Got Nature? Blog

Purdue Landscape Report: Is it too early (and too hot outside) to think about Christmas trees? Maybe, but many of the pests that attack them are active at this time of year. In this week’s IDNR Entomology review, Jared Spokowsky shared damage he observed on pine from white pine weevil and Zimmerman pine moth, which got me thinking about Christmas tree season.

One of my favorite winter traditions is selecting a Christmas tree to bring home and decorate. Whether you are a Christmas tree grower or simply have conifers in your landscape, there are several pests to keep an eye out for as summer comes to an end. Here is a brief review of a few pests that threaten our Christmas (tree) spirit.

Zimmerman pine moth (ZPM)

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Have you been hearing more annoying buzzing around your ears than normal? Maybe you’ve got an itch you just can’t seem to scratch. There’s a good explanation for that.

Indiana saw record amounts of rainfall in August, resulting in flooding across the state. These rain events and flooding, along with a warm start to September, have created the perfect storm of conditions for a large boom in mosquito populations. Although flooding itself may temporarily wash away some mosquito larvae, the standing water left behind as floodwaters recede can provide abundant new breeding habitat. Floodwater is one of several important mosquito breeding environments in Indiana, along with woodland pools, slow-moving streams, ditches, marshes and the edges of lakes.

Indiana is home to more than 50 species of mosquitoes, and different species use different types of water for reproduction. Some mosquitoes are associated with floodwater and other natural habitats, while others prefer smaller, humanmade containers. Following a period of heavy rain, water can collect in old tires, clogged gutters, rain barrels, birdbaths, catch basins, tree cavities and other objects around homes. It’s important to empty these water sources to reduce mosquito populations around the home.

The mosquito life cycle also helps explain why populations can appear to increase rapidly after a major rain event. Female mosquitoes can lay as many as 400 eggs after having a blood meal. Depending on the species and environmental conditions, eggs can hatch in less than three days. The larvae, commonly called “wrigglers,” take roughly 7-10 days to develop into pupae. After an additional 2-3 days, the next round of adult mosquitoes emerges. The water remaining after all of the August storms will produce many new generations of mosquitoes in a relatively short period of time. You may have already noticed an influx in these pesky insects!

The increase in mosquitoes is not just an outdoor annoyance. Several mosquito-borne viruses are concerns for Hoosiers, including West Nile virus, St. Louis encephalitis, La Crosse fever, Eastern equine encephalitis and Western equine encephalitis. Wild birds can serve as reservoirs for some of these viruses. Mosquitoes feeding on infected birds may subsequently transmit viruses when they feed on other animals or people. The Indiana Board of Health monitors for vector borne diseases, and has identified mosquito pools that are positive for West Nile Virus across the state.

For Indiana residents dealing with the aftermath of heavy August rainfall, reducing standing water around homes is an important first step. Removing or disposing of objects that collect water, regularly changing water in birdbaths and unused wading pools, keeping rain gutters unclogged, draining stagnant pools and puddles, and covering stored water such as rain barrels and cisterns are all great preventative measures around your home. Eliminating these breeding sites interrupts the mosquito life cycle before adults emerge.

Homeowners can also reduce exposure to adult mosquitoes. Wearing long-sleeved shirts and long pants, particularly during periods of high mosquito activity, can greatly reduce the chance of mosquito bites. Mosquitoes are often most active around dawn and dusk, so limiting outdoor exposure during those periods or staying in screened areas can reduce the chance of being bitten. EPA-registered mosquito repellents can provide additional protection.

As Indiana moves beyond August, mosquito numbers may remain elevated wherever standing water persists. Removing that water, improving drainage and protecting against bites can help Hoosiers reduce mosquito populations and limit their potential impact on people and animals.

