Got Nature? Blog

The classic and trusted book “Fifty Common Trees of Indiana” by T.E. Shaw was published in 1956 as a user-friendly guide to local species.  Nearly 70 years later, the publication has been updated through a joint effort by the Purdue Department of Forestry and Natural Resources, Indiana 4-H, and the Indiana Department of Natural Resources, and reintroduced as “An Introduction to Trees of Indiana.”

The full publication is available for download for $7 in the Purdue Extension Education Store. The field guide helps identify common Indiana woodlot trees.

Each week, the Intro to Trees of Indiana web series will offer a sneak peek at one species from the book, paired with an ID That Tree video from Purdue Extension forester Lenny Farlee to help visualize each species as it stands in the woods. Threats to species health as well as also insight into the wood provided by the species, will be provided through additional resources as well as the Hardwoods of the Central Midwest exhibit of the Purdue Arboretum, if available.

This week, we introduce the black gum or Nyssa sylvatica.

The black gum, also known as bee gum, sour gum, black tupelo or pepperidge, has glossy, green oblong leaves broader at the tip that at the base. The alternately held leaves are often found in clusters at the tips of the branches, which grow out of the trunk at nearly 90-degree angles. The bark, which can range from light gray to a dark grayish brown, resembles alligator hide or in some case features long running ridges.

Black gum produces a small dark-blue berry-like fruit which ripen in late September and are favored by birds. In the fall, this species also puts on quite a show with its striking red/maroon leaves, which begin to change in mid-September.

Black gum is a medium-sized tree that is found on moist, well-drained soils, but also grows on dry upland sites. This species can be found from southern Maine to nearly the tip of Florida. It also ranges from east Texas north across Missouri, southern Illinois, nearly all of Indiana and to central Michigan and back east, except in the lower Mississippi River bottom.

For full article with additional photos view: Intro to Trees of Indiana: Black Gum

Other Resources:
Black Gum in the Hardwood Lumber and Veneer Series
Black Gum/Tupelo, Native Trees of Indiana River Walk, Purdue Fort Wayne
Black Gum & Tupelo, Purdue Arboretum Explorer
Fifty Common Trees of Indiana
An Introduction to Trees of Indiana
Native Trees of the Midwest
Shrubs and Woody Vines of Indiana and the Midwest
ID That Tree YouTube playlist
Woodland Management Moment YouTube playlist
Investing in Indiana Woodlands
Forest Improvement Handbook

Wendy Mayer, FNR Communications Coordinator
Purdue University Department of Forestry and Natural Resources

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

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In this episode of A Moment in the Wild, Purdue extension wildlife technician Zach Truelock introduces you to the northern map turtle. This species is named for the fact that its shell resembles a topographic map. Learn more inside.

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:
Turtles of Indiana, The Education Store
Forestry Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
Appreciating Reptiles and Amphibians in Nature, The Education Store
Indiana Amphibian and Reptile ID Package (4 softcover books), The Education Store
When Juvenile Snakes Come Calling, FNR Got Nature? blog
A Moment in the Wild, Playlist, Purdue Extension – Forestry and Natural Resources
A Moment in the Wild: Black Racer, Video, Purdue Extension – Forestry and Natural Resources YouTube channel
A Moment in the Wild: Eastern Kingsnake, Purdue Extension – FNR Video
A Moment in the Wild: Eastern Hognose, Purdue Extension – FNR Video
Ask An Expert, Purdue Extension – FNR Playlist

Zach Truelock, Hellbender Technician
Purdue Forestry and Natural Resources

Rod Williams, Assistant Provost for Engagement/Professor of Wildlife Science
Purdue University Department of Forestry and Natural Resources

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The classic and trusted book “Fifty Common Trees of Indiana” by T.E. Shaw was published in 1956 as a user-friendly guide to local species.  Nearly 70 years later, the publication has been updated through a joint effort by the Purdue Department of Forestry and Natural Resources, Indiana 4-H, and the Indiana Department of Natural Resources, and reintroduced as “An Introduction to Trees of Indiana.”

The full publication is available for download for $7 in the Purdue Extension Education Store. The field guide helps identify common Indiana woodlot trees.

Each week, the Intro to Trees of Indiana web series will offer a sneak peek at one species from the book, paired with an ID That Tree video from Purdue Extension forester Lenny Farlee to help visualize each species as it stands in the woods. Threats to species health as well as also insight into the wood provided by the species, will be provided through additional resources as well as the Hardwoods of the Central Midwest exhibit of the Purdue Arboretum, if available.

This week, we introduce the American elm or Ulmus americana.

