Got Nature? Blog

In this edition of ID That Tree, Purdue Extension Forester Lenny Farlee showcases the unique features of prickly ash. The northeast member of the Citrus family (not the Ash family!) is a shrub with stout, paired thorns, reddish-brown buds and also has other traits shared in the video that makes it easy to spot out in the wild. This video contains nice close-up shots so you can identify this plant, which is native to Indiana and an important part of the habitat.

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

Resources:
ID That Tree: Firs and Spruces, Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
ID That Tree – Jack Pine, Scotch Pine, Red Pine, Virginia Pine, Eastern White Pine, Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Beat Back Borers Attacking Pines and Other Cone Bearing Trees, Purdue Landscape Report
Tree Diseases: White Pine Decline in Indiana, The Education Store, Purdue Extension Resource Center
Purdue Arboretum Explorer
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube Channel
Indiana Department of Natural Resources: Invasive Species
Indiana Invasive Species Council
Cooperative Invasive Species Management Area (CISMA)
Report Invasive, Purdue Extension
Episode 11 – Exploring the challenges of Invasive Species, Habitat University-Natural Resource University
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
Native Trees of the Midwest, The Education Store
Professional Forester, Indiana Forestry Woodland Owners Association
Forest Improvement Handbook, The Education Store
Find an Arborist, International Society of Arboriculture

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

---

When do you need to discard your real Christmas tree? What options are there in disposing the tree?
Check out these tips from our Purdue experts:

Lenny Farlee, Purdue Extension Forester with Forestry and Natural Resources, in interview with the WLFI news team shares the first steps is to remove all decorations. “Several municipalities here in the area will either take the trees for mulching or composting. So if you don’t want to fool with the tree anymore, that’s a great option. You can just take it to the curb, or certain locations, and they’ll take care of it for you and it gets reused or recycled into usable material,” explains Farlee.  Choosing to keep the tree in your backyard is a great wildlife friendly option. Lenny shares how important it is to remove your tree in a timely manner to avoid any fire hazards in your house. The video explains on how you can test your tree to see if it should be discarded. See video and full article for more options: Options for Getting Rid of Real Christmas Tree, wlfi.com.

John Woodmansee, Purdue Extension Educator-Agriculture Natural Resources (ANR), also shares tips in the Purdue Extension article Recycle Your Christmas Tree. If you have permission and/or have access to a private pond you can discard your tree in the pond to improve fish habitat.

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, The Education Store
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
Repurposing Your Real Christmas Tree, Purdue Extension News
An Introduction to Trees of Indiana, The Education Store
Native Trees of the Midwest, The Education Store
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
ID That Tree, Playlist, Subscribe to Purdue Extension – Forestry and Natural Resources YouTube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
Investing in Indiana Woodlands, The Education Store
Forest Improvement Handbook, The Education Store
Finding help from a professional forester, Indiana Forestry & Woodland Owners Association
District Foresters for 10 plus acres, Indiana Department of Natural Resources
Wood Products, FNR Concentration

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

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

---

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
ISDA Indiana Grown Christmas Tree Farm map, Indiana Grown
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

---

Purdue Landscape Report: Dieback and canker diseases caused by Botryosphaeria, Sphaeropsis, Diplodia and other closely related fungal pathogens are exceptionally common on woody landscape plants. This group of diseases are often referred to collectively as Botryosphaeria diseases and this article will follow that convention to discuss them as a group. Examine any mature oak tree long enough and you’re likely to find at least some stems dying due to Botryosphaeria. Check the base of dying stems of cranberry bush viburnum and you’re likely to find a Botryosphaeria canker. Look closely at sunken cracked stems and dieback on redbud and, you guessed it, more Botryosphaeria.

Botryosphaeria is opportunistic and is often seen killing individual branches that have been wounded or attacked by other diseases, providing an entry point for the fungus. (Fig 1) Stress factors like drought, freezing or defoliation due to disease or insect attack increases susceptibility to infection, and reduces plant defenses so that existing infections often move faster down the stem. However, wounds are not required for infection. In susceptible trees and shrubs, the fungus may attack the smallest twigs and later spread to larger branches where they cause cankers.