Resources:
Indiana Department of Health
Mosquitoes, Purdue Extension Entomology
Mosquitoes In and Around the Home, The Education Store, Purdue Extension’s resource center
Community-Wide Mosquito Management, Purdue Extension – Entomology
Mosquitoes, Ticks and Other Arthropods, CDC Yellow Book, U.S. Centers for Disease Control and Prevention
Mosquitoes and ticks – little pests carry big risks – Got Nature? Blog, Purdue Extension – Forestry and Natural Resources (FNR)
Mosquitoes carrying Zika virus can be controlled and avoided – Got Nature? Blog, Purdue Extension – FNR
Field Season Upon Us! Be Prepared – Got Nature? Blog, Purdue Extension – FNR
Excess Rain and Pond Integrity – Got Nature? Blog, Purdue Extension – FNR
Health & Wellness Lessons, The Nature of Teaching
Subscribe – Purdue Extension-FNR YouTube Channel

Tabatha (Tabby) Flinn, Senior Regional Educator
Agriculture and Natural Resources, Purdue Extension

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In the past few years, prescribed fire has caught on in Indiana. Government agencies and land trusts have increasingly used it as a tool to create wildlife habitat, manage for rare and endangered species, and promote ecosystem health. On these properties, fire has been reintroduced to landscapes it shaped for thousands of years.

However, while fire is being used to improve our public lands, 96% of Indiana is privately owned. If fire is truly going to spread, private landowners need to start burning as well. One means to that end is the formation of Prescribed Burn Associations.

Prescribed Burn Associations (PBAs for short) are, at their most basic level, groups of people who burn together. By burning as a group, members of the PBA can share expertise, equipment, and labor to get more fire on the landscape. They can also pursue training and funding opportunities that may not be readily available to individuals. In Missouri, the formation of 18 PBAs has led to prescribed fire on more than 11,000 acres across the state in the past 10 years. The model for success is already out there.

Indiana is just getting into the PBA game. One PBA based in Daviess County already exists, and interest meetings for two more in Brown and Harrison are on the calendar for fall of 2026. More meetings are in the works across other parts of Indiana.

So, how does one get involved with a PBA? If you happen to be in one of the counties mentioned above, it’s as simple as contacting the leader or attending a meeting. Fire experience is not a requirement, only enthusiasm and a willingness to learn. Members don’t have to be landowners either – many PBAs include professionals, students, and folks who are simply interested in learning new land management skills.

If there isn’t a PBA in your area, consider getting one started. Find a few other people who want to be involved, hold an interest meeting to share information and sign folks up, then elect a board. From there, the board guides the organization and helps create its rules, and the larger membership decides on a coverage area and name. Then, all that’s left to do is inventory available equipment and expertise, line up some burns, and start getting good fire on the ground.

Still not sure how to start? That’s where we can help. If you are interested in starting or joining a PBA, you can fill out this PBA Interest Form, and we will reach out to help you get started.

With the formation of PBAs across the state, fire can be more broadly used as a management tool, benefiting the natural world and humans alike. For more information on PBAs, including formation tips and upcoming meetings, visit the Prescribed Burn Associations website.

Resources:
Indiana Prescribed Fire Council (INPFC)
Effective Firebreaks for Safe Use of Prescribed Fire, Got Nature? Blog, Purdue Extension – Forestry and Natural Resources (FNR)
Prescribed fire: 6 things to consider before you ignite, Got Nature? Blog, Purdue Extension – FNR
Getting Certified as an Indiana Certified Prescribed Burn Manager, Got Nature? Blog, Purdue Extension – FNR
FNR Ask The Expert: Prescribed Fire, Purdue Extension – FNR YouTube Channel
Hardwood Ecosystem Experiment: Prescribed Fire, Purdue Extension – FNR YouTube Channel
Wild Habitat Hint: Late Growing Season Prescribed Fire, Purdue Extension – FNR YouTube Channel
Wild Habitat Hint: Prescribed Fire Techniques – Backing Fire, Purdue Extension – FNR YouTube Channel
Wild Habitat Hint: Prescribed Fire Techniques – Flanking Fire, Purdue Extension – FNR YouTube Channel
Wild Habitat Hint: Prescribed Fire Techniques – Strip Head Fire, Purdue Extension – FNR YouTube Channel
Wild Habitat Hint: Prescribed Fire Techniques – Point Source Fire, Purdue Extension – FNR YouTube Channel
Wild Habitat Hint: Prescribed Fire Techniques – Ring Fire, Purdue Extension – FNR YouTube Channel

Danielle Paige Howard, Extension Prescribed Fire Specialist
Purdue University Department of Forestry and Natural Resources

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Jarred Brooke, Extension wildlife specialist, was honored with a Career Achievement Award at the Fire in Eastern Oak Forests Conference in June.