The American elm, also called white elm, is easily identified by its simple doubly-serrated oval leaves, which feature a large tooth with small teeth like edges on top that. The leaves are held on fine twigs, which turn a medium brown over the summer. The bark of the American elm is spongy, with strong crisscrossing ridges. When sliced open, these ridges show distinct reddish brown and light tan/white colored layers inside the bark. This is different from the dark brown and reddish-brown layers found in the bark of red elm or slippery elm.

The American elm features an open, spreading crown and drooping limbs that form a vase shape.

American elm is a common tree in many riparian forest areas or moist soil forest areas. The species used to be a common street tree in Indiana, but that number has dwindled due to Dutch elm disease, a fungal diseased which ravaged the species in the second half of the 20^th century.

American elm can be found throughout the northeastern United States south to central Florida and west to central Texas and north to southeastern Saskatchewan.

For full article with additional photos view: Intro to Trees of Indiana: American Elm

Resources:
Elm, The Education Store, Purdue Extension resource center
Slippery Elm, Native Trees of Indiana River Walk, Purdue – Fort Wayne
Top 5 List for Tree Selection and Planting, Purdue Extension-Forestry & Natural Resources (FNR) Got Nature? Blog
Fifty Common Trees of Indiana
An Introduction to Trees of Indiana
Native Trees of the Midwest, The Education Store, Purdue Extension’s resource center
Shrubs and Woody Vines of Indiana and the Midwest, The Education Store
ID That Tree, Purdue Extension-FNR’s YouTube playlist
Woodland Management Moment , Purdue Extension-FNR’s YouTube playlist
Investing in Indiana Woodlands, The Education Store
Forest Improvement Handbook, The Education Store

Wendy Mayer, FNR Communications Coordinator
Purdue University Department of Forestry and Natural Resources

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

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Purdue Landscape Report, Why are the Japanese beetles running late this year?: Nothing heralds summer like the hum of Japanese beetles ravenously descending on a flower garden. Cool weather this spring has slowed emergence of adults from the soil. Heavy spring rains early followed by relatively drier weather in late June, may have trapped adult Japanese beetles under a crusty layer of hardened soil. Due to their large numbers in many parts of Indiana last year, they are very likely just waiting for a good rain to soften the surface, so they can dig themselves into the light of day and on to your flowers. So, if we get a little more rain by the time this article comes out, we are likely to be awash in adult beetles.

Weather is only part of what makes Japanese beetles predictably unpredictable. Beneficial organisms including fungi, microsporidia, and parasitic wasps also act different life stages of Japanese beetles. Japanese beetles have been the target of several national programs to release these beneficial organisms to reduce beetle populations. Favorable conditions for these beneficials can help reduce the local abundance of grubs and beetles.

Although killing grubs will reduce the number of beetles, the small size of lawns and the long flight range of makes it unlikely for your grub control program to reduce defoliation.  In experiments conducted in my lab over 20 years ago, we found adult beetles can easily fly a kilometer (0.66 miles) in a single day.  With adults living for several weeks, it is easy to image beetles traveling long distances from untreated lawns to plants on your property.

Life cycle of Japanese beetles: As the weather warms in the spring larvae (aka white grubs) move closer to the surface and begin feeding on turf roots.  In May they enter a pupal stage and stop feeding.  In June they typically emerge from the soil as adults.  Adults fly in summer when they feed on flowers and leaves.   In late July and early August adults lay eggs into the turfgrass.  White grubs hatch from eggs and feed on the roots until frost when the larvae begin dig deeper into the soil to avoid killing temperatures.

To find out what you can do about Japanese beetles and view photos view: Why are the Japanese beetles running late this year?

Resources:
Report Invasive
Invasive Species, Got Nature?
Invasive Species, Playlist, Purdue Extension – FNR YouTube Channel
Indiana Department of Entomology and Plant Pathology
Spotted lanternfly: Everything You Need to Know in 30 Minutes, Video, Emerald Ash Borer University
Emerald Ash Borer, EAB Information Network
Invasive plants: impact on environment and people, The Education Store, Purdue Extension’s resource center
Woodland Management Moment: Invasive Species Control Process, Video, Purdue Extension – Forestry and Natural Resources (FNR) YouTube Channel
What are invasive species and why should I care?, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources
Pest Management, The Education Store

Cliff Sadof, Professor Entomology/Extension Fellow
Purdue Entomology

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In this Moment in the Wild video, Purdue Extension wildlife technician Zach Truelock introduces you to the common water snake. He shows you how to tell it apart from the venomous cottonmouth and also shares identification and breeding information.

