Purdue University - Extension - Forestry and Natural Resources
As winter comes swiftly upon us, there are precautions we need to take to ensure our plants, both indoor and outdoor, are well taken care of. Below are a few examples of how you can prevent certain problems that occur in the cold months ahead. View all of the steps you can take at the Purdue Extension Yard and Garden Calendar page.
HOME (Indoor plants and activities)
YARD (Lawns, woody ornamentals and fruits)
GARDEN (Flowers, vegetables and small fruits)
Resources
Winter Garden Calendar, The Education Store
Winter Storage of Geranium, Canna, Gladiolus, Caladium, and Begonia, The Education Store
Winterize Your Trees, The Education Store
Communities that have been infested by emerald ash borers can apply for a share of a federal grant received by the Indiana Department of Natural Resources. This federal grant worth $100,000 will allow for communities in the Great Lakes area to take on tree-planting projects. Due to the loss of trees in the infested areas, planting trees will help replace the large amounts of trees lost by the emerald ash borer. The tree planting project will also improve water quality. Flooding due to storms can cause raw sewage to enter waterways, but trees can intercept the water to stop the flooding. A three inch tree is able to intercept around 400 gallons of water; 800 trees can intercept 320,000 gallons of water which can greatly decrease the chances of flooding. Communities that would like to apply for a share in the grant can first subscribe to the grants information listserv by visiting the Indiana DNR’s forestry site and click on the red envelope on the left side of the page.
Resources
DNR Receives Grant to Help Communities Recover From Ash Borer, Indiana DNR
Emerald Ash Borer, Purdue Extension
Emerald Ash Borer, Indiana DNR
Invasive Insects, Got Nature?
Arrest That Pest! – Emerald Ash Borer in Indiana, Purdue Extension
Carrie Tauscher, Urban Forestry Specialist
Indiana Department of Natural Resources (INDNR)

Glycobius speciosus, sugar maple borer, photo by Steven Katovich, USDA Forest Service.
Some of the most diverse taxa on the planet are rarely seen yet play critical roles within our environment. The insects found in the Order Coleoptera (beetles) are represented by over 500,000 species. Collectively, these insects provide a wide range of ecosystem services. They are important pollinators and predators on other insects, and they play essential roles in nutrient cycling. While most species are beneficial or vital for ecosystem functions, there are a few species that are considered pests.

Dr. Jeff Holland and research team studying sugar maple borer in the woods.
The Sugar Maple Borer is a native species found throughout the eastern United States. The larval stage of the beetle specializes in feeding on sugar maple trees, particularly stressed or injured trees. In this podcast, our host, Rod Williams, will be interviewing Dr. Jeff Holland about the unique distribution of this wood-boring beetle, how to survey for this species on your property and the impacts to sugar maple trees throughout the eastern deciduous forests.
To find out more information about sugar maple borers, visit:
Holland Website
Bug Guide Identification
Resources
The Education Store (Search entomology or forest)
Got Nature? Blog Posts
Got Nature? Blog Posts
Jeff Holland, Associate Professor of Spatial Ecology and Biodiversity
Department of Entomology, Purdue University
Rod Williams, Associate Professor of Wildlife Science
Department of Forestry and Natural Resources, Purdue University
Agricultural educators, community organizers and others promoting environmental awareness can learn about the myths and realities of agricultural conservation from the perspective of a researcher, practitioner and student in a new Purdue Extension publication.
Adoption of Agricultural Conservation Practices: Insights from Research and Practice, developed by the Department of Forestry and Natural Resources at Purdue University, is available for free download from The Education Store.
The authors (Linda Prokopy, associate professor of Natural Resource Social Science; Dan Towery, Indiana Conservation Cropping System Initiative educator; and Nicholas Babin, postdoctoral research assistant in Forestry and Natural Resources) use academic studies and their own observations to address ways of motivating farmers to adopt environmentally-friendly farming practices.
To read the full article, visit Ag conservation publications available from Purdue Extension, Purdue Agriculture News.
Resources
Indiana Soils: Evaluation and Conservation Manual Review, Purdue Agronomy
Conservation Tillage and Water Quality, Purdue Extension
Optimizing Conservation Tillage Systems: Plant-to-Plant Uniformity is Essential for Optimum Yield in No-Till Cont. Corn, The Education Store
Linda Prokopy, Associate Professor of Natural Resource Social Science
Department of Forestry and Natural Resources
Emerald Ash Borer University will be providing webinars on the wood-boring pest, the Emerald Ash Borer, along with other pests and disease threats. These live sessions will allow participants to ask questions to the session presenter and moderators. The webinars will last from October to December 2014. To view the webinars, visit the Emerald Ash Borer website.
Resources
Emerald Ash Borer, Purdue Extension
Emerald Ash Borer, Indiana DNR
Invasive Species, Got Nature?