In addition to his extension work with wildlife, Brooke has been deeply involved in prescribed fire, serving as chair of the Indiana Prescribed Fire Council since 2018, working to implement prescribed fire policy in Indiana, and organizing more than 30 Learn-N-Burn and Prescribed Fire field days and workshops that provide landowners and professionals with practical experience in fire safety, timing, and ecological benefits. Jarred has also co-instructed the undergraduate FNR-333 Applied Fire Ecology course since 2019. He was instrumental in securing funding from the Sam Shine Foundation to hire Danielle Howard, the recently hired Extension prescribed fire specialist.

Brooke also was one of three main instructors and organizers of the Indiana Land Stewardship Leadership Academy, which graduated its first class this spring. He was honored in 2021 with the Early Career Award from the Purdue Cooperative Extension Specialists’ Association and PK-12 Council’s Staff Excellence Award for his work with youth audiences, expanding their interest in and preparation for careers in natural resource sciences.

“It’s an honor to have been given the Career Achievement Award from the Fire in Eastern Oak Forests Conference,” Brooke said. “Since I don’t have enough gray hair for a career achievement award, we’ll just call it an early-career award. I have enjoyed all the prescribed fire work I’ve been able to do through my Extension role at Purdue, but this award would not have been possible without all the partners I work with on fire. From leading Learn-N-Burns and serving on the Indiana Prescribed Fire Council board to working

on prescribed fire policy in the Hoosier state, it’s been a collaborative journey – and I’m looking forward to more in the future! Special thanks to Allen Pursell for presenting me with the award.”

At the awards presentation, Pursell, director of forest programs for the Sam Shine Foundation, Inc., said:

“Jarred served as president of the Indiana Prescribed Fire Council from its inception in 2016 through 2025, and remains active. Jarred was known for great ideas, energy, and leadership skills. One of the board members told me that Jarred really held the council together, especially during Covid, when it would have been easy for it to wither.

“As part of his accomplishments there:

• He spearheaded getting the Indiana Prescribed Fire Council incorporated as a non-profit entity.
• He was the key person shepherding the entire process that resulted in the new Indiana Prescribed Fire Law. Many people were involved in key roles, but Jarred made it come together.
• More recently, Jarred identified funds so that Purdue University could hire a Prescribed Fire Extension Specialist who will help to form and support Prescribed Burn Associations, Support the Certified Prescribed Burn Manager program, and Conduct prescribed fire outreach to local communities.
  

  FNR students conduct a prescribed burn at the Celery Bog for their FNR 33350 class in West Lafayette, Ind. on Wednesday, Feb. 25, 2026. (Purdue University photo/Joshua Clark)

• In addition to these, Jarred has conducted many “learn and burn” courses for students and citizens who are interested in prescribed fire. He is a leader among his peers and an untiring advocate for prescribed fire in Indiana.

“For these accomplishments and many others, we are pleased to present Jarred Brooke with this career award.”

The Eastern Oak Forests Conference achievement awards are meant to recognize any significant contributions ranging from science, management, education and outreach, or training. Awards for the conference began during the 2019 conference playing and have ranged from one to six awardees per conference. Awardees are nominated by conference steering committee members.

To view this article along with other news and stories posted on the Purdue Forestry and Natural Resources website view: Jarred Brooke Receives Early Career Award for Prescribed Fire Work.

