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Purdue Landscape Report: April showers bring May Flowers. Many of us were taught this little rhyme to describe the weather of Spring.  April has arrived along with the beginning of the Spring storm season and damage to and from trees is a topic of concern on many minds.  Depending on the intensity of the storms and the condition of the trees, damage from high winds, heavy rainfall, and lightning can be quite severe. Cracked or broken branches, stem failure, and root failure are some of the main concerns, but also the risk and liability of damage to people and property.

If your tree is damaged, there are some steps to deal with the situation. First and foremost, consider the safety of yourself and others around you. Inspect the tree from a distance first, looking for the following:

• Heaving of the ground, indicating potential root failure
• Damage to limbs and/or the trunk of the tree
• Hanging branches can fall to the ground, resulting in injury or death
• Be aware of utility and power lines. Trees can become charged by coming in contact with live wires. All utility lines should be considered energized and dangerous.

If you find your trees damaged from a storm hiring an International Society of Arboriculture (ISA) Certified Arborist to perform a risk assessment will help guide your decision of how to manage your tree. To find an arborist near you and verify credentials, use the link at Find an Arborist, Trees are Good, International Society of Arboriculture (ISA). For more information, you can also view the publication Trees and Storms, located in The Education Store, Purdue Extension’s resource center.

Subscribe and receive the newsletter: Purdue Landscape Report Newsletter.

Resources:
Find an Arborist video, Trees are Good-International Society of Arboriculture (ISA)
Trees and Storms: Understanding Damage, Risk and Recovery – Got Nature? Blog, Purdue Extension – FNR
Caring for storm-damaged trees/How to Acidify Soil in the Yard – In the Grow, Purdue Extension
Why Is My Tree Dying? – The Education Store
Tree Risk Management – The Education Store
Mechanical Damage to Trees: Mowing and Maintenance Equipment – The Education Store
Trees and Electric Lines – The Education Store
Tree Risk Management – Got Nature? Blog, Purdue Extension – FNR
Planting Your Tree, video, The Education Store
Tree Installation, The Education Store
Tree Wound and Healing, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources
Ask an Expert: Tree Selection and Planting, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Tree Pruning Essentials, Purdue Extension – FNR YouTube Channel
Subscribe – Purdue Extension-FNR YouTube Channel

Ben McCallister, Urban Forestry Specialist
Purdue Forestry & Natural Resources

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Congratulations to Liz Jackson, FNR Extension Specialist, on receiving the 2025 Indiana Hardwood Lumbermen’s Association (IHLA) President’s Award. This award is given for exceptional contribution to the forest products industry and to members of IHL. We are proud to celebrate her achievements along with seeing her featured in the April 2025 edition of the Agriculture & Natural Resources (ANR) newsletter.

Agricultural & Natural Resources (ANR) Newsletter: Liz has worked as an Extension specialist associated with three forestry organizations since March 2004. Liz obtained her BS in forest products (’82) from Purdue’s Forestry & Natural Resources Department and MS in business management (’84) from Krannert School of Business under a special forestry/business master’s program.

Before coming to Purdue Extension, Liz spent 15 years in wood products manufacturing as a plant manager at Aristokraft cabinets (now MasterBrand) and purchasing and inventory control manager at Lafayette Venetian Blind.

Liz’s Extension role is to provide programs and products on sustainable forest management and forest stewardship to address woodland owners’ concerns and needs. While representing the Department of Forestry and Natural Resources, she works on behalf of three organizations.

The Hardwood Tree Improvement and Regeneration Center (HTIRC) is a research partnership between Purdue FNR and the USDA Forest Service focusing on management, protection and improvement of fine hardwood species. For the HTIRC she coordinates annual meetings, research conferences and educational programs.

For the Indiana Forestry & Woodland Owners Association (IFWOA) and National Walnut Council, she represents the interests of the members and manages all business of the associations, including board meetings, annual conferences and education programs, membership and finances, and communications, including newsletters, websites and social media.