Symptoms:
Discoloration and death of leaves on individual stems may point to Botryosphaeria canker at the base of the dying stem (Fig 2). As the canker girdles a stem, the portion of the stem above the canker gradually dies. Smaller twigs with immature bark may become discolored as the pathogen spreads. Symptoms may vary depending on the plant species infected. In many cases the infection fails to completely encircle the stem, resulting in stems with half necrotic and half living stem tissue (Fig 3).

Botryosphaeria cankers usually cause bark to be cracked, sunken and discolored (Fig 4). Fruiting bodies of the fungus appear as pinhead-sized black specks embedded in the bark, which may be raised in small bumps covering the cankers.

Management:
Prevention of infection depends mainly upon avoiding unnecessary wounding and minimizing environmental stresses that induce susceptibility. Avoid allowing trees and shrubs, especially those recently transplanted, to become drought stressed. Keep plants in good condition and in moderate growth. Avoid high fertilizer rates that induce rapid, succulent growth that may be more susceptible to infection.

Prune out and destroy any dead branches at least six inches below discoloration in the bark or sapwood. Be sure to clean pruning tools with a disinfectant after working on infected plants.

Fungicides have not been effective at preventing infections, and once the fungus is inside the wood fungicides can’t touch it, so they are generally not recommended in the landscape.

Avoid using highly susceptible plants, such as Viburnum trilobum or Salix spp., in drought prone sites.

Resources:
Botryosphaeria Canker, Purdue Plant Doctor
Beat Back Borers Attacking Pines, Purdue Landscape Report
Black Spot of Elm, Purdue Landscape Report
Inonotus Dryadeus – Butt and Root Rot of Oaks, Purdue Landscape Report
Stories in the Bark – Patterns and Growth, Purdue Extension – Forestry & Natural Resources Got Nature? Blog
Root Rot in Landscape Plants, The Education Store, Purdue Extension resource center
Dead Man’s Fingers, Purdue Landscape Report
ID That Tree Fall Color: Sugar Maple, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
ID That Tree Fall Color Edition: Black Gum, Purdue Extension – FNR YouTube Channel
An Introduction to Trees of Indiana, The Education Store
Tree Defect Identification, The Education Store
Tree Wound and Healing, Got Nature? Blog, Purdue Extension – FNR
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
Ask an Expert: Tree Selection and Planting, Purdue Extension – FNR YouTube playlist
ID That Tree, Purdue Extension – FNR YouTube playlist
Invasive Species, Playlist, Purdue Extension – FNR YouTube Channel
Report Invasive Species, Purdue Invasive Species
Find an Arborist, International Society of Arboriculture
Subscribe, Purdue Extension – FNR YouTube Channel

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

---

Wild Bulletin, Indiana Department of Natural Resources (DNR) Fish and Wildlife: Instead of raking and bagging leaves this fall, consider allowing them to stay and naturally decay. Fallen leaves, plant stems, flower heads, twigs, and logs provide crucial winter habitat for Indiana’s wildlife.

The warmth and cover of leaves provide shelter for Eastern box turtles, salamanders and frogs, as well as insulation for butterflies and moths. Leaf piles can even benefit landscaping, as they can suppress weeds, retain moisture, and add nutrients to the soil as they decay. Leaves don’t have to be left exactly where they fall—you can rake them into flower beds and around tree bases.

For more information about creating habitat for wildlife in your backyard, visit the DNR website and the Wildlife Habitat Fact Sheet.

Subscribe to Wild Bulletin.