Resources:
Nature of Teaching, Purdue Agriculture
Natural of Teaching YouTube Channel
College of Agriculture PK-12 Council Outreach and Engagement Awards, Purdue Agriculture
National Wildlife Habitat Education Program (WHEP), Teaching Youth Valuable Skills
Learn How to Control Reed Canarygrass, Got Nature? Blog, Purdue Extension – FNR
FNR Ask The Expert: Prescribed Fire with Jarred Brooke and Mike Saunders, Purdue Extension – FNR Video
Brooke’s Prescribed Fire Videos Utilized in Global USFS Efforts, Purdue Extension – FNR Got Nature? Blog
Prescribed fire: 6 things to consider before you ignite, Got Nature? Blog, Purdue Extension – 4Forestry and Natural Resources
Wildlife Habitat Hint: Prescribed Fire Techniques – Backing Fire, Video, Purdue Extension – Forestry and Natural Resources YouTube channel
Indiana Prescribed Fire Council (IPFC)
Subscribe – Purdue Extension-FNR YouTube Channel, find natural resources, forestry, wildlife, urban forestry and much more.

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

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Indiana’s weather can shift quickly, from calm spring and summer mornings to severe thunderstorms, damaging winds and flash floods by afternoon. These sudden changes make it essential for individuals, families and communities to stay informed and prepared.

INdiana PREPared and the Extension Disaster Education Network (EDEN) have a wide range of resources and educational materials that can be used to help Extension professionals spread the word about preparing for and responding to severe spring and summer weather events.

Find a full collection of resources at these various webpages:

• Educator/Trainer Resources
• Spring and Summer Severe Weather Resources
• Tornado and Wind Damage Response and Recovery
• Flood Resources for Educators

Stock your Go-Bag!
We encourage everyone to be ready for severe weather events by preparing a Go-Bag of important supplies. Click the image on the right/below to access INPREP’s Go-Bag Checklist, and feel free to share with your local clients. Remember to take into account the needs of family members impacted by disabilities!

By incorporating these IN-PREPared materials into programs, outreach efforts and conversations with community members, we can make a meaningful difference in how our communities respond and recover. Together, we can ensure that Hoosiers have the knowledge, tools and confidence to face severe weather with greater safety and resilience.

Resources:
Purdue Extension: Empowering Indiana Through Innovation, Education and Community Impact, Purdue Extension
Avian Flu in Birds, IN-PREPared
Combine & Field Fires, IN-PREPared
Trees and Storms: Understanding Damage, Risk and Recovery – Got Nature? Blog, Purdue Extension – FNR
Community Development, Purdue Extension
Contact Your County Extension Educator, Purdue Extension
An Introduction to Trees of Indiana, Purdue University Press
Native Trees of the Midwest, Purdue University Press
ID That Tree, Playlist, Subscribe to Purdue Extension – Forestry and Natural Resources YouTube Channel
A Woodland Management Moment, Playlist, Purdue Extension – FNR YouTube Channel
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
Invasive Species Playlist, Playlist, Purdue Extension – FNR YouTube Channel
Indiana Department of Natural Resources: Invasive Species
What are invasive species and why should I care?, Got Nature? Blog, Purdue Extension – FNR
Invasive plants: impact on environment and people, The Education Store

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

Ed Sheldon, Farm/Veteran Job Coach and Engagement Coordinator
Department of Agriculture & Biological Engineering, Purdue University

Michael Wilcox, Assistant Director and Program Leader for Community Development
EDEN State Point-of-Contact

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Purdue University Landscape Report: Early fall is the time to begin preparing trees for the winter and get them off to a good start in the following spring. Preventative maintenance and some good cultural practices in autumn boost trees’ health and vigor during the winter and creates an encouraging growing environment in the spring. Here are 5 good tips for trees:

1. Scout for pruning issues.
   It’s advantageous to schedule pruning tasks after leaves have fallen. It’s much easier to see the branch structure of trees and deciduous shrubs in order to perform good selective cuts. Look for those non-beneficial plant parts and remove them. These include any dead, broken and crossing branches which can be removed. Also, search out and remove those epicormics sprouts in the canopy and basal sprouts emerging from around the trunk and root collar.  Refer to this pruning publication for more information.
   

