Department of Entomology
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[Seminar Blog] Invasive Sorghum Aphids: Genetic and Microbiota Composition

11/3/2022

 
written by: Minh Le
​Not many people have heard of the sorghum plant, so you might be surprised to know that it is grown in 21 states (Figure 1)! The “Sorghum Belt”, or area comprising states that have abundant sorghum production, stretches from South Dakota all the way down to southern Texas (National Sorghum Producers). The sorghum plant produces nutritious grain, which is an important ingredient for livestock feeds as well as a whole grain alternative to people with low gluten tolerance or who suffer from celiac disease. Besides its nutritional benefits, sorghum production can have a positive impact on the environment and sustainability efforts, as the sorghum bushels can be extracted for ethanol, a renewable source of fuel, and require one-third less water to grow compared to other feedstocks (National Sorghum Producers). Despite its agricultural and environmental importance, as with other widely cultivated agricultural crops, these plants are a buffet for pest insects whose voracious appetite cause significant economic damage every year. A prominent invasive pest feeding on sorghum in the US is the sorghum aphid (Melanaphis sorghi). These insects use their syringe-like mouthparts to pierce and suck juices from plant tissues, damaging them. In 2013 and 2014, it is estimated that these aphids caused 50 to 100% of crop loss, and in 2015, sorghum producers in the Rio Grande Valley lost approximately 31 million dollars. The entomology colloquium welcomes Dr. Jocelyn Holt, a researcher at Rice University, Texas, who provided insight into her research on the population genetics of sorghum aphids across the US and the symbiotic microbiota that is associated with them.

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Ryabov has pub out in Frontiers in Insect Science on vector-pathogen interactions

10/18/2022

 
Varroa mites and viruses they vector are leading causes of honeybee losses. University of Maryland researchers Drs Eugene Ryabov (Bee Lab) and Zachary Lamas (Hawthorne Lab) team up with U.S. Department of Agriculture to study varroa mite infectiousness and the effect of the vectored viruses on varroa survival. Last month they published their findings in Frontiers in Insect Science entitled, “The vectoring competence of the mite Varroa destructor for deformed wing virus of honey bees is dynamic and affects survival of the mite.” The authors hope this work will provide new insights into the varroa mites' impact on colony disease and ways to manage it. 

Link to paper:  https://www.frontiersin.org/articles/10.3389/finsc.2022.931352/full

Publication out in SciReports on gut microbiome of cicadas - Co authored by Raupp

10/18/2022

 
University of Maryland PhD candidate Kyle D. Brumfield and Drs. Rita Colwell and Michael Raupp, teamed up with colleagues from the University of Connecticut-Storrs, University of Connecticut-Hartford, University of California Berkeley, and EZbiome, Inc. to explore the rich diversity of the gut microbiome of periodical cicadas. For those interested in learning more about their research into these remarkable insects, check out publication out this week in Scientific Reports.

Link to article: https://www.nature.com/articles/s41598-022-20527-7

Raupp chats Ants w/ the Weather Channel

10/18/2022

 
Prof Emeritus Mike Raupp tells the The Weather Channel yes, ants are indeed abundant, reaching every continent except for Antarctica. "They outweigh birds and all wild mammals which is is simply a huge huge amount of mass" Raupp says. & not only are the sheer # and distribution of ants amazing but so is the extraordinary contributions ants make to our planet. Learn more here: 

[Seminar blog] How do insects stay hydrated in the heat?

10/18/2022

 
written by: Darsy Smith and Benjamin P. Gregory
​
​How do insects that live in dry environments like deserts keep from drying out, and how might these adaptations help them adjust to our constantly changing world? For our first colloquium of October, the Entomology Department welcomed Dr. Henry Chung, an assistant professor at Michigan State. Dr. Chung’s research investigates the genetic mechanisms underlying insect adaptations to different environmental conditions, particularly dry ones. Just like humans, insects need water to live their lives, so making sure they don’t dry out–or
desiccate–is vital to their survival. So how do insects that live in hot and dry conditions prevent desiccation? One of the most important pieces of an insect’s defense against desiccation is its epicuticle, the waxy top layer of its exoskeleton, and the chemical pieces that make up this epicuticle, called cuticular hydrocarbons (CHCs). 

