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.

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.

Unsafe Canning Methods

This video informs home food preservers what canning methods are no longer considered safe to use.

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.

Creep Feeding Principles for Lambs and Goat Kids

Discover the essential aspects of creep feeding, including setting up feeders, recommended designs, ideal feeds for creep areas, and the crucial do's and don'ts for successful implementation.

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!

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.

Poultry Houses - Biosecurity

Minimizing introduction and spread of potentially harmful organisms is critical on commercial poultry farms. This video demonstrates how to safely bring a visitor onto the premises.

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!

Understanding Highly Pathogenic Avian Influenza

This short video series helps backyard and small flock poultry owners understand Highly Pathogenic Avian Influenza (HPAI), its symptoms, and how it is spread.

Forests and Wildlife

Do Lichens Cause Harm to Trees?

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

Ethan Tapper on the Shape of Forest Stewardship

Ethan Tapper, forester and author, discusses the stewardship of his own forest and the acts of compassion he practiced to care for and heal the land.

Forest Mycology 101

Forest Mycology is the study of fungi that live in forests. These fungi play many roles in forest ecosystems, from decomposers to tree growth helpers. They are more than just mushrooms!

Hardwoods are Us

Pennsylvania is tops nationally for the quality hardwoods our forests grow, and the hardwood lumber we produce and export. It is the heartland of hardwoods.

Mini Maple Sugaring

Mini maple sugaring, also called backyard, small scale, or hobby sugaring, is a popular and sweet pastime. Recent advances have made it less time-consuming and laborious.

Service Forester Assistance for Forest Landowners

Forest landowners needing unbiased assistance managing their property should contact their county’s Service Forester. They work for PA DCNR, Bureau of Forestry, and their help is free.

The Green Illusion

Lush green vegetation does not always mean a forest is healthy or bodes well for the forest's future.

Tree Burl Breakdown

Tree burls are tumor-like growths in trees that produce dense, beautifully figured wood. They are highly prized and valuable for making one-of-kind objects.

Tree of Heaven: Accurate Identification

Learn the distinguishing characteristics of the invasive tree-of-heaven that you can use to accurately identify it.

Water Resources

Agricultural Erosion and Sediment Control Planning Resources

Learn more about Agricultural Erosion and Sediment Control Plans, why these are important, whether your farm needs a plan, and available resources.

Applying Herbicides in and Around Water

This video explains the regulations pertaining to landowners in Pennsylvania about proper use of herbicides in aquatic settings.

Growing Great Buffers

Growing Great Buffers is a series of short, helpful videos that describe step-by-step maintenance tasks needed for newly planted riparian buffers.

How Can I Manage My Lawn to Reduce Nutrient Pollution?

To protect water resources, we need to reduce the amount of lawn nutrients we add. Find out what you can do.

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.

Preventing Excessive Aquatic Plant and Algae Growth

When plants and algae grow abundantly, pond and lake owners often think about ways to eliminate the offending plant. Nutrient control is the long term solution.

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.

Saving Water Outside the Home

Many opportunities for water conservation exist outside of your home including plant and watering choices.

What are Permeable Surfaces?

Permeable surfaces are alternatives to typical paving methods that can help to greatly increase infiltration and decrease flooding and run-off issues

Vector-borne Diseases

Fight the Bite: Effective Repellents to Reduce Tick and Mosquito Bites

Repellents are one of the best ways to prepare to reduce the risk of tick and mosquito bites, but which repellents should you use? Watch this video to learn more.

Fight the Bite: Removing an Attached Tick

Sometimes ticks are hard to see, and you might miss one while doing a tick check. How do you remove a tick to reduce your risk of pathogen transmission? Watch this video to learn more.

Fight the Bite: Treating Clothes with Premethrin to Prevent Tick and Mosquito Bites

This video will explain what permethrin is and show how to apply permethrin as a tick repellent to clothes.

Know Your Risk: Important Vector-borne Diseases in the Northeastern United States

Vector-borne diseases are caused by pathogens transmitted by a biting arthropod like a tick, mosquito, or flea. There are many vector-borne diseases of global importance, and several are found in the United States.

Know Your Risk: What are Vector-borne Diseases?

Vector-borne diseases are those that are caused by pathogens transmitted by a vector which in many cases is an insect or other arthropod.

Know Your Vector: Common Ticks of Pennsylvania

With over 900 species of ticks worldwide, what kinds of ticks can you expect to find in Pennsylvania?

Know Your Vector: Mosquito Life Cycle

By understanding the life cycle of mosquitoes, we can apply mosquito control tactics at different life stages of the mosquito.

Know Your Vector: The Tick’s Life Cycle

Understanding the life cycle is important in preventing ticks and subsequent tick bites and tick-borne pathogen transmission.

Tick Safe Hunting Practices: Ticks vs. Keds

Ticks and deer keds are both arthropods that may bite hunters, but what is the difference between them? Watch this video to learn what makes deer keds different from ticks.