Liz is involved in many partnerships around the state, including as a member of the Extension Invasive Species Working Group, on the editorial board for Indiana Woodland Steward newsletter, member of NRCS state technical committee, and advisory partner with Indiana DNR Division of Forestry Forest Stewardship Committee, Sentinel Landscapes, and Let the Sun Shine In Indiana programs.

A highlight of her career was traveling to Washington, D.C., in 2005 to see Sen. Richard Lugar of Indiana and representatives from HTIRC and Indiana forestry plant an Indiana walnut tree on the U.S. Capitol grounds. Ten years later she returned to the site and was thrilled to find the tree and see it was thriving.

Resources:
Indiana Forestry & Woodland Owners Association (IFWOA) YouTube Channel
Observing Seasonal Changes in Nature Webinar with Amanda Wanless, IFWOA YouTube Channel
Magnificent Trees of Indiana Webinar with Author Carroll Ritter, IFWOA YouTube Channel
Ask the FNR Expert: Pests in your Woods, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube Channel
Directory of Professional Foresters, Indiana Forestry & Woodland Owners Association (IFWOA)
Indiana Woodland Steward E-newsletters, Eleven Member Organization
Invasive Species, Playlist, Purdue Extension – FNR YouTube Channel
Invasive Plant Species Identification, Video, Purdue Extension – FNR YouTube Channel
Subscribe – Purdue Extension-FNR YouTube Channel

Agricultural & Natural Resources (ANR), Purdue Extension

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Join Purdue Extension forester Lenny Farlee in this episode of “A Woodland Management Moment” as he explores the unique ecosystem of bottomlands. These flat, moisture-rich environments are home to a diverse array of species, shrubs, and trees. Watch the video to discover the key features and characteristics of these fascinating sites.

 

If you have any questions regarding trees, forests, wildlife, wood products, or other natural resource topics, feel free to contact us by using our Ask an Expert web page.

Resources:
A Woodland Management Moment, Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
The Nature of Oaks Webinar, Purdue Extension-FNR YouTube Channel, Shared from Indiana Forestry & Woodland Owners Association
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
Shrubs and Woody Vines of Indiana and the Midwest, Purdue University Press
Native Trees of the Midwest, Purdue University Press
ID That Tree, Playlist, Purdue Extension – FNR YouTube Channel
Investing in Indiana Woodlands, The Education Store
Woodland Stewardship for Landowners Video Series, Playlist, Indiana Department of Natural Resources YouTube Channel
Ask an Expert: Tree Selection and Planting, Purdue Extension – FNR YouTube Channel
Forest Improvement Handbook, The Education Store
Find an Indiana Professional Forester, Indiana Forestry & Woodland Owners Association (IFWOA)
Purdue Arboretum Explorer

Lenny Farlee, Extension Forester
Hardwood Tree Improvement and Regeneration Center
Purdue Department of Forestry & Natural Resources

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While the weather may tell you otherwise, spring is upon us. With the changing weather comes greening grass, breaking buds and sprouting plants. This plethora of fresh growth can help cure the winter blues, but it also provides wildlife with a desirable food source. Recently you may have noticed deer and other wildlife’s increased utilization of winter wheat fields and other green areas like lawns – early spring is the time you see deer in Indiana feed extensively on grass.

For homeowners, this is the time you need to scout around your home for emerging plants in your lands​caping beds. Plants that are frequently browsed by deer such as tulips or hostas need special attention, but the limited amount of green plant material can leave any plant as a potential target. Most homeowners choose a type of taste repellent to protect plants. There are several tips on how to increase the efficacy of this approach.

