Penn State Extension

18 Results

List Grid

A Guide to Preserving Trees in Development Projects
A Guide to Preserving Trees in Development Projects - Articles Articles

A Guide to Preserving Trees in Development Projects

William Elmendorf, Ph.D., Henry Gerhold, Ph.D., Larry Kuhns

This publication explains tree health and environmental considerations and details how to preserve trees. More
Controlling Weeds in Nursery and Landscape Plantings
Controlling Weeds in Nursery and Landscape Plantings - Articles Articles

Controlling Weeds in Nursery and Landscape Plantings

Tracey Lynn Harpster, Jim Sellmer, Ph.D., Larry Kuhns

This guide explains how people who grow and maintain landscape and nursery plantings can develop effective weed control programs. More
Figure 1. Space requirements for resting and rising dairy cow
Designing and Building Dairy Cattle Freestalls - Articles Articles

Designing and Building Dairy Cattle Freestalls

Dan McFarland, John Tyson, Robert Graves, Ph.D., P.E.

Freestalls (cubicles) provide dairy cows a clean, dry, comfortable resting space. Well-designed and properly maintained freestalls are a key component in a freestall housing system. More
Natural Ventilation for Freestall Barns
Natural Ventilation for Freestall Barns - Articles Articles

Natural Ventilation for Freestall Barns

Robert Graves, Ph.D., P.E.

Cows continuously produce heat and moisture so a ventilation system is necessary to continuously exchange inside air for drier, cooler outside air. More
Natural Ventilation for Dairy Tie Stall Barns
Natural Ventilation for Dairy Tie Stall Barns - Articles Articles

Natural Ventilation for Dairy Tie Stall Barns

Robert Graves, Ph.D., P.E.

Tie stall barns require a ventilation system that allows close control of air exchange and temperature to prevent the barn from reaching freezing temperatures. More
Recommendations for Calf and Heifer Housing Dimensions for Jerseys
Recommendations for Calf and Heifer Housing Dimensions for Jerseys - Articles Articles

Recommendations for Calf and Heifer Housing Dimensions for Jerseys

John Tyson, Dan McFarland, Robert Graves, Ph.D., P.E.

Summary of design suggestions for planning calf and heifer housing systems for Jersey cattle; a starting point for the design process. More
Photo credit: Amber Yutzy
Recommendations for Calf and Heifer Housing Dimensions for Holsteins - Articles Articles

Recommendations for Calf and Heifer Housing Dimensions for Holsteins

John Tyson, Dan McFarland, Robert Graves, Ph.D., P.E.

Summary of design suggestions for planning calf and heifer housing systems for Holstein dairy cattle; a starting point for the design process. More
Choosing Plants Wisely
Choosing Plants Wisely - Articles Articles

Choosing Plants Wisely

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

To create and maintain a healthy landscape, choose plants that are suited to the conditions in your yard. More
Introduction to Creating Healthy Landscapes
Introduction to Creating Healthy Landscapes - Articles Articles

Introduction to Creating Healthy Landscapes

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

When a plant looks unhealthy or has been injured by an insect or a mite, often our first impulse is to apply a pesticide. More
Keeping Plants Well Groomed
Keeping Plants Well Groomed - Articles Articles

Keeping Plants Well Groomed

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

Debris that builds up in the landscape can harbor pests and plant diseases. More
Pest Management Methods
Pest Management Methods - Articles Articles

Pest Management Methods

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

IPM (integrated pest management) primarily consists of methods used to prevent plant problems from occurring in the first place. More
Plant with Care
Plant with Care - Articles Articles

Plant with Care

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

One of the most important steps you can take to ensure the health and long life of your plants is to plant them correctly. More
Promote Plant Health
Promote Plant Health - Articles Articles

Promote Plant Health

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

Healthy, vigorous plants are less vulnerable to attack by insects and disease. More
Monitor Pests and Keep Records
Monitor Pests and Keep Records - Articles Articles

Monitor Pests and Keep Records

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

Inspecting your plants on a regular basis is essential to identifying and evaluating plant problems in their early stages. More
Planting and After Care of Community Trees
Planting and After Care of Community Trees - Articles Articles

Planting and After Care of Community Trees

William Elmendorf, Ph.D., Larry Kuhns

This publication is for people who plant trees in public landscapes, such as streets and parks, but its advice also is useful to those who plant trees around homes and businesses. More
Nutrient Budgets for PA Cropland: What They Reveal and How Can They Be Used?
Nutrient Budgets for PA Cropland: What They Reveal and How Can They Be Used? - Articles Articles

Nutrient Budgets for PA Cropland: What They Reveal and How Can They Be Used?

Douglas Beegle, Ph.D., Robert Graves, Ph.D., P.E., Kristen Saacke Blunk

Nutrient budgets have been developed by Mid-Atlantic Regional Water Program to quantify the magnitude and sources of excess nutrients that are being generated and applied throughout Pennsylvania. More
Beautiful garden landscapes, like the one in this illustration, can be obtained through smart and heathy management plans
Creating Healthy Landscapes - Articles Articles

Creating Healthy Landscapes

Emelie Swackhamer, J. Robert Nuss, Larry Kuhns, Gregory Hoover

This article outlines steps to help homeowners take better care of landscape plants and provides an introduction to basic integrated pest management concepts. More
Many different species of fungi produce fruiting bodies called mushrooms.
What Is Growing in My Landscape Mulch? Mushrooms, Slime Molds, and Fungus - Articles Articles
This article describes four common types of fungi growing in landscape mulches in the eastern United States: mushrooms, slime molds, bird's nest fungus, and the artillery fungus. More