   Newly-established trees benefit from fertilizer

2. Feeding for the future.
   Typically, tree roots have produce more root growth during the fall. Root systems are important as storage organs or banks to reserve energy for later. These stores of starch will become active energy on demand in the spring when shoot growth, leafing and flowering occur. Fertilization during this time will maintain soil nutrient levels and increase root production, promoting new growth in the spring. Newly, established trees and those younger trees are especially responsive to supplemental feeding. However, not all trees need or require fertilization. Refer to this publication on fertilization for more information.
   

   Mulch provides a blanket of protection

3. Complete cultural practices.
   It’s always beneficial to the tree to replenish mulch to give root systems an extra layer of protection against temperature extremes. This helps maintain the moisture levels in the soil during those drier winter months as well. Maintaining 2-3 inches of composted mulch over the root zone of the tree and landscape provides great protection. Also, it may be a good time to consider providing protective wraps on thin-barked or newly planted trees, if needed. Also, now is a good time for inspecting those existing wraps to be sure they are effective and not too tight around the trunk or harboring hidden pest issues.
   

   Good moisture levels going into the winter is critical for tree health

4. Water needed, still.
   The dry, cool air and low precipitation that can sometimes occur during fall and early winter can take a toll on trees. Provide supplemental irrigation with deep watering to prevent root damage and a good spring start. It is advisable to water only when temperatures will be above 40^o Water around mid-day so there is time to soak in before the freezing night temperatures. Applying approximately 5 gallons water per inch of tree diameter will be adequate for times when there is little to no rainfall going into winter.
5. Take inventory.
   This is a good time to assess your site for vacancies. Check your property for potential planting locations to install new trees next spring. Research during the winter allows plenty of time for good decision-making which includes proper species selection and suitable locations. Refer to the tree selection publication for more information.

There are many resources available to learn about proper tree care. If you are uncertain on how to maintain your trees or prefer professional services, it is important to reach out to an ISA Certified Arborist to help with the tree, within your landscape, especially the larger, mature trees. A Certified Arborist can proactively identify, analyze and evaluate your tree needs to maintain this important asset, your trees.

Resources:
Why Do Our Trees Go From Green Leaves to Different Colors?, Got Nature? Blog
Fifty Common Trees of Indiana
An Introduction to Trees of Indiana
The Nature of Teaching: Trees of the Midwest, The Education Store
Why Leaves Change Color, USDA Forest Service

Lindsey Purcell, Executive Director
Indiana Arborist Association

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It is in the vested interest of both humans and wildlife to reduce potential traffic collisions. Researchers in the Purdue Department of Forestry and Natural Resources and with the Indiana Department of Natural Resources looked at one possible option to do so in a five-year study involving the development and use of deer-reduction zones, areas where targeted recreational hunting was utilized to reduce animal-vehicle collisions.

The interdisciplinary research group recently published its findings in Science of the Total Environment. Along with lead author Zackary Delisle, a 2023 PhD alumnus, and Dr. Rob Swihart, professor emeritus of wildlife ecology with Purdue FNR, the research team included Carson Reeling, an associate professor with the Purdue Department of Agricultural Economics, Indiana state deer project leader Joe Caudell and 2018 PhD alumna Emily McCallen, a wildlife biometrician with the Indiana DNR Division of Fish and Wildlife.

“The initial goal for this research was to test a method for decreasing deer-vehicle collisions (DVCs) throughout Indiana,” Delisle said. “DVCs are quite frequent in Indiana. From 2003 to 2022, there were more than 300,000 reported DVCs in Indiana, with estimated costs to society of more than $2.5 billion dollars! Therefore, discovering a way to decrease the number of DVCs is important for deer management in Indiana.”

Researchers initially studied the activity of deer in delineated research units across the state, the findings of which are available in an article titled “Deer activity levels and patterns vary along gradients of food availability and anthropogenic development,” published in Nature’s Scientific Reports. The study examined the relationships between animal activity and the availability and quality of food, proximity to human development and other factors, utilizing trail cameras to sample more than 1,000 unique locations during the winters of 2019, 2020 and 2021.