1. Timing: It helps to have some foresight into when damage is likely to occur and/or the plant developmental stage(s). Unfortunately, this is usually based on past experience. Ideally, you want to time applications during these periods.  With tulips, for example, applying repellents early during sprouting, later during sprouting and during flower bud development will prevent damage during most years.
2. Type of repellent: There are many types of taste repellents labeled for deer and other wildlife species. Most have a combination of capsaicin, putrefied egg solids and/or fatty acids of ammonium soaps. There are, of course, others with different ingredients. So which do you choose? There have been many studies that have investigated the efficacy of repellents. The bottom line – they work, but control is not 100%.
3. Label: Failures can often result when not following the directions on the label. The label also provides safety information and what you can/can’t spray. Read and follow the label – it’s the law.
4. Expectations: You aren’t going to solve all of your wildlife problems by spraying a few plants or even everything. If you use repellents, reapply according to label directions (every three to four weeks is usually a good rule of thumb). To increase success, you may use them as part of an integrated approach that includes exclusion, cultural practices and other approaches.

Resources
Diagnosing and Controlling Wildlife Damage, The Education Store, Purdue Extension’s rescource center
Preventing Wildlife Damage – Do You Need a Permit?, The Education Store
Wildlife Conflicts, Purdue University
New Tool for Helping Landowners to Help Declining Birds, Got Nature? Blog, Purdue Extension – Forestry & Natural Resources (FNR)
Forest Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
Ask the Expert: Hardwood Ecosystem Experiment – Birds and Salamander Research, Purdue Extension – FNR
Developing a Wildlife Habitat Management Plan, The Education Store
The Nature of Teaching, Purdue Extension
ID That Tree, Playlist, Purdue Extension – Forestry and Natural Resources Youtube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR Youtube Channel
Shrubs and Woody Vines of Indiana and the Midwest, Purdue University Press
Native Trees of the Midwest, Purdue University Press
Forest Improvement Handbook, The Education Store
Fifty Common Trees of Indiana, Purdue Extension – FNR
Invasive plants: impact on environment and people, The Education Store
ReportINvasive, Purdue College of Agriculture – Entomology
Cooperative Invasive Species Management Area (CISMA)
District Forester, Indiana Department of Natural Resources, 10+ acres
Find an Arborist, International Society of Arboriculture

Brian MacGowan, Extension Wildlife Specialist
Department of Forestry and Natural Resources​

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Purdue Landscape Report: These oak trees are showing the symptoms of smooth patch ( see below Figures 1, 2, 3).  This condition is the result of a fungal infection that is restricted to the outer bark, causing it to slough off. The bark layer remaining is smoother and lighter in color than uninfected, normal bark.

Patches can vary from a few inches to a foot or more in diameter and may occur on branches as well as the trunk.  Several fungi can cause this condition. A common species, Aleurodiscus oakesii, produces clusters of flat, disc-like spore-bearing structures on the surface of the smooth bark. These structures are gray or beige in color and are usually less than 1⁄2 inch in diameter (Figure 4).

The best time to see this interesting phenomenon in the forest is during wet periods in late winter before new spring growth begins, when the light gray bark stands out in the light penetrating the canopy. The fungal structures shrink when dry so will be more apparent following rainy weather.

 

The fungal structures may be mistaken for wood decay fungi, but because smooth patch fungi invade only the nonliving, outer bark tissues, they do not affect the health of the tree. No control measures are needed.

 

The fungal structures may be mistaken for wood decay fungi, but because smooth patch fungi invade only the nonliving, outer bark tissues, they do not affect the health of the tree. No control measures are needed.

