelly from becoming grainy. This video describes causes as well as tips to prevent crystal formation.

Preventing Jam and Jelly from Not Setting

This video describes the possible causes of jam and jelly not gelling or setting, as well as tips to prevent this from happening.

Safe Handling and Preparation of Hamburgers

Raw meat can contain harmful bacteria that can lead to food-borne illness when not handled and prepared properly. Follow these practices to ensure that you, your friends, and family enjoy a safe meal.

Animals and Livestock

California Mastitis Testing for Dairy Cows

In this video, you will learn how to perform a simple mastitis test called the California Mastitis Test. This test will help to decrease mastitis on your farm.

Crossbreeding Dairy Cattle With Beef Semen

In recent years, the use of beef semen to breed dairy cows has increased at a dramatic rate. This video will explore a research program designed to investigate the outcomes of those crossbred matings, the calves.

Horse Manure and Pastures: Fertilizer Value and Other Considerations

Discuss the benefits and environmental risks of horse manure on pastures during this informative event!

Horses and Ticks Don't Mix - Protecting Your Horses From Tick Bites

Learn ways to protect your horses from tick bites this summer!

Observing Newborn Lambs

This video provides insight into the expected behavior and health of a newborn lamb. Close observation helps to ensure lambs are healthy and consuming enough milk.

Penn State Particle Size Separator (PSPS)

The Penn State Particle Size Separator (PSPS) is an effective tool to help determine proper particle length and feed distribution in dairy rations and forage samples.

Raising Pigs 1: Farrowing

Knowing a little about what is happening to the sow and piglets during farrowing can help farmers better care for their breeding swine herd, and improve piglet care during the birthing process.

Rotational Grazing for Horse Farms

Make the most of your pasture acreage using rotational grazing!

The Strip Yield Test

In this video, you will learn about an easy test that can be performed on your farm to test if overmilking is occuring. With these results you can monitor unit removal as well as adjust unit take off to reduce stress on teat ends.

Forests and Wildlife

Do Lichens Cause Harm to Trees?

Lichens are often thought to be a pest or disease to trees and shrubs.

Guide to Spongy Moth Egg Mass Surveying

Systematically survey egg masses of Lymantria dispar, or spongy moth (formerly "gypsy moth"), in fall and winter to assess the risk of damage next spring and decide whether aerially spraying control agents is worthwhile.

Invasive Shrub Control Strategies

Invasive shrubs are especially difficult to eradicate. Learn when and how to apply control measures, including herbicides, to control these undesirable plants.

Proper Chainsaw Sharpening Techniques

Learn about sharpening chainsaws during this webinar.

The Secret Life of Bluebirds

A behind the scenes and "inside the box" view of the secret and busy life of a nesting bluebird.

Thinking of Selling Your Timber? Beware of "High Grading"

A common form of timber cutting in Pennsylvania and many other states is known as high-grading. This practice is sometimes called "select", or "selective" cutting as it removes only the most valuable timber and leaves the rest in the woods.

Timber Sales: A Guide to Selling Timber

This publication is intended to help landowners understand some of the complex decisions around timber harvesting, and ensure a successful timber sale.

Tree of Heaven: Control Strategies

Tree-of-heaven is especially difficult to eliminate. Learn when and how to apply control measures, including herbicides, to eradicate this prolific tree.

Valuing Standing Timber and the Role of the Consulting Forester

As part of their ownership goals, woodland owners may want or need to harvest trees from their woods. Understanding the value of those trees is generally the first step in the process.

Why Does Lumber Need to be Dried?

After lumber is sawn from the log it must be dried before it can be put into use. The forest products industry spends a lot of time and money to dry lumber and this video explains the reasons why.

Water Resources

Agricultural Erosion and Sediment Control Planning Resources

In Pennsylvania, the area of agricultural land disturbance determines if a farm needs an Agricultural Erosion and Sediment Control Plan (Ag E&S Plan). Learn more about why these are important, if your farm needs a plan, and available resources.

Community Science Tool - First Investigation of Stream Health (FISH)

Learn to use FISH online tools for monitoring stream health, stream changes and updates.

Extension at Home: Backyard Stream Repair

Join us for the Extension at Home webinar series to prepare and protect your outdoor sanctuary.

Extension at Home: Homeowner's Guide to Stormwater

Join us for the Extension at Home webinar series to prepare and protect your outdoor sanctuary.

Extension at Home: Water Use, Conservation, and Testing

Learn all about water use, conservation, and testing during this live webinar!

How To Use the Penn State Drinking Water Test Kit

This video will walk you through how to use the Penn State drinking water test kit to successfully analyze the quality of your drinking water.

Protecting Dogs and Animals from Harmful Algae Blooms

Learn about harmful algae blooms and their possible toxins during this live webinar.

Roadside Guide to Clean Water: Manure Storage and Application

Manure is a great resource for farms because it contains valuable nutrients that benefit growing crops.

Roadside Guide to Clean Water: Riparian Buffers

A riparian buffer involves planting or retaining trees, shrubs, or tall grasses along the banks of rivers, streams, lakes, and ponds.

Solving Bacteria Problems in Wells and Springs

This video discusses various steps homeowners can take to solve or treat bacteria problems in wells, springs and cisterns used for drinking water.

Watershed-Friendly Property Certification Program

Learn how to manage your property to protect our waterways and how to apply to have your property officially certified!

What Are You Doing for Clean Water?

There are lots of ways that you can be actively involved in ensuring clean water for you and your family and for the environment.

Vector-borne Diseases

Extension at Home: Preventing Tick and Mosquito Bites

Join us for the Extension at Home webinar series to prepare and protect your outdoor sanctuary.

Horses and Ticks Don't Mix - Protecting Your Horses From Tick Bites

Learn ways to protect your horses from tick bites this summer!

Tick Series: Ecology and How to Approach Tick Control

This live webinar will discuss tick development, hosts, and where ticks are found.

Tick Series: Hunters and Vector-Borne Disease - A Tick-ing Time Bomb

Attend this Live webinar to learn how to protect yourself from ticks and other vector-borne diseases this hunting season!

Tick Series: Lyme Disease and Other Tick-Borne Diseases

Tick prevention, treatment, and more will be covered in this Live webinar.

Tick Series: Protecting Pets from Tick-Borne Disease

Ticks carry diseases that can greatly affect the health of your pets. Learn how to protect your pets from tick-borne diseases during this informative webinar.

Tick Series: Protecting Yourself from Tick Bites

Learn how to prevent tick bites during this live webinar!

Tick Series: Tick Prevention on Working, Hunting, and Farm Dogs

Protect your working dogs by learning about different types of ticks to look out for, how to prevent tick bites on your dog, and how to protect yourself!

Tick Series: Tick Protection Around the Home

Join our informative webinar to learn how to protect you and your family from tick bites while still enjoying your backyard this season!

Tick Series: Tick Risks for Pennsylvania Cattle

Learn how to control ticks in your herd with this webinar.

Tick Series: Vector-Borne Disease Basics

Learn about the basics of vector-borne diseases in Pennsylvania during this live webinar.