“In that paper we found that deer in the northeast region of Indiana (what we called RMU 9) spend more of the day active than in other regions we studied,” Swihart explained. “Because traffic volume also tends to be higher during the day, deer in this region presumably are more likely to collide with a car. In the northeast region, we specifically estimated deer to be more active in the morning and less active at night, unlike the other regions.”

The publication summarizes the results:

“If animals either are active during a greater fraction of each day or shift their activity to coincide with periods of peak vehicular traffic volume, the chances of animals and vehicles colliding on the landscape likely will increase. In our study, we documented in RMU 9 the highest regional activity levels and a pattern characterized by a greater fraction of activity during the morning rush hours. Under such conditions, accidents involving collisions between motorists and deer might be expected. Indeed, deer-vehicle collisions occur at a rate 1.98 times higher in RMU 9 compared to RMU 3 and 4. Therefore, quantitative examinations of the relationships between characteristics of activity distributions and deer-vehicle collisions may help future management planning to reduce collisions. If positive relationships are found, incentivizing humans to hunt deer in close proximity to roadways may reduce occurrence of deer-vehicle collisions by causing deer to shift to nocturnal activity patterns, reduce movement rates, or select areas further from roads.”

Based on the results of the initial study, researchers tested how well policies designed to increase human hunting of deer (longer hunting seasons and increased harvest limits) reduced deer-vehicle collisions along 618 kilometers (or 384 miles) of high-risk roadways, or those in the upper 99^th percentile in terms of DVCs.

Of the 51 selected roadways covering 949 km, relaxed hunting regulations were implemented among 15 of them, designated as treatment deer reduction zones (DRZs), while 36 roadways were left as is, designated as control DRZs. All parcels of land within 0.8 km of the high-risk road were included as part of the deer-reduction zone.

A unique license was developed specifically for hunters pursuing deer within treatment DRZs, with a cost ranging from $24 to $240 depending on the year and a hunter’s residence status.

Findings from the study show both a decrease in number of deer-vehicle collisions and the amount of economic damages from those accidents, as well as increased revenue for the local wildlife management agency. The publication details:

“We estimated a strong interaction between treatment type and initiation of DRZs. Deer reduction zones decreased DVCs by a predicted 21.12 % along 618 km of high-risk roadways and prevented an estimated 69.6 DVCs from 2018 to 2022. Deer reduction zones saved up to $653,756 in economic damages to society during the 5-y treatment period. This total savings included $483,983 in estimated vehicular damage, $123,180 in avoided fatalities, and $46,593 in avoided injuries. The DRZs brought in $206,268 in revenue from license sales.”

Delisle said the success of the study lies not only in the fact that the methods tested worked in reducing DVCs, but also in the potential supplemental revenue for wildlife agencies, which are often underfunded and overwhelmed.

“Our findings are unique in that most previously tested methods for reducing DVCs cost a lot of money to implement, but our method actually generated revenue from hunting licenses,” Delisle noted. “We also found a way to decrease DVCs, which is massive in terms of the cost savings to society and the potential prevention of human injuries and fatalities, which unfortunately do occur in DVCs. In addition to nontraditional stakeholders, which could be defined as anyone driving a car in Indiana, our method for reducing DVCs also gives traditional stakeholders (i.e., hunters) more opportunities to harvest deer in certain areas of Indiana. Needless to say, we were very pleased with these findings because it was the first test of such methods across very large scales germane to state wildlife management.

“Knowing that we were able to figure out that increased recreational hunting worked at reducing DVCs feels special because we may have prevented someone from getting seriously hurt or killed. Personally, being able to analyze data on an experiment like that this has the potential to really influence how deer are managed in Indiana as well as help people (prevention of costs, human injuries and human fatalities) was really cool and I am thankful to have been given the opportunity to work on this project with my coauthors.”

Caudell believes that there is a future in applying these research findings beyond the original test areas and said the Indiana DNR is already working to do so.

