Department News

Prof. Russ Groves

Changing of the Guard

July 1st marks the changing of the guard.  Thank you Dr. Susan Paskewitz for your service to the department. Dr ...
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PJ Liesch

Take Kids on a Backyard Safari

PJ Liesch was quoted in National Geographic magazine via MSN in this article: “Spending time in nature and specifically looking ...
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Prof. Susan Paskewitz

Download the Tick App and Help Researchers Track Ticks

A free citizen science opportunity from the Midwest Center of Excellence for Vector-Borne Diseases is available now: The Tick App ...
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UW Entomology Alum Receives Killam Annual Professorship at University of Alberta

UW Entomology alum Nadir Erbilgin (Ph.D. 2001) received the University of Alberta Killam Annual Professorship. This award is granted to ...
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Prof. Claudio Gratton

New App Helps Wisconsin Farmers, Researchers Track Wild Bee Populations

Dr. Claudio Gratton and Katy Thostenson were recently featured in this story from Wisconsin Public Radio on the launch of ...
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/ Claudio Gratton, News
PJ Liesch

Asian Giant Hornet Not an Immediate Threat to Wisconsin

The news has been filled with reports about the Asian giant hornet recently, but Extension entomologist PJ Liesch recently spoke ...
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/ News, PJ Liesch

Michael Howe Receives 2020 Memorial Scholarship

Ph.D. candidate Mike Howe was recently awarded the 2020 Memorial Scholarship from the Western Forest Insect Work Conference.  The scholarship ...
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/ Mike Howe, News

Should We Worry About Murder Hornets?

Emeritus professor and Hymenoptera expert, Dr. Bob Jeanne, spoke with Madison's Channel 3000 TV about the Asian giant hornet (Vespa ...
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/ Bob Jeanne, Uncategorized
Prof. Rick Lindroth

Rick Lindroth Among 2020 Hilldale Award Honorees

Each year, the Secretary of the Faculty recognizes four professors from the University of Wisconsin–Madison for distinguished contributions to research, ...
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PJ Liesch

Can Mosquitoes Spread Coronavirus?

The novel coronavirus is catching our attention in the news and many have wondered if mosquitoes might be able to ...
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/ News, PJ Liesch
Prof. Shawn Steffan

UW Entomology Supports Wisconsin Cranberry Growers

Dr. Shane Foye and Dr. Shawn Steffan were recently featured in Fruit Growers News for their work on entomopathogenic nematodes ...
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/ News, Shawn Steffan
Prof. Claudio Gratton

The Way We Eat: Bees, Citizen Science, and Colony Collapse Disorder

Pollinator researchers Katy Thostenson and Dr. Claudio Gratton recently joined Jonah Chester on WORT 89.9 Madison to discuss the status ...
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/ Claudio Gratton, News
Prof. Karen Oberhauser

What’s Really Killing Monarch Butterflies?

Monarch butterfly expert, Dr. Karen Oberhauser, was featured in this article in Scientific American discussing the threats facing monarch butterflies ...
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/ Karen Oberhauser, News
Prof. Claudio Gratton

Bumble Bees and Climate Chaos

Bumble bees face perilous times due to changing climate, land-use changes, and other factors.  Dr. Claudio Gratton was featured in ...
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/ Claudio Gratton, News
Prof. Russ Groves

Controlling Crop Pests with RNA

New pest control technologies, including RNA-based products, offer novel ways of targeting important crop pests while reducing conventional pesticide inputs.  ...
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/ News, Russ Groves
Prof. Susan Paskewitz

Taking Ticks Seriously

Deer ticks pose significant health risks to Wisconsin residents and Governor Tony Evers recently signed a bill requiring the DNR ...
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/ News, Susan Paskewitz
PJ Liesch

Beetles Suspected in Horse Deaths

Extension entomologist PJ Liesch was recently interviewed by both the Wisconsin State Journal and the Milwaukee Journal Sentinel about the ...
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/ News, PJ Liesch
Prof. Karen Oberhauser

Can Monarchs Change with the Climate?