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
Snakes of Indiana, The Education Store, Purdue Extension resource center
Snakes and Lizards of Indiana, The Education Store
Snakes of Indiana, The Education Store
Snakes of the Central and Northeastern United States, The Education Store
Forestry Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
Appreciating Reptiles and Amphibians in Nature, The Education Store
Indiana Amphibian and Reptile ID Package (4 softcover books), The Education Store
When Juvenile Snakes Come Calling, FNR Got Nature? blog
A Moment in the Wild, Playlist, Purdue Extension – Forestry and Natural Resources
A Moment in the Wild: Black Racer, Video, Purdue Extension – Forestry and Natural Resources YouTube channel
A Moment in the Wild: Eastern Kingsnake, Purdue Extension – FNR Video
A Moment in the Wild: Eastern Hognose, Purdue Extension – FNR Video
Ask An Expert, Purdue Extension – FNR Playlist

Zach Truelock, Hellbender Technician
Purdue Forestry and Natural Resources

Rod Williams, Assistant Provost for Engagement/Professor of Wildlife Science
Purdue University Department of Forestry and Natural Resources

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Wild Bulletin, Indiana DNR Fish & Wildlife email newsletter, Help stop the spread of aquatic invasive species: DNR and several Indiana conservation organizations gathered to take part in the fourth annual Great Lakes Aquatic Invasive Species Landing Blitz from June 24th to July 10th. Staff and volunteers were at state parks helping boaters, anglers and other water enthusiasts check their watercraft and other equipment for aquatic invasive species, along with educating them on preventive measures.

Aquatic invasive species are plants, animals, and other organisms that are not native to Indiana waters and have the potential to cause harm. These species are concerning because they outcompete native species, threaten human health, change and degrade the ecosystem, and/or require intense maintenance and monitoring.

Most invasive species find their way to Indiana through human behaviors. Modern transportation brings goods including invasive species from all around the world in a matter of hours or days. Some exotic pets or plants used in aquariums or water gardens escape into the wild and if they are adapted to Indiana’s conditions, they can become invasive. Boats and ships moving from waterbody to waterbody can spread invasives. Some invasives were brought to the U.S. intentionally as bio-controls for other invasives; others were introduced as game or food species.

Invasive species can be very expensive or impossible to control. For instance, Indiana spends an estimated $1 million per year in public waters to chemically control Eurasian watermilfoil, an invasive water plant that can shade out native species and interferes with boating and fishing. The damage to sport fisheries and commercial resources from AIS can be serious.

To learn how to stop “hitchhikers” and to learn more about aquatic invasive species view IN DNR: Aquatic Invasive Species.

Resources:
Invasive Mussels, IN DNR Fish and Wildlife
Aquatic Invasive Species in the Great Lakes: The Quagga Mussel, Purdue Extension – Forestry & Natural Resources (FNR) Got Nature? Blog
Aquatic Invaders in the Marketplace, Illinois-Indiana Sea Grant (IISG)
Invasive Species, Playlist, Purdue Extension – FNR YouTube Channel
What are invasive species and why should I care?, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources
Report Invasive Species, Purdue Invasive Species
The GLEDN Phone App – Great Lakes Early Detection Network
EDDMaps – Early Detection and Distribution Mapping System
Indiana Department of Natural Resources: Invasive Species
Indiana Invasive Species Council
Cooperative Invasive Species Management Area (CISMA)
Great Lakes Sea Grant Network (GLERL), NOAA – Great Lakes Environmental Research Laboratory
A Field Guide to Fish Invaders of the Great Lake Regions, Illinois-Indiana Sea Grant (IISG)
Purdue Researchers Get to the Bottom of Another Quagga Mussel Impact, Illinois-Indiana Sea Grant (IISG)
Invasive plants: Impact on Environment and People, The Education Store, Purdue Extension’s resource center
Protect Your Waters, U.S. Fish and Wildlife Service & U.S. Coast Guard
Nongame and Endangered Wildlife, Indiana Department of Natural Resources

Indiana Department of Natural Resources (IN DNR) – Fish and Wildlife 

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Illinois-Indiana Sea Grant Newsroom: Many Great Lakes communities that have carried the burden of legacy pollution for decades have an opportunity for a new lease on life when local waterways are finally cleaned up. A new video series features five cities along waterways deemed Areas of Concern (AOCs) that are in various stages of the cleanup process and are experiencing revitalization.

Historically, the Great Lakes region was a center of industry—steel, leather and lumber, to name a few—that eventually shut down or moved elsewhere as economies and priorities changed. Left behind in these waters was a soup of contamination, leaving degraded waterways and depressed communities.