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Mariom Adriana Carvajal takes a second look at genus Steatoda

10/3/2022

 
Spiders of the genus Steatoda, known as false black widows, have a resemblance to the black widow but are less harmful. However, around the world, there has been an increase of reports that this "less harmful" genus has been causing quite a debilitating bite. Heightened public concern has researchers, like grad student Mariom Adriana Carvajal (Shultz Lab), revisiting this genus. Mariom has been studying 1 of the 7 species found in Chile, taking a second look at its characteristics and its distribution. Today, Mariom and collegues published some of that work in Revista Chilena de Entomología, entitled, “A new record of Steatoda porteri in Chile.” Their findings show that although Steatoda porteri has extended its range, it remains outside urban areas for now. ​

[seminar Blog] LENDING AN EAR: IMPLICATIONS OF GENE FLOW IN MEXICAN CORN PRODUCTION

9/29/2022

 
written by: Alireza Shokoohi
​

What are you passionate about? Dr. Carlos Blanco may be a Senior Entomologist at the U.S. Department of Agriculture, handling the international import and domestic movement of insects, but he still spends much of his own time conducting research. Early in the mornings and on weekends, he can be found in crop fields collecting data to answer questions about a subject he is passionate about: corn. 

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The Diamondback Shines spotlight on insect Zoo

9/27/2022

 
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photo credit: Autumn Hengen/The Diamondback
The Dept of Entomology is fostering an appreciation for insects one event at a time. “People go from being afraid of bugs and swearing they will never hold something to not being able to leave the table because they’re having such a great time. It seems like they’re having a profound change of mind,” Todd Waters said to The Diamondback. Read more about how the University of Maryland Insect Zoo is capturing the hearts and minds of DMV residents.

link to article: 
https://dbknews.com/2022/09/26/entomology-zoo-burtonsville-day/?fbclid=IwAR1MAlOEMEe3pwM2Uh3d6Zjn6grdpzCJBI2t6WqBNaq8t9v4-M9aHPKX6eA

Raupp tells Washington Post climate change is extending mosquito season

9/27/2022

 
Sorry DMV residents, mosquitoes are predicted to follow us well into the fall season. University of Maryland Prof Emeritus Mike Raupp shares why with the Washington Post.

Quote: Because they’re coldblooded, insect development is very closely tied to ambient temperature, so the warmer it is, the faster they develop,” Raupp said. “Our mosquitoes can have multiple generations every year. So as we move into a warming world — because it gets warm earlier, it stays warm later and it’s generally hotter — we simply have more generations of these mosquitoes every single year.

link to article: https://www.washingtonpost.com/dc-md-va/2022/09/25/mosquito-season-washington/

Lamp's Freshwater Bio gets mention in MD Today

9/20/2022

 
With a bit of help from UMD's Teaching and Learning Innovation Grant, Drs Lamp and Avanesyan show Freshwater Biology students how to use innovative tech to extract DNA from insects and ID species. Read more at MD Today article "From Bugs to Bronze Age, Nearly 300 Courses Get Creative Boost"

Margaret Palmer named Honorary Member of the British Ecological Society

9/20/2022

 
Congratulations to Dr. Margaret Palmer for being awarded Honorary Membership at the British Ecological Society. This award recognizes Margaret's exceptional contribution at the international level to the generation, communication and promotion of ecological knowledge and solutions. See BES's press release here>>  

Thorne helps TED-ED w/ creature feature

9/19/2022

 
termite cartoon
Photo Credit: TEDEd
University of Maryland Professor Emerita, Barbara Thorne recently served as Educator for TED-Ed project, “Coneheads, egg stacks and anteater attacks: The reign of a termite queen.” The subject of this TED feature, the conehead termite (Nasutitermes corniger), has been one of Dr. Thorne's study organisms since her dissertation work in the Neotropics. Today you can find Dr. Thorne in Florida researching ways to eradicate this termite who snuck into the Ft. Lauderdale area in 2001. Check out video to learn more about these termites and their reign: https://www.youtube.com/watch?v=JGnXq8l-rwo