Monarch expert Dr. Karen Oberhauser was recently featured in the Washington Post regarding monarch butterflies and the challenges they face ...
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/ Karen Oberhauser, News
Prof. Sean Schoville

The Color of Butterfly Wings

Dr. Sean Schoville and graduate student Khuram Zaman were recently featured in Molecular Ecology Spotlight.  Zaman and Schoville have been ...
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/ News, Sean Schoville
PJ Liesch

Bugs and Suds: Liesch to Talk Insects at Science on Tap Event

Extension entomologist PJ Liesch will be discussing insects at the Science on Tap Event in Minocqua on Wednesday, December 4th.  ...
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/ News, PJ Liesch

UW Students Take 2nd Place at ESA Linnaean Games

Every year, teams of entomology students from around the country face off at the Linnaean Games—a head-to-head entomology-themed trivia competition ...
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/ Graduate Students, News
Prof. Susan Paskewitz

Early Cold Snap Doesn’t Faze Ticks

Despite the early snow around Halloween and unseasonably cold temperatures, ticks can still be encountered.  Tick levels seem to be ...
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/ News, Susan Paskewitz

Welcome Dr. Amy Trowbridge!

The entomology department is excited to announce our new forest entomologist, Dr. Amy Trowbridge.  Amy’s research focuses on how climate ...
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/ Amy Trowbridge, News
Prof. Karen Oberhauser

Monarchs on the Move

Monarchs are on the move one their 2000+ mile trip to their overwintering ground in Mexico.  Monarch expert, Dr. karen ...
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/ Karen Oberhauser, News
Prof. Shawn Steffan

Bees Need Meat

It seems intuitive that bees herbivores that eat pollen and nectar.  Fascinating research by Dr. Prarthana Dharampal and Dr. Shawn ...
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/ News, Shawn Steffan
Prof. Susan Paskewitz

The Secret Lives of Mice and Ticks

Mice play an important role with ticks such as deer ticks, but until now some of the basic nesting habits ...
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/ News, Susan Paskewitz
Prof. Sean Schoville

Undergraduate Researcher an Insect Sleuth

Dr. Sean Schoville and undergraduate student Mary Magnuson were recently featured in Agri-view for their work on the Colorado Potato Beetle ...
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/ News, Sean Schoville
PJ Liesch

Fighting Back Against the Emerald Ash Borer

The invasive emerald ash borer is a highly destructive insect, yet homeowners, arborists, and city foresters do have ways of ...
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/ News, PJ Liesch
PJ Liesch

The “Buzz” on Yellowjackets

Backyard barbeques often bring uninvited guests, such as scavenging yellowjackets.  Extension entomologist PJ Liesch describes the “buzz” on these insects ...
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/ News, PJ Liesch
PJ Liesch

Wisconsin Insect Fest—A Celebration of Insects

Time to celebrate all things insects!  PJ Liesch was recently a featured guest on Wisconsin Public Radio to discuss the ...
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/ News, PJ Liesch
Prof. Susan Paskewitz

A New Repellent from…Bacteria

Bacteria living in worms—more specifically nematodes—may act as a natural repellent against mosquitoes based on exciting research out of the ...
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/ News, Susan Paskewitz
Prof. Susan Paskewitz

Rare Tick in Eau Claire

A rare tick for Wisconsin was recently spotted in northern Wisconsin.  Dr. Susan Paskewitz describes how this lone star tick ...
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/ News, Susan Paskewitz
Prof. Karen Oberhauser

Rearing Monarchs Might Not be Such a Good Thing

In an interesting twist, a recent study found that monarch butterflies raised in captivity may struggle to navigate properly during ...
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/ Karen Oberhauser, News
PJ Liesch

Good News for Monarchs

There’s good news for monarchs according to Extension entomologist PJ Liesch in this interview with the Wisconsin State Farmer.  Last ...
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/ News, PJ Liesch
Prof. Susan Paskewitz

Tracking Ticks with The Tick App

The Tick App smartphone app from the Midwest Center of Excellence for Vector Borne Disease is looking to gain a better ...
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/ News, Susan Paskewitz
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Look out for slugs and cutworms in field crops!