In the United States and Canada, dozens of sites were identified as AOCs in the Great Lakes Water Quality Agreement, and over the years, many have undergone remediation.

The U.S. EPA Great Lakes National Program Office (GLNPO) has provided leadership throughout the cleanup process, which involves dredging or capping contaminated sediment. Even before the cleanup and subsequent restoration, local agencies and organizations have a seat at the table to discuss processes and priorities.

Funding is often a partnership between the federal government, in the form of the Great Lakes Legacy Act (now through the Great Lakes Restoration Initiative), and state, regional and local stakeholders.

The videos feature five cities—Duluth, Minnesota; Muskegon, Michigan; Sheboygan, Wisconsin; Ashtabula, Ohio; and Buffalo, New York—that have had some or all of their contaminated sites cleaned up and ecosystems restored. Local government representatives, business owners and residents share the impact of this work on recreation, tourism, economic development, housing and quality of life in the area.

For full article and videos > > >

About IISG: These are trying times for the environment. Climate change and other concerns such as population growth, aquatic invasive species, contaminated waters, and loss of natural habitat, the southern Lake Michigan region faces many challenges. Illinois-Indiana Sea Grant (IISG), with its unique mandate to bring the latest science to those who can best use the information, serves a critical role in empowering people to solve problems in sustainable ways. The program is funded through National Oceanic and Atmospheric Administration (NOAA), the University of Illinois and Purdue University, but IISG also works in partnerships with key organizations, institutions, and agencies in the region to reach more audiences and multiply opportunities for success. IISG brings together scientists, educators, policy makers, community decision makers, outreach specialists, business leaders, and the general public to work towards a healthy environment and economy.

 

Resources
Center For Great Lakes Literacy (CGLL), Website
Ask An Expert: Hot and Cold, Video, Purdue Extension – Forestry and Natural Resources YouTube channel
Informing the Development of the Great Lakes Region Decision Support System, The Education Store, Purdue Extension’s resource center
Urban Best Management & Low Impact Development Practices, The Education Store
Improving Water Quality Around Your Farm, The Education Store
New website: Eat Midwest Fish, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources (FNR)
Scientists bring the Great Lakes to students learning from home, Got Nature? Blog
Adaptations for Aquatic Amphibians Activity 2: Water Quality Sneak Peak, Purdue Nature of Teaching

Illinois-Indiana Sea Grant (IISG)

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MyDNR, Indiana’s Outdoor Newsletter-Help the DNR by Reporting a Mammal: Did you get something unusual on a trail camera and want to share it to help wildlife in Indiana? DNR has launched a new Report a Mammal page. We are asking for the public’s help to submit sightings to the new online report form. Report a Mammal includes animals like armadillos, badgers, gray foxes, flying squirrels, star-nosed moles, ground squirrels, weasels, and more.

Indiana DNR offers a new, easier way to submit a report for the mammal, no password required. The report form also includes species at risk of declining and Species of Greatest Conservation Need, along with an area to submit a photo or brief video to help document the observation. Media of the animal observed would be most useful, though DNR biologists can examine evidence left by the mammal too (tracks, scat, or other signs). Completion of this form is voluntary. Data submitted may be shared within DNR and partners with the discretion of DNR staff. Personal information will be used to process your observation and may also be used for participation in surveys and other secondary purposes. DNR staff will only respond to reports if more information is needed.

To view what to report and for identification tips see: Full article > > >

Resources:
A Template for Your Wildlife Habitat Management Plan, The Education Store, Purdue Extension resource center
Wildlife Habitat Hint, Purdue Extension – Forestry & Natural Resources (FNR) YouTube Playlist
Orphaned Wildlife, Got Nature? blog
Orphaned & Injured Animals, Indiana Department of Natural Resources (IN DNR)
Purdue Extension – FNR: Ask An Expert, Video, Purdue Extension –  FNR YouTube channel
Nature of Teaching, Website
A Woodland Management Moment, Playlist, Purdue Extension – Forestry and Natural Resources YouTube channel

Indiana Department of Natural Resources (IN DNR) – Fish and Wildlife 

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Documenting an occurrence of a new wildlife species for a region is usually good news. Unfortunately, with the number of non-native species that seemingly pop up, this is not always the case. Extension Specialists across the U.S. often receive inquiries about identifying pictures of wildlife. We were recently contacted by an individual to identify the “white frog” pictured below. It was clearly not a native species from Indiana but rather a Cuban treefrog.