Insect Terps attend EntoQuest Summer Meeting

9/19/2022

 
Fac and students at EntoQuest - group photo outside cabinphoto credit: Amanda Rae Brucchieri
Earlier this month UMD Entomology faculty and students attended EntoQuest, a premiere summer event put on by the ESA’s Eastern Branch. Located in the beautiful mountains outside Front Royal, Virginia the meeting was designed to instill a sense of community, bringing together students, professors and professionals from all over. Events throughout the weekend provided chances to network, learn, explore, and collect with fellow insect enthusiasts. There were opportunities to gain knowledge about aquatic macroinvertebrates, forensic entomology, collection techniques and the pestering lantern fly. Experts shared their knowledge through laid back conversations and casual poster viewing. Amanda Rae Brucchieri, 1st yr grad student in Lamp lab said, “The first ever Eastern Branch Summer EntoQuest was a great way for attendees to enjoy the company and knowledge of others, wrapping up a summer full of data collection and running around perfectly.” See photo of Amanda and other UMD attendees below. & if you are interested in future Eastern Branch events, check out plans for the next meeting in Providence, Rhode Island.
https://www.entsoc.org/membership/branches/eastern/meeting

FAll 2022 Cory Undergraduate Award Recipients

8/23/2022

 
Matt and Jane
Photo: Matt Nikzad (w/Henry) & Jane Quackenbush
​Congratulations to the recipients of the Fall 2022 Ernest N. Cory Undergraduate Scholarship! This scholarship provides up to $1,000 for undergraduate students each semester who have creatively contributed to Entomology Department research and/or extension efforts. Choose, "Read More" to find out more about Matt Nikzad and Jane Quackenbush and their extraordinary efforts in Entomology.

Read More

Lamp Lab uses DNA metabarcoding to study diets of slf at their earliest instars

8/9/2022

 
SLF on host plantPhoto Credit: Alireza Shokoohi
The bold beautiful colors of a 1 inch long adult spotted lanternfly are pretty hard to miss. Their striking attributes allow for researchers to make many experimental observations about the insects, including discoveries about their feeding preferences as adults. However, at the earliest instars the spotted lanternflies are smaller and muted in color making feeding preferences much more difficult for researchers to track by observation alone. To overcome the difficulties of the observational approach, the Lamp Lab turns to DNA metabarcoding to get more insights about their diet. The results of their study were published earlier this summer in a special issue of Insects.
​
Focusing exclusively on the first nymphal instars, the Lamp Lab used a novel approach, utilizing “bulk” DNA extracts for DNA metabarcoding of nymphal gut contents, to identify plants that the nymphs had ingested prior to being collected. Through this novel approach they were able to identify 13 novel host plants that have not been previously included in host plant lists for spotted lanternfly in the U.S. The Lamp Lab is hopeful that discoveries like these, on the diet of the spotted lanternfly across development stages, will lead to better management of this invasive species.

Share your colleagues work with your networks on facebook, twitter, the car ride with your friends who are always asking you about bugs b/c you work in Entomology.

President Pines celebrates Ag research w/ Dr. Hamby

7/29/2022

 
hamby lab in soybean field
photo credit: President Pines
With selfie, President Pines celebrates Ag research w/ Dr. Hamby and crew -Emma, Kyree, Shea and Arthur. Surrounded by soybean crops Dr. Hamby gave Pres Pines a rundown of the lab's research into the impacts of planting dates on soybean pests & the effects of pyrethroids tank mixes on both soybean pests and beneficial insects. Thanks for stopping by the farm Pres Pines and championing Ento’s work!

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St. Leger Lab has a paper out on Metarhizium–plant–insect interactions

7/27/2022

 
Metarhizium is a common fungus that is found in soil and widely used in insect pest control today. It is known for its ability to kill a wide range of insects, protect surrounding plants and provide plants with much sought after nitrogen. St. Leger Lab has a new paper out in Current Opinion in Microbiology that looks into the current research on this fungi and its–plant–insect interactions. Although experimentation has led to detailed knowledge of how this fungus interacts with plants and insects, most of these studies have focused on highly controlled interactions between single species in the lab, leading to a knowledge gap when it comes to understanding Metarhizium plant–insect interactions in natural communities. The authors hope an increase in Metarhizium studies on natural ecosystems will lead to a more comprehensive understanding of this fungi’s plant protection ability.