Resources:
Indiana Forestry & Woodland Owners Association (IFWOA) YouTube Channel
District Forester, Indiana DNR Division of Forestry, for over 10 acres of woodlands
Directory of Professional Foresters, Indiana Forestry & Woodland Owners Association (IFWOA)
Indiana Woodland Steward E-newsletters, Eleven Member Organization
The Nature of Oaks Webinar, Purdue Extension-FNR YouTube Channel, Shared from Indiana Forestry & Woodland Owners Association
Purdue Arboretum Explorer
Native Trees of the Midwest, Purdue University Press
A Woodland Management Moment, Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
Forest Improvement Handbook, The Education Store
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube Channel
ID That Tree – Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Invasive Species, Playlist, Purdue Extension – FNR YouTube Channel
Invasive Plant Species Identification, Video, Purdue Extension – FNR YouTube Channel
Report Invasive Species, Purdue Invasive Species
Subscribe – Purdue Extension-FNR YouTube Channel

Tom Creswell, Plant & Pest Diagnostic Laboratory Director
Purdue Botany and Plant Pathology

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Purdue Landscape Report: The bitter winter cold has finally passed us (or has it? It’s hard to tell in the Midwest)! The days are getting warmer and longer, and that means the insects are coming out of their overwintering stages. As you prepare for your landscaping and gardening this year, are you implementing preventative measures for pests? Now is the time to think about those strategies to minimize the damage to your plants.

Preventing pest issues is foundational to integrated pest management. The first step is always to start with healthy and clean plants. Don’t be afraid to bring a hand lens to the store and check for those hard-to-see pests! You don’t want to bring a problem home. Next, remember that many pests will thrive due to improper watering, light conditions, or fertilization. Avoid these issues by reviewing the recommendations for your plants and consulting a soil test. (Read more about why soil tests are essential!)

Finally, which pests/diseases do you anticipate? What are the most common pests on the plants in your landscape? Perhaps you have had issues in past years and know what to expect. Review the biology of these pests and consider implementing preventative measures now. Let’s look at a couple of examples of frequent landscape pests and some management options you can add to your list of spring preparations.

Spider Mites

Spider mites overwinter on the host plant or in leaf litter. Around this time of year, cool season mites such as spruce mites and boxwood mites are the dominant issue. Check your plants now for these spider mites, and scout regularly to make sure populations aren’t getting out of control. A rainy spring will help keep the pressure low. If you have to spray, avoid chemicals that will harm natural enemies, which are vital to spider mite management. (Learn more about spider mite management: Spider Mites on Ornamentals; and check out the Purdue Plant Doctor Quick Guide: Managing Spider Mite Mayhem)

Bagworms

Bagworms overwinter as eggs in the bags left on the tree. They’re frequent pests of arborvitae, junipers, and several other trees and shrubs. Take action now to prevent an infestation in the summer that requires costly pesticides. Manually remove the bags from your tree and drown them in soapy water. (Learn more about bagworm management: Bagworms).

Lace Bugs

Lace bugs may overwinter as eggs or adults, depending on the species. They become active again in the spring, so now is a good time to check for these pests. Focus on the undersides of the leaves where the pests are found. Lace bugs prefer hosts planted in sunny areas with a lack of plant diversity, so consider including some flowering plants in your landscape to provide pollen and nectar to beneficials. (Learn more about Lace bug management from the Purdue Plant Doctor Quick Guide: Managing Lace bugs).

What pests do you encounter in the landscape? Take a moment to review their biology and your options for preventative management. Be proactive now and reduce your pest problems for the season ahead. Read the original article, Insects are waking up – are you prepared?

Alicia Kelley, Cooperative Agricultural Pest Survey (CAPS) Coordinator
Purdue Extension – Entomology

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Indiana Forestry & Woodland Owners Association (IFWOA) News: If you live in Indiana and own more than ten acres of woodlands, then you may want to enroll in the Classified Forest and Wildlands Program offered through the Indiana Department of Natural Resources (DNR), Division of Forestry. This program encourages timber production, watershed protection, and wildlife habitat management on private lands in Indiana. Program landowners receive a property tax reduction in return for following a professionally written management plan. In addition to the tax incentive, landowners receive free technical assistance from DNR foresters and wildlife biologists, priority for cost-share to offset the cost of doing management, and the ability to “green” certify their forests. The minimum requirement for program enrollment is 10 acres of forest, wetland, shrubland, and/or grassland.