The Cuban treefrog (Osteopilus septentrionalis) is native to Cuba, the Cayman Islands and the Bahamas. These treefrogs were accidentally brought to Florida in the 1920s, probably as hitchhikers in cargo containers on ships. Cuban treefrogs are considered invasive in Florida (and elsewhere outside their native range) because they are likely to harm our native ecosystems and cause a lot of problems for humans. They are voracious predators and have likely caused declines of native treefrogs in many suburban areas of peninsular Florida. They get into people’s homes and sometimes end up in toilets. And they are even known to invade electrical equipment and have caused power outages in Florida.

Cuban treefrogs are much larger than Indiana’s native treefrogs with adults typically reaching lengths of 2 to 3 inches and large females may grow to about 5 inches. Body color is highly variable, ranging from whitish to gray, green, or brown, and may be marked with irregular, dark stripes or blotches that fade when the frog changes color. Their skin is warty (some warts quite prominent) and have large “bug eyes.”. The armpits and groin may be washed with yellow.

Native gray treefrogs, which occur throughout Indiana, look a lot like Cuban treefrogs. However, gray treefrogs have granular skin and normally do not have individual warts that stand out from the rest of the bumpy skin on their back. Gray treefrogs also have a light-colored blotch directly below each eye.

How did the Cuban treefrog get to Indiana? That remains unclear, and this a very rare event for the Hoosier State. We only know of two other times Cuban treefrogs have shown up here.  Both were discovered in ornamental plants shipped to Indiana from Florida. Cuban treefrogs spread by hitchhiking on ornamental plants, motorized vehicles, boats, etc. and it is also possible that this frog was someone’s pet that was either intentionally or accidently released. Cuban treefrogs are adapted to warm environments and it gets too cold in Indiana for this invasive frog to live here.

What can you do to help?
It is import to document the locations of Cuban treefrogs outside of Florida in the US and Canada. If you see a Cuban treefrog, or suspect you have seen one, outside of peninsular Florida please email Dr. Steve A. Johnson at tadpole@ufl.edu. Include your name, date you saw the frog, where you saw it (state, county, city, street address), and also attach a digital image so Dr. Johnson can positively identify the frog. It is also important to report Cuban treefrog sightings at EDDMapS, the online mapping system for invasive species in the US. Visit https://www.eddmaps.org/ and click the “Report Sightings” tab. Thank you for being a community scientist!

Cuban Treefrog Pictures (Non-native species)

Gray Treefrog Pictures (native species)

Resources
The Cuban Treefrog (Osteopilus septentrionalis), University of  Florida- Institute of Food and Ag Sciences (IFAS) Extension
Invasive Cuban Treefrogs, Department of Wildlife Ecology & Conversation, University of Florida
Sounds of Frogs and Toads of Indiana, Purdue Extension – Forestry and Natural Resources
Ask An Expert: Anurans (Frogs and Toads), Got Nature? Blog, Purdue Extension – Forestry and Natural Resources
Frogs and Toads of Indiana, The Education Store, Purdue Extension resource center
A Moment in the Wild, Playlist, Purdue Extension – Forestry and Natural Resources
Forestry Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
Appreciating Reptiles and Amphibians in Nature, The Education Store
Nature of Teaching website and YouTube Playlist, Purdue Extension

Steve Johnson, Associate Professor
Dept. of Wildlife Ecology & Conservation, University of Florida

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

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Starting trees from seed requires knowing the germination requirements for the species you wish to grow. Most native tree seeds require treatments to break seed dormancy before the seed will germinate. These are done naturally by weather cycles, moisture, sunlight and wildlife in the forest environment. When we collect seeds, we will have to simulate these natural events to germinate the seeds successfully.

The Woody Plant Seed Manual, a U.S. Forest Service publication, gives detailed germination and nursery culture instructions by genus and species of trees. With over 450 seeds of woody plants in the United States, this manual continues to be popular both in this country and beyond. Seed data includes approximately 800 species, varieties, and sub-species in 188 genera, considerable more than the 420 species and 140 genera in this edition.

View this general germination guide for some common tree species.

Resources:
Frost Seeding to Establish Wildlife Food Plots & Native Grass and Forb Plantings – YouTube Video
Planting Hardwood Seedlings – The Education Store
Ordering Seedlings from the State Forest Nursery System, Got Nature? – Purdue Extension-FNR
Instructions for Ordering Tree Seedlings – Indiana DNR Division of Forestry
Importance of Hardwood Tree Planting – The Education Store, Purdue Extension Resource Center
Forest Improvement Handbook – The Education Store
Designing Hardwood Tree Plantings for Wildlife – The Education Store
National Nursery and Seed Directory  – USDA Forest Service
Web Soil Survey – USDA Natural Resources Conservation Service
ID That Tree – YouTube Playlist

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

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

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