Before concluding a shout out is needed. Congrats to Huiyu Sheng, this is her 1st first-authored paper, and to Raymond St. Leger her proud UMD mentor.
​
Please share news with friends, colleagues & that one fungi you met while at your last conference: facebook and twitte

This Summer Via Presents web series "Climate Solutions: How We Create a Better Future"

7/1/2022

 
Join University of Maryland climate expert Professor Sara Via this summer for a free web series focusing on climate change. All webinars held Wednesdays, 4-5:30 pm.
​
Register at http://www.climatecorner.org/2022-webinars
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USDA NIFA Shines Spotlight on Espindola in honor of Pollinator Month

7/1/2022

 
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In honor of #NationalPollinatorMonth the U.S. Department of Agriculture highlights the amazing work of an incredible person, Dr. Anahi Espindola, Asst Prof at the University of Maryland. Anahi shares details on current NIFA projects, provides sage advice to up and comers & promotes DEI.

Read article her: https://go.umd.edu/cTJ

Share news about your awesome colleague with your friends and fam on facebook and twitter and whatever other platforms you use. 

Raupp Gives NBC4 Tips on How to Fight the Mosquitoe Bite this Summer

7/1/2022

 
PicturePhoto Credit: NBC4
Hot humid weather with scattered storms make conditions ideal for mosquitoes in the DMV. The Bug Guy, Prof Emeritus Mike Raupp, gives NBC4 tips on how individuals and their communities can fight the bite:
- eliminate breeding sites
- apply personal protection
- and use Gravid Aedes Trap
https://www.nbcwashington.com/news/local/how-to-attack-those-pesky-mosquitoes/3068274/

[Seminar blog] ReMOT Control offers accessible arthropod germline editing

5/31/2022

 
writen by: Demian A. Nuñez and Darsy Smith 

​The end of the semester is here! For the last weekly seminar series, the Entomology Department welcomed Dr. Jason Rasgon to speak about his research and experience with new molecular tools for gene editing in arthropods. Dr. Rasgon completed his Ph.D. at the Entomology Department of the University of California, Davis. There he had the opportunity to conduct research on Wolbachia infection dynamics, a naturally occurring bacteria that lives within several insect taxa and is passed from one generation to the next through their eggs. Since early in his career, he has successfully answered research questions in various systems, which has given him the experience to lead projects across a wide range of biology-subdisciplines. Currently, he is a professor of Entomology and Disease Epidemiology at Pennsylvania State University, where he integrates population biology, ecology, molecular tools, and theory to answer both fundamental and applied questions in genetics. The main goal of Dr. Rasgon’s lab is the development of new methods that can be used to introduce transgenes into natural disease vector populations.

Read More

Department Of Entomology Newsletter | Spring 2022

5/24/2022

 
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Before you bug out for the summer, we invite you to look back at Spring 2022 with us. DYK, the Entomology minor graduated its first students at spring commencement? Or that Dr. O’Brien was awarded the OMSE Excellence in Service Award this spring? Or that, in May, alum William Gimpel talked to the WaPo about developing alpha-gal syndrome after an encounter with a Lonestar tick? These are just a few of the stories mentioned in the Spring 2022 newsletter. Content also includes news on publications, awards, defenses and much more.



Raupp and alum Gimpel on tick borne illness & climate change

5/24/2022

 
As weather warms lone star ticks are expanding their territory North. Mike Raupp explains in the New York Times more about the tick, including why its bite can lead to a red meat allergy called alpha-gal syndrome. & The Washington Post interviews alum William Gimpel about his experience after developing the syndrome. 

Quote from Raupp in NYT: “What we’re now seeing is a wide-open door for ticks to continue expanding their range further northward”

Quote from Gimpel in Post: "I developed hives, fainted, my blood pressure dropped, and I told my wife on