“Once enrolled in our program, you get a reduced property tax assessment,” says Gretchen Herbaugh, District Forester with Indiana DNR serving southwestern Indiana.

“Property can be anything from forest ground to native grasses to pollinator habitats to wildlife food plots—we span a large range of habitat types and management styles,” Herbaugh says.

For full IFWOA article view: Indiana DNR Offers a Special Program for Woodland Owners.

To learn more about the program with more resources view the Hoosier Ag Today article, Indiana DNR Offering a Special Program for Woodland Owners.

Resources:
Subscribe, IFWOA YouTube Channel (includes The Nature of Oaks, Be Tick Aware, Population Ecology of Deer and more)
Find an Indiana Professional Forester, Indiana Forestry & Woodland Owners Association (IFWOA)
Purdue Arboretum Explorer
Native Trees of the Midwest, The Education Store
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
Investing in Indiana Woodlands, The Education Store
Forest Improvement Handbook, The Education Store
ID That Tree, Purdue Extension-Forestry & Natural Resources (FNR) YouTube playlist
Woodland Management Moment , Purdue Extension-FNR YouTube playlist
District Foresters for 10 plus acres, Indiana Department of Natural Resources
Financial and Tax Aspects of Tree Planting

Diana Evans, Extension and Web Communication Specialist
Purdue University Department of Forestry and Natural Resources

Liz Jackson, Engagement Lead
Indiana Forestry & Woodland Association (IFWOA)

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Join Purdue Extension forester Lenny Farlee and wildlife specialist Brian MacGowan as they help you prepare for the holidays while keeping your family and local wildlife safe. This video discusses everything from how to choose and care for a real Christmas tree as well as what to do with it after the season and also how to make wildlife/nature-friendly decorations.

Topics Include:
– What can I do with my tree after Christmas that would benefit wildlife?
– Are artificial structures legal in Indiana lakes?
– What types of items can I collect from the wild for holiday decorations?
– How do I do it in an environmentally responsible way?
– Are there some things I shouldn’t or can’t collect?
– What outdoor holiday decorations can benefit wildlife?
– How do I make it last longer?
– Can I avoid problems with non-target wildlife?

If you have any questions regarding trees, forest management, wildlife, wood products or other natural resource topics, feel free to contact us by using our Ask an Expert web page.

Resources
Selecting an Indiana-Grown Christmas Tree, The Education Store, Purdue Extension resource center
Tips for First-Time Buyers of Real Christmas Trees, The Education Store
Indiana Christmas Tree Growers Association
Purdue University Invasive Species resources
Indiana DNR Division of Fish and Wildlife for wildlife possession rules
Feed the birds with a DIY wreath, Audubon
Dan Cassens: Tips for First-Time Christmas Tree Buyers, Video, Purdue Agriculture
Dan Cassens: Starting Your Own Christmas Tree Farm, Video

Lenny Farlee, Sustaining Hardwood Extension Specialist
Purdue University Department of Forestry and Natural Resource

Brian MacGowan, Extension Wildlife Specialist
Department of Forestry & Natural Resources, Purdue University

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A real Christmas tree is an important part of a holiday celebration for many Hoosier households. Consumers have several choices for purchasing a real tree, including pre-cut trees at retail outlets or seasonal sales locations, choose-and-cut trees at Christmas tree farms, or even live trees that can be replanted after the holidays. Purdue Extension offers two publications that can help you select and care for your tree: Tips for First-Time Buyers of Christmas Trees provides advice and direction on how to set up and care for your tree to improve safety and enjoyment. Selecting an Indiana-Grown Christmas Tree provides details on the characteristics of different species of real Christmas trees available in Indiana, as well as care instructions for cut and live Christmas trees.

Pre-cut real Christmas trees are available at many retail outlets like garden centers, supermarkets, or seasonal sales locations. If you are looking for local choose-and-cut Christmas tree farms you can consult local media and advertising outlets or the Indiana Christmas Tree Growers Association. Some garden centers and Christmas tree farms may also offer live trees for sale.