Arrest That Pest! – Emerald Ash Borer in Indiana, Purdue Extension
Cliff Sadof, Professor-Ornamental & Pest Management
Purdue Department of Entomology
For the first time in history, the majority of people reside in cities. For a species that evolved to live in small, primate tribes on the African Savanna, such a migration marks a dramatic shift. In recent years, it’s become clear that such unnatural surroundings have important implications for our mental and physical health and can powerfully alter how we think.
Enter the urban forest. This article, titled How The City Hurts Your Brain by Jonah Lehrer on Boston.com, shares some insight on healthy living in urban areas. Because of the huge migration to city life, urban forests and park spaces have become an integral part of living a healthy life. The good news is that even slight alterations, such as planting more trees in the inner city or creating urban parks with a greater variety of plants, can significantly reduce the negative side effects of city life.
To view more information, see the Urban Forests post from the National Association of State Foresters (NASF).
Trees are cultivated in public and private landscapes in and around cities and towns. They are grown for the tremendous contributions they make both to the environment and the quality of people’s lives. In this urban forest, trees must be removed when they die or for reasons of health, safety or necessary changes in the landscape. The wood from these felled landscape trees could potentially be salvaged and used to manufacture wood products but not in the same way as forest-grown trees. This publication describes some key differences between wood products from traditional forests and those available from urban forests.
Urban Wood and Traditional Wood: A Comparison of Properties and Uses is available at The Education Store as a free download.
Resources
Lumber from Hardwood Trees, The Education Store
Winterize Your Trees, The Education Store
Lumber from Urban and Construction-Site Trees, The Education Store
Indiana’s Urban Woodlots, The Education Store
Dan Cassens, Professor of Wood Products and Extension Specialist
Department of Forestry and Natural Resources
Edith Makra, Chairman
Illinois Emerald Ash Borer Wood Utilization Team
One of the most dangerous pests of trees is humans, especially humans with equipment. Lawn mowers and weed trimmers can cause injuries that can create a hazard when an injury leads to tree disease or death. This publication explains why the damage is so dangerous and suggests ways to protect your trees.
View Lindsey Purcell’s new publication, Mechanical Damage to Trees: Mowing and Maintenance Equipment, today at The Education Store.
Resources
Indiana’s Urban Woodlots, The Education Store
Tree Installation: Process and Practices, The Education Store
Lindsey Purcell, Urban Forestry Specialist
Department of Forestry and Natural Resources
The National Association of State Foresters (NASF) has now provided a Forest Action Plan for Indiana. With our dependency on forests, from clean air and timber to water and wildlife habitat, the sustainability of the forest resources was in question. The Indiana Forest Action Plan recognizes important issues that threaten the sustainability and ecological capacity of Indiana’s forests to provide for all Hoosier citizens.
The Forest Action Plan assessment and strategy can be found on the Forest Action Plans website.
Resources
Forest Action Plan, Indiana Department of Natural Resources
Forest Ecosystem Management in Indiana, The Education Store
Importance of Hardwood Tree Planting, The Education Store
Full Question: I have removed six Silver Maple trees (12″ – 16″ diameter) from my yard because of root intrusion and roots surfacing. Can I treat the stumps by drilling and applying copper sulfate and not be concerned with the existing roots “leaching” to newly planted trees? If there is leaching from the existing roots, how long a period must I wait before replanting a better species of tree(s)? My plans are to replant from approx. 5-6′ from the stump location of the trees that were removed.
Answer: The best treatment for stump and roots left behind from removals is grinding and time. Treating with chemicals is typically not a good solution, nor does it really speed up the process. In fact, copper sulfate is a very caustic chemical. It can cause illness and injury if inhaled or if it comes in contact with your skin. Also do not use copper sulfate if your tree stump is near a water source or if you have children or domestic animals that may accidentally come into contact with the treated area. The copper sulfate that comes into contact with the surrounding landscape can also kill grass, plants and other trees. So caution should be used if you feel the need to use it. However, grinding the stumps and planting into good soil outside the area of the woody debris from the stump is the best course of action. The roots should not cause any issues except depressions in the lawn as they decompose.
Resources:
Tree Installation: Process and Practices, The Education Store, Purdue Extension’s resource center
Tree Pruning Essentials, The Education Store
Tree Appraisal, The Education Store
Tree Installation: Process and Practices, The Education Store
Debrushing, Indiana Department of Natural Resources
Find an Arborist, Trees are Good
Tree wounds and healing, Got Nature? Blog
Ask an Expert: Tree Selection and Planting, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Planting Your Tree Part 1: Choosing Your Tree, Purdue Extension-FNR YouTube Channel
Subscribe to Purdue Extension-FNR YouTube Channel
Lindsey Purcell, Chapter Executive Director
Indiana Arborist Association