“Now that we have evidence that this method can reduce deer vehicle collisions, the DNR is in the process of adding these deer reduction zones to our rules so that hunters will continue to use these areas over time,” Caudell said. “DNR’s deer biologists will also look for other areas around the state where we would expect this season to be effective and possibly expand the reduction zones to new areas around the state.”

Although the study shows that increased human hunting decreased the number of deer-vehicle collisions, more work must be done to explain the connection between hunting and a reduced number of accidents.

Delisle explains that the group has two main hypotheses: (1) the population density of deer may be reduced before most DVCs occur (mid-October to December), hence, there are fewer deer on the landscape to collide with vehicles; and (2) there is a behavioral change in deer where deer avoid areas with more human hunters (again, behavioral change before mid-October to December).

“Ultimately, although the findings of this project were pretty neat, more research is needed to discover what ecological mechanism is driving the reduction in DVCs,” Delisle noted. “As is typical in the awesome process of science, someone else will need to make that discovery.”

Beyond establishing the connection between hunting and reduced deer-vehicle collisions, another more specific hypothesis, related to No. 2 above, involves expanding the research to examine collision rates with bucks and does.

“Other researchers have shown that deer adjust their activity to avoid risky times and risky places, with greater tolerance for risk during breeding seasons (for bucks) and fawn-rearing seasons (for does),” Swihart said. “So, a prediction that could be tested in future research is that deer-reduction zone policies, which do not include fawning season, should be more effective in reducing deer-vehicle collisions with does than with bucks because does will be more likely to adjust their activity in response to greater hunting risk during fall/winter.”

To view this article along with other news and stories posted on the Purdue Forestry and Natural Resources website view: Researchers Study Deer-Vehicle Collision Reduction Method.

Resources:
Ask an Expert, Playlist, Purdue Extension – FNR YouTube Channel
Wildlife Habitat Hint, Playlist
Woodland Stewardship for Landowners: Managing Deer Damage to Young Trees, Purdue Extension-FNR YouTube Channel
Introduction to White-tailed Deer Impacts on Indiana Woodlands, Got Nature? Blog & The Education Store
Purdue Extension Pond and Wildlife Management
Understanding White-tailed Deer and Their Impact on Indiana Woodlands, The Education Store
Monitoring White-tailed Deer and Their Impact on Indiana Woodlands, The Education Store
Managing White-tailed Deer Impacts on Indiana Woodlands, The Education Store
How to Build a Plastic Mesh Deer Exclusion Fence, The Education Store
Managing Your Woods for White-Tailed Deer, The Education Store
Deer Harvest Data Collection, Got Nature? Blog, Purdue Extension – FNR
Handling Harvested Deer Ask an Expert? video, Purdue Extension – FNR YouTube Channel
Subscribe to Purdue Extension-Forestry & Natural Resources YouTube Channel, Wildlife Playlist
A Woodland Management Moment – Deer Fencing, Purdue Extension – FNR YouTube Video

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

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MyDNR, Indiana’s Outdoor Newsletter: Indiana DNR has confirmed the state’s first positive case of chronic wasting disease (CWD) in LaGrange County. CWD is a fatal infectious disease, caused by a misfolded prion, that affects the nervous system in white-tailed deer. It can spread from deer-to-deer contact, bodily fluids, or through contaminated environments.

There have been no reported cases of CWD infection in people, but the Centers for Disease Control and Prevention (CDC) recommends that hunters strongly consider having deer tested before eating the meat. The CDC also recommends not eating meat from an animal that tests positive for CWD.

CWD has been detected in 33 states including the four bordering Indiana (Ohio, Michigan, Illinois, and Kentucky). Because CWD had been detected in Michigan near the Indiana border, a detection in LaGrange County was likely.

If you see any sick or dead wildlife, deer or otherwise, please report your observations on the DNR: Sick or Dead Wildlife Reporting page.

For more information visit DNR: Chronic Wasting Disease (CWD).

To subscribe to the newsletter visit MyDNR Email Newsletter.