If you are considering growing your own Christmas trees for personal use or sale, the Extension publications Growing Christmas Trees and A Choose-and-Cut Pine and Fir Christmas Tree Case Study outline economic and management considerations for growing Christmas trees.

Check out the Ask an Expert: Holidays in the Wild as the experts answer questions regarding Christmas trees along with wildlife you may see while you walk in the woods this winter. In this Ask an Expert video they share resources about picking a real Christmas tree and how to access real trees locally in Indiana as well as collecting decoration materials like cones, seed pods and nuts form the wild for crafting and decorating. They also discuss how you can provide habitat and supplemental food for wildlife using Christmas trees and wreaths before, during and after the holiday season.

Resources:
A Choose-and-Cut Pine and Fir Christmas Tree Case Study, The Education Store, Purdue Extension’s resource center
Living Christmas Trees For The Holidays and Beyond, IN Yard & Garden, Purdue Consumer Horticulture
Tips for First-Time Buyers of Real Christmas Trees, The Education Store
Growing Christmas Trees, The Education Store
Selecting an Indiana-Grown Christmas Tree, The Education Store
Winterize Your Trees, The Education Store
Tree Installation: Process and Practices, The Education Store
What do Treed Do in the Winter?, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources (FNR)
Forest/Timber Playlist, subscribe to Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Ask the Expert: Holidays in the Wild, Purdue Extension – FNR YouTube Channel
ID That Tree: Balsam Fir, Purdue Extension – FNR YouTube Channel
ID That Tree: Scotch Pine, Purdue Extension – FNR YouTube Channel
To identify other pine trees view ID That Tree, Purdue Extension – FNR YouTube Channel

Lenny Farlee, Extension Forester
Hardwood Tree Improvement and Regeneration Center
Purdue Department of Forestry & Natural Resources

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In this episode of A Woodland Management Moment, Purdue Extension forester Lenny Farlee discusses the benefits of maintaining certain areas of your forest land with alternative types of cover rather than traditional forest. It’s a good idea to keep some areas open not only for recreational purposes but also for future timber harvesting and to provide habitat for many wildlife. By allowing some of your land to be open, you help maintain the natural habitat around you and can even get some interesting plants that will grow on their own.

If you have any questions regarding trees, forests, wildlife, wood products or other natural resource topics, feel free to contact us by using our Ask an Expert web page.

Resources:
A Woodland Management Moment, Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Learn How to Support Oak-Hickory Ecosystems, Purdue Extension – FNR Got Nature? Blog
The Nature of Oaks Webinar, Purdue Extension-FNR YouTube Channel, Shared from Indiana Forestry & Woodland Owners Association
Oak Leaf Tatters, Purdue Landscape Report
Inonotus Dryadeus, Butt and Root Rot of Oaks, Purdue Extension – FNR Got Nature? Blog
Predicting the Height Growth of Oak Species Reproduction Over a 23-year Period Following Clearcutting, Hardwood Tree Improvement & Regeneration Center (HTIRC)
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store, Purdue Extension Resource Center
Native Trees of the Midwest, The Education Store
ID That Tree, Playlist, Purdue Extension – FNR YouTube Channel
Investing in Indiana Woodlands, The Education Store
Woodland Stewardship for Landowners Video Series, Playlist, Indiana Department of Natural Resources YouTube Channel
Ask an Expert: Tree Selection and Planting, Purdue Extension – FNR YouTube Channel
Forest Improvement Handbook, The Education Store
Find an Indiana Professional Forester, Indiana Forestry & Woodland Owners Association (IFWOA)
Purdue Arboretum Explorer

Lenny Farlee, Extension Forester
Hardwood Tree Improvement and Regeneration Center
Purdue Department of Forestry & Natural Resources

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