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Mulching Landscape Trees
Mulching Landscape Trees - Articles Articles

Mulching Landscape Trees

David R. Jackson

Mulches are materials placed over the soil surface to enhance landscape beauty, improve soil conditions, protect plants from foot traffic and lawn equipment, and suppress weeds. More
Spotted Lanternfly IPM Management Calendar
Spotted Lanternfly IPM Management Calendar - Articles Articles

Spotted Lanternfly IPM Management Calendar

Emelie Swackhamer, David R. Jackson, Art Gover

There are various management techniques to consider to destroy or control the Spotted Lanternfly. Learn the recommended methods to use during certain times of the year. More
Forestry with Confidence: A Guide for Woodland Owners
Forestry with Confidence: A Guide for Woodland Owners - Articles Articles

Forestry with Confidence: A Guide for Woodland Owners

David R. Jackson, Sanford S. Smith, Ph.D., Allyson Brownlee Muth, Ed.D.

This full color publication will assist woodland owners in examining their woodlands. More
Planting trees can speed up the natural succession from field to forest
Forest Landowners Guide to Tree Planting Success - Articles Articles
This article focuses on the values and methods of establishing wooded areas on rural property. More
Regenerating Hardwood Forests: Managing Competing Plants, Deer, and Light
Regenerating Hardwood Forests: Managing Competing Plants, Deer, and Light - Articles Articles
Competing plants, deer, and insufficient light on the forest floor can interfere with regeneration. This article addresses how to manage these issues. More
Herbicide treatments are often used to reduce competition between undesirable vegetation and planted or naturally established tree seedlings.
Chemical Control of Forest Vegetation - Articles Articles
This article details control methods involving pesticides and herbicides by application method. More
Photo credit: Todd Hagenbuch
Using Basal Bark Herbicide Applications to Control Understory Tree Species - Articles Articles
When considering basal bark treatments for timber stand improvement and/or forest regeneration establishment projects, it is important to know what species are targeted for treatment. More
Image 1. Dense shade cast by ferns interferes with seedling survival and establishment after germination. Excessive frond litter and root mats can also prevent adequate seedling germination and development.
Herbicides and Forest Vegetation Management - Articles Articles

Herbicides and Forest Vegetation Management

David R. Jackson, James Finley, Ph.D.

This article examines the use of forestry labeled herbicides to manage woodland vegetation, including choosing the right herbicide; application methods; and toxicity. More
Photo by Mike Eckley
Backpack Sprayer Calibration for Woodland Applications - Articles Articles

Backpack Sprayer Calibration for Woodland Applications

David R. Jackson, Kimberly Bohn, Ph.D., Art Gover

This article covers calibrating a backpack sprayer to determine how much herbicide to add for band applications and spot treatments. More
Tree of heaven leaves. Credit: Bigstock
Tree-of-Heaven - Articles Articles

Tree-of-Heaven

David R. Jackson

Tree-of-heaven (Ailanthus altissima) also known as ailanthus, Chinese sumac, and stinking sumac is a rapidly growing, deciduous tree native to a region extending from China south to Australia. More
Japanese Barberry
Japanese Barberry - Articles Articles

Japanese Barberry

David R. Jackson

Japanese barberry (Berberis thunbergii) was introduced from Japan around 1875. It now ranges from Nova Scotia south to North Carolina, and westward to Montana. More
Japanese and Giant Knotweed
Japanese and Giant Knotweed - Articles Articles

Japanese and Giant Knotweed

David R. Jackson

Japanese knotweed (Polygonium cuspidatum) and Giant knotweed (Polygonum sachalinensis) are two invasive, exotic weeds found throughout much of the United States and Canada. More
For large infestations specialized brush mowing equipment, such as the Fecon Bull Hog, can be used. Mowing will help remove the competitive height advantage and provide access for chemical treatments on resprouts.
Mechanical Control of Forest Vegetation - Articles Articles
This control approach involves hand or machine removal of interfering plants. Mechanical control practices generally involve cutting the target plant. More
Integrated vegetation management can be as simple as using a brush saw to cut undesirable vegetation and a backpack sprayer to apply an herbicide to the cut surface to prevent resprouting.
Integrated Forest Vegetation Management - Articles Articles
To sustain healthy forest ecosystems it is necessary to consider multiple vegetation management practices using a systematic approach called Integrated Vegetation Management (IVM). More
Forest Vegetation Management
Forest Vegetation Management - Articles Articles

Forest Vegetation Management

David R. Jackson

As a forest landowner or manager, there is a need for increased understanding of the impacts created by competing and invasive vegetation in our woodlots. More
Emerald Ash Borer
Emerald Ash Borer - Articles Articles

Emerald Ash Borer

David R. Jackson

Emerald Ash Borer (EAB) is a destructive, introduced insect of North American ash trees. It has been the cause of widespread ash tree decline and mortality throughout northeastern North America. More
This upland oak woodlot was commercially thinned. Thinning overstocked stands removes overcrowded trees and reduces the threat of severe insect and disease infestations.
Cultural Control of Forest Vegetation - Articles Articles
Cultural control practices enhance the growth of desirable plants and make the environment unsuitable for interfering plants. More
Fern-dominated forest understories interfere with forest regeneration and provide poor habitat for wildlife. Photo Credit: David Jackson
Controlling Understory Fern Competition for Regeneration Success - Articles Articles
Dense understories of hay-scented, New York, and bracken fern can interfere with the regeneration of hardwood forests, threatening their sustainability. More
A wilt disease (Verticillium albo-atrum), discovered in SE Pennsylvania, has been causing unprecedented wilt and mortality of invasive tree-of-heaven (Ailanthus altissima) and could be considered a potential bio-control agent.
Biological Control of Forest Vegetation - Articles Articles
This type of control involves one type of organism preying on another. More
Autumn Olive
Autumn Olive - Articles Articles

Autumn Olive

David R. Jackson

Autumn olive (Elaeagnus umbellata) is an exotic deciduous shrub and has been listed as a noxious weed throughout much of its range. More
Forest Landowners and Natural Gas Development
Forest Landowners and Natural Gas Development - Articles Articles

Forest Landowners and Natural Gas Development

David R. Jackson, Margaret C. Brittingham, Ph.D., Scott Weikert, James Finley, Ph.D.

Before signing a lease on your forestland, there are many things to consider to protect your interests. More
Forest Landowners and Natural Gas Development: Timber Resources
Forest Landowners and Natural Gas Development: Timber Resources - Articles Articles
Pennsylvania’s forests are an important renewable natural resource and include some commercially valuable species. They are more than just an economic resource. More