Resources:
Frost Seeding to Establish Wildlife Food Plots and Native Grass and Forb Plantings – The Education Store, Purdue Extension’s resource center
Wildlife Habitat Hint: Tips for Evaluating a First Year Native Grass and Forb Plantings, Purdue Extension – FNR YouTube Channel
Drone Seeding Native Grasses and Forbs: Project Overview & Drone Setup, Purdue Extension – FNR YouTube channel
Forest Improvement Handbook, The Education Store
Ordering Seedlings from the State Forest Nursery System, Got Nature? – Purdue Extension-Forestry & Natural Resources (FNR)
Designing Hardwood Tree Plantings for Wildlife – The Education Store
ID That Tree – YouTube Playlist
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
A Template for Your Wildlife Habitat Management Plan, The Education Store
Managing Your Woods for White-Tailed Deer, The Education Store
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube channel
Nature of Teaching Unit 1: Animal Diversity and Tracking, The Education Store
Subscribe Purdue Extension – Forestry and Natural Resources YouTube Channel, Playlists include wildlife, Nature of Teaching, Moments in the Wild and much more.

Indiana Department of Natural Resources – Division of Fish & Wildlife

---

Purdue Extension’s annual report showcases the accomplishments, outcomes and activities that highlight the impact of Purdue Extension across Indiana. Extension specialists and educators provide educational programs and research-based knowledge to help families, individuals, and communities prosper and thrive.

The Purdue Extension – Forestry and Natural Resources specialists featured:

Private Woodland Owners Make Decisions and Take Actions to Improve Acreage Value – project specialist include Lenny Farlee, Ron Rathfon, Don Carlson, and Jarred Brooke, along with county extension educators Dave Osborne, and Phil Woolery. Indiana has 20% forest lands, most privately owned. Forests are important habitats for wildlife and provide environmental and social benefits. Purdue Extension offers Forest Management for the Private Woodland Owner, in-person and virtually. The in-person program has eight 2.75-hour evening sessions and two Saturday three-hour field day tours. Purdue Extension and local forestry and natural resource professionals provide presentations and direct activities. Participants receive a tree measuring stick and a flash drive containing more than 100 publications and resources.

Participant forest management knowledge improved after the program. More than 90% found it useful for making decisions, and 80% plan to take actions in the next year. A participant said, “This course provided exactly the information I needed to understand the DNR forester’s report on my classified forest and to act on it. It will also help form a land management plan of my own (beyond what the forester provided), find programs to help manage and expand the forest, and earn a little money from the property in future years.”

Furniture Production Addresses Workforce Development and Rebuilds Lives in Indiana – project specialist include Dr. Eva Haviarova and Dr. Henry Quesada. Most U.S. school furniture is made overseas and from nonrenewable materials (steel, plastic, and composite). Increasingly, the product sustainability, the circular economy, and the benefits of natural materials are being shown to be important in learning environments.

To create a new market for low-value hardwoods, urban woods, and plantation resources by designing and producing innovative products, including wooden school furniture, Purdue’s Wood Research Lab has tested all strength and environmental attributes. At the same time, Purdue Extension is focusing on workforce development for Indiana’s wood products industry. An approach is to provide potential employment and entrepreneurial opportunities to residents with troubled pasts, underprivileged workers, and those needing a second chance in life by partnering with Purposeful Design, the Forest Service, Indiana Hardwood Lumbermen’s Association, Urban Forest Products and other industry players to train workers in furniture production and qualify for future work.

To view full report visit: Purdue Extension Showcase.
To learn more about Purdue Extension visit: About Us.
For all Purdue Extension – Forestry and Natural Resources publications, videos, webinars and initiatives view: Purdue Extension – Forestry and Natural Resources.