Field crop entomologist Bryan Jensen has been urging farmers to keep a close eye on their fields for damage as ...
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/ Bryan Jensen, News
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Insect Trends Change Over the Years

Insect populations change over time, and retired Extension entomologist Phil Pellitteri recently spoke in Wausau to describe insect trends over ...
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/ News, Phil Pellitteri
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“Swarm to Table” Edible Insects Event Series

While entomophagy, or the eating of insects, may seem taboo in the US, insects are widely used around the globe ...
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/ News
PJ Liesch

Bed Bugs Return

Bed bugs are back on the scene and can show up wherever humans move them according to Extension entomologist PJ ...
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/ News, PJ Liesch
Prof. Susan Paskewitz

Dr. Paskewitz Goes to Washington

Dr. Susan Paskewitz recently traveled to Washington DC to meet with federal officials and speak out on behalf of the University ...
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/ News, Susan Paskewitz
Prof. Karen Oberhauser

Backyard Mosquito Treatments Can Impact Other Insects

With insects in decline, it’s important to keep our everyday actions in mind.  Dr. Karen Oberhauser discusses how backyard mosquito ...
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/ Karen Oberhauser, News
PJ Liesch

Winter Survival of Insects

Extension entomologist PJ Liesch discusses winter survival of insects and why this year’s polar vortex might not have much of ...
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/ News, PJ Liesch
Prof. Susan Paskewitz

Dr. Susan Paskewitz Will Lecture on Ticks and Their Role in Lyme Disease at the UW-Platteville Baraboo/Sauk County

Dr. Susan Paskewitz will be giving a lecture on ticks and their role in Lyme disease at the University of ...
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/ News, Susan Paskewitz
Prof. Karen Oberhauser

Butterflies are Charismatic Insects Humans Readily Connect With

Butterflies are charismatic insects that humans readily connect with according to Karen Oberhauser.  Unfortunately, butterflies also face significant declines as ...
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/ Karen Oberhauser, News
PJ Liesch

Cold Weather Won’t Mean Fewer Bugs This Summer

Despite the brutally cold polar vortex last month, many of Wisconsin’s insects are well-adapted to the cold and we’ll still ...
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/ News, PJ Liesch
Prof. Karen Oberhauser

Monarch Butterfly Challenges

Monarch butterflies face tough challenges, yet a recent overwintering survey found a strong increase in monarch numbers in Mexico.  Dr ...
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/ Karen Oberhauser, News
PJ Liesch

Top 10 Insect Trends for 2018

Each year tells a different insect story and last year didn’t disappoint.  PJ Liesch of the UW Insect Diagnostic Lab ...
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/ News, PJ Liesch
Prof. Sean Schoville

Yosemite Butterflies — An interactive, Digital Field Guide to the Park’s 98 Butterfly Species

Dr. Sean Schoville and Jacki Whisenant recently released Yosemite Butterflies—an interactive, digital field guide to the park’s 98 butterfly species.  The app ...
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/ Jacki Whisenant, News, Sean Schoville
PJ Liesch

Did the Arctic Blast Take Out All the Insects?

Did the arctic blast take out all the insects?—Not so fast, says PJ Liesch of the UW Insect Diagnostic Lab.  ...
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/ News, PJ Liesch

Mosquito Repellent Made from Bacteria in Worms

Research in the Paskewitz lab by Mayur Kajla and colleagues has recently identified a novel mosquito repellent from bacteria.  Susan ...
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The Precarious Status of the Monarch Population in the western U.S.