Resources:
Chronic Wasting Disease, USDA Animal and Plant Health Inspection Service (APHIS)
Bovine Tuberculosis in Wild White-tailed Deer, The Education Store, Purdue Extension resource center
Hunting & Trapping, Indiana Department of Natural Resources (DNR)
Designing Hardwood Tree Plantings for Wildlife , The Education Store
Wildlife Habitat Hint: Trail Camera Tips and Tricks, Got Nature? Blog
How to Score Your White-tailed Deer, video, The Education Store
White-Tailed Deer Post Harvest Collection, video, The Education Store
Age Determination in White-tailed Deer, video, The Education Store
How to Build a Plastic Mesh Deer Exclusion Fence, 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
Deer Impact Toolbox, Got Nature? blog, Purdue Extension-Forestry and Natural Resources (FNR)

Indiana Department of Natural Resources

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Purdue Landscape Report: Hoosiers are in for a special treat this spring.  If you have lived in Indiana for more than a year, you have probably grown accustomed to the singing of cicadas in the later days of summer. However, in some years, cicadas will emerge in the spring. This occurred in 2021 when most of the state was inundated in periodical cicadas as Brood X emerged from their 17-year development. This year, two broods will emerge concurrently: Brood XIII and Brood XIX.  Brood XIII is a 17-year cicada, while Brood XIX is a 13-year cicada. The emergence of these two broods isn’t unusual, but this year is special because they will emerge at the same time. Their schedules haven’t aligned for over two hundred years!  The last time these two cicada songs were heard together, Thomas Jefferson was in the White House. While this may sound like Indiana is about to be covered in cicadas, there are a few facts that may change your expectations.

There are two types of cicadas in the Midwest: annual cicadas and periodical cicadas. Annual cicadas, as the name implies, are seen each year. They normally spend two to five years underground, but there are enough of them that we see them emerge each year. Annual cicadas emerge individually, not as a group, and we see them towards the end of the summer, thus their other common name, “dog day cicadas”. Periodical cicadas have a much different life cycle. They remain in the ground as nymphs for either thirteen or seventeen years, feeding on the roots of the trees they will eventually climb. Around April, the broods will emerge together using a combination of temperature and their own internal clock. Both types of cicadas feed on deciduous trees and tend to inhabit areas where eggs were laid during previous emergences, giving them a low likelihood of moving to new areas. Annual cicadas are green with black eyes, and periodical cicadas have dark-colored bodies with red eyes and orange legs, making it easy to differentiate them as we enter the early summer and both types are present.

The term “brood” cicada biology is referring to a group of cicadas that share the same developmental time and the same physical area.  A brood will often contain several different species, though they will all belong to the genus Magicicada. Cicadas in a brood do not need to be genetically related to each other. Some broods are very small and cover a small area, whereas others can cover a significant portion of the Midwest. For example, Brood XII, a brood of 17-year cicadas, last appeared in 2023 and has only been detected in Allen and Orange counties. On the other hand, Brood X, also known as the Great Eastern Brood, covers the entirety of Indiana and several other states. Brood XIII and Brood XIX both cover several states, but they will have very little overlap in Indiana.  Only eight western counties, between Posey and Jasper counties, will experience Brood XIX, and three northern counties (Lake, LaPorte, and Porter) will see Brood XIII. Nowhere in Indiana do the broods overlap. Essentially, while there will be a lot of cicadas emerging all at once, the lack of overlap will mean this emergence will be notable, but nothing compared to the Brood X emergence a few years ago.

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Resources:
Periodical Cicadas, Indiana Department of Natural Resources, Division of Entomology
17 Ways to Make the Most of the 17-year Cicada Emergence, Purdue College of Agriculture
Ask an Expert: Cicada Emergence Video, Got Nature? Blog, Purdue Extension-FNR
Periodical Cicada in Indiana, The Education Store, Purdue Extension resource center
Cicada Killers, The Education Store
Purdue Cicada Tracker, Purdue Extension-Master Gardener Program
Cicada, Youth and Entomology, Purdue Extension
Indiana Department of Entomology and Plant Pathology

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

Bob Bruner, Exotic Forest Pest Specialist
Purdue Extension – Entomology

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