Resources:
A Woodland Management Moment, Playlist, Purdue Extension – Forestry and Natural Resources Youtube Channel
Invasive Species, Playlist
Woodland Stewardship for Landowners, Playlist
Invasive Plant Species Identification, Video
Invasive plants: impact on environment and people, The Education Store, Purdue Extension resource center
Investing in Indiana Woodlands, The Education Store
Woodland Invaders, Got Nature? Blog
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
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR Youtube Channel
Forest Improvement Handbook, The Education Store
Joint Design Manual for Furniture Frames Constructed of Plywood and Oriented Strand Board, The Education Store
The Shrinking and Swelling of Wood and Its Effect on Furniture, The Education Store
Performance Test Method for Intensive Use Chairs – FNEW 83-269: A Description of the Test Method with Drawings​, The Education Store
How Baby Bear’s Chair Was Made, The Education Store

Purdue Extension

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

---

In this edition of ID That Tree, Purdue Extension forester Lenny Farlee takes us through the different characteristics of Hoptree, a relatively common shrub here in Indiana. This is a unique native plant with three-part leaves and hop-like seed pods. Also called Wafer Ash due to its distinctive wafer-shaped seeds, this shrub can often be confused with Poison Ivy or Bladdernut, so be sure to pay attention to key differences in the video. Features include trifoliate leaves and the temperate areas in which it grows.

 

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

Resources:
ID That Tree: Firs and Spruces, Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
ID That Tree – Jack Pine, Scotch Pine, Red Pine, Virginia Pine, Eastern White Pine, Video Playlist, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
Beat Back Borers Attacking Pines and Other Cone Bearing Trees, Purdue Landscape Report
Tree Diseases: White Pine Decline in Indiana, The Education Store, Purdue Extension Resource Center
Purdue Arboretum Explorer
Conservation Tree Planting: Steps to Success, Purdue Extension – FNR YouTube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
Woodland Stewardship for Landowners, Playlist, Purdue Extension – FNR YouTube Channel
Indiana Department of Natural Resources: Invasive Species
Indiana Invasive Species Council
Cooperative Invasive Species Management Area (CISMA)
Report Invasive, Purdue Extension
Episode 11 – Exploring the challenges of Invasive Species, Habitat University-Natural Resource University
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
Native Trees of the Midwest, The Education Store
Professional Forester, Indiana Forestry Woodland Owners Association
Forest Improvement Handbook, The Education Store
Find an Arborist, International Society of Arboriculture

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

---

“Right now, we’re seeing a mix of fall coming in and shifting temperatures, which is causing trees to respond. This back-and-forth hot weather is creating some color changes related to drought and stress. This can be expressed as brown color where leaves are starting to wilt and look a little crunchy from exposure to heat and drought stress,” McCallister explains.

Devyn Raver, Media Relations and Content Development Specialist
Purdue Forestry & Natural Resources

Ben McCallister, Urban Forestry Specialist
Purdue Forestry & Natural Resources

---

Question: We have a large 60+ foot mulberry tree in our backyard that is located by our pond. This is the first year I have seen these dark streaks on the bark of the tree. Should I have concerns?

Answer: From the photos, it looks like wet wood/slime flux is affecting your tree. It is a bacterial infection on trees and in most cases is not a serious issue, but unfortunately, there is nothing to be done about it. Many years ago they used to drill holes to try and allow gases and liquids drain from an area with the slime flux but through research and experience this practice is not recommended.

The Purdue Landscape Report titled Slime Flux of Trees shares more about this disease:
Slime flux (also known as wet wood) is a dark, foul-smelling and unsightly seepage of sap from tree trunks. The disease is not usually a serious problem but the appearance can be alarming. Slime flux is caused by common surface-inhabiting bacteria or yeast fungi that enter the trunk through wounds associated with improper pruning, stem breakage, injections, cracks from freeze injury or weak limb crotches. The bacteria and yeast may live on sap nutrients within injured trees for many years without any outward evidence.

Symptoms
The main symptom is the appearance of the dark sap oozing on the trunk exterior which happens when gasses produced by growth of the bacteria and yeast cause the internal pressure of the sap to become high enough to force the sap out through cracks in the bark. The dark streaks usually turn light gray or white upon drying. Oozing sap may be frothy and white at the point of exit. Airborne bacteria, yeasts, and fungi often colonize the wet oozing material, which ferments and releases a foul odor. Slime flux may delay wound healing (callus formation).

For prevention and other resources view: Slime Flux of Trees.