Department alumna (Gratton Lab) and current Xerces Society Conservation Biologist, Emma Pelton, was recently interviewed by the new York Times ...
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/ Alumni, Claudio Gratton, Emma Pelton, News
PJ Liesch

The Rise of the Brown Marmorated Stink Bug

The invasive brown marmorated stink bug has become common in some parts of Wisconsin.  Extension entomologist, PJ Liesch, discussed the ...
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/ News, PJ Liesch
Prof. Karen Oberhauser

Many Factors Affect Monarch Butterflies

Dr. Karen Oberhauser discusses the many factors affecting monarch butterflies in this recent article from National Geographic: https://www.nationalgeographic.com/animals/2018/12/monarch-butterflies-risk-extinction-climate-change/ ...
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/ Karen Oberhauser, News
Dr. Dave Hogg

Waunakee Passes Resolution to Help Monarch Butterflies

The Village of Waunakee, Wisconsin has passed a resolution to join the effort to help increase resources for monarch butterflies.  ...
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/ Dave Hogg, News
PJ Liesch

The Spread of the Invasive Brown Marmorated Stink Bug

Since its arrival in the state in 2010, the invasive brown marmorated stink bug has spread to over 25 counties.  ...
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/ News, PJ Liesch
PJ Liesch

Historic Flooding Leads to Unprecedented Late Season Mosquito Pressure

Wisconsin saw historic flooding events in late summer, which lead to unprecedented late season mosquito pressure in much of the ...
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/ News, PJ Liesch
Prof. Karen Oberhauser

Monarch Butterflies – an Adaptable Species

Monarch butterflies face tough times but as monarch expert Karen Oberhauser discusses, these charismatic butterflies are an adaptable species, which ...
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/ Karen Oberhauser, News
PJ Liesch

Purple Carrot Seed Moth Arrives in Wisconsin

A surprising number of non-native, invasive insects show up in the country and state each year.  In this recent article ...
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/ News, PJ Liesch

Former Department Chair Wyman Passes Away

The UW Entomology Department is sad to announce the recent passing of friend and colleague, Dr. Jeff Wyman.  Jeff was ...
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/ Jeff Wyman, News
PJ Liesch

PJ Liesch Quoted in Article on Beekeeping and Pollinator Declines

With pollinators in decline, many folks are becoming interested in beekeeping as a hobby. PJ Liesch of the Insect Diagnostic ...
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/ News, PJ Liesch
Prof. Susan Paskewitz

Cooler Temps in the Near Future Should Bring an End to Mosquito Season

While Wisconsin has seen a recent boom of mosquitoes, cooler temperatures in the near future should help bring an end ...
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/ News, Susan Paskewitz
Prof. Susan Paskewitz

Recent Heavy Rains Result in Explosion of “Floodwater” Mosquitoes

Recent heavy rains have resulted in an explosion of “floodwater” mosquitoes in many parts of Wisconsin, as Mosquito expert Susan ...
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/ News, PJ Liesch
PJ Liesch

Tiny Chinch Bug Played a Role in Wisconsin’s Journey to Become the Dairy State

While Wisconsin is known as “America’s Dairyland”, that wasn’t always the case.  Insect Diagnostician, PJ Liesch, recently published an article ...
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/ News, PJ Liesch
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Entomology Department Projects at the UW Arboretum

The University of Wisconsin Arboretum has a strong legacy of research, including many projects conducted by past and present members ...
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Grad Student Audrey Simard’s Research on Gutstion Fluid and Potential Impacts on Pollinators Featured in The Country Today

Graduate student Audrey Simard’s research on gutstion fluid and the potential impacts on pollinators was recently featured in this article ...
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/ Audrey Simard, News
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Armyworms Popping Up in Damaging Numbers in Crop Fields Around Wisconsin

In a surprise for the state’s farmers, armyworms have been popping up in damaging numbers in crop fields around Wisconsin ...
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PJ Liesch

Northern Black Widow Rarely Encountered in Wisconsin

The Northern Black Widow (Latrodectus variolus) is a rarely encountered spider in Wisconsin according to extension entomologist PJ Liesch in ...
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/ News, PJ Liesch
Prof. Susan Paskewitz

The Tick App Launched

Researchers at UW-Madison have teamed up with colleagues at Columbia University to create and launch The Tick App to collect data on ...
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/ News, Susan Paskewitz
Prof. Susan Paskewitz

Ticks Abundant This Year and Showing Up in More Residential Areas

No two years are the same when it comes to outdoor pests like ticks.  Ticks are not only abundant this ...
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/ News, Susan Paskewitz