Resources
Purdue Landscape Report
Find an Arborist video, Trees are Good-International Society of Arboriculture (ISA)
Tree Pruning Essentials, Publication & Video, The Education Store, Purdue Extension resource center
Tree Pruning: What Do Trees Think?, The Education Store
Tree Installation Process and Practices, The Education Store
Tree Pruning for the Landscape, Webinar, Purdue Extension – Forestry and Natural Resources YouTube channel
Tree Wounds and Healing
Why Is My Tree Dying?, The Education Store
Tree Risk Management, The Education Store
What Are Invasive Species and Why Should I Care?, Got Nature? Blog Post, Purdue Extension – FNR
Purdue Plant & Pest Diagnositc Lab (PPDL)
Subscribe – Purdue Extension-FNR YouTube Channel

Ben McCallister, Urban Forestry Specialist
Purdue Forestry & Natural Resources

---

Morning AgClips — Nestled within the cool, flowing waters of Indiana’s Blue River, the elusive hellbender thrives under big, flat rocks, seeking refuge from predators and finding the perfect conditions to lay their eggs. But in recent years, they have become increasingly difficult to find.

Morning AgClips interviews Purdue hellbender team for details regarding Farmers Helping Hellbenders Project, aimed at restoring Indiana’s endangered hellbender salamander population by improving water quality in the Blue River-Sinking watershed. Learn more about this initiative by hearing directly from the people involved, with the two overarching goals being about improving hellbender habitat and also enhancing local farming operations. Particularly, the project engages farmers in adopting sustainable practices as well, while strengthening conservation efforts for hellbenders.

Hellbenders used to have a much larger range, occurring in most of southeast Indiana’s tributaries to the Ohio River and in the Wabash River. Sadly, its population has dropped drastically due to modification of stream habitats including the accumulation of sediment, agricultural and industrial pollution, warming waters and the channelization of streams and rivers. Because of their decline, these endangered ancient amphibians, with their large, unique flat bodies, have become the focus of an ambitious conservation effort led by Purdue University.

“The significance of the hellbender and its conservation extends beyond the species itself,” Purdue Extension Wildlife Specialist, Nick Burgmeier explains. “Hellbenders are an indicator species; their presence reflects the health of the water quality. Historically common and a top predator in streams, their decline has ecological repercussions, particularly on crayfish populations, which can disrupt food webs.”

Read more on the Morning AgClips website at Rebuilding Indiana’s Hellbender Habitat.

Resources:
Farmers Helping Hellbenders RCPP Program Accepting Applications, Purdue Forestry and Natural Resources News
USDA Awards Farmers Helping Hellbenders Project in Funding, Purdue Extension – Forestry and Natural Resources (FNR) Got Nature? Blog
Improving Water Quality by Protecting Sinkholes on Your Property, Purdue Extension – FNR YouTube Channel
Improving Water Quality Around Your Farm video, Purdue Extension – FNR YouTube Channel
Adaptations for Aquatic Amphibians, The Education Store, Purdue Extension’s resource center
Hellbenders Rock! Nature of Teaching Lesson Plan, The Education Store
Nature of Teaching – Hellbenders Rock Sneak Peek video, Purdue Extension – FNR YouTube Channel
Nature of Teaching – Hellbenders Rock webinar video, Purdue Extension – FNR YouTube Channel
Learn about hellbenders and take a tour of Purdue’s hellbender rearing facility video, Purdue Extension – FNR YouTube Channel
Learn about the hellbender work at Mesker Park Zoo video, Purdue FNR Facebook
Learn about hellbender work at The Wilds video, Purdue FNR Facebook
Dr. Rod Williams’ 2017 TEDx Talk Help the Hellbenders video, Purdue Extension – FNR YouTube Channel
A Moment in the Wild – Hellbender Hides video, Purdue Extension – FNR YouTube Channel
A Moment in the Wild – Hellbender Release video , Purdue Extension – FNR YouTube Channel

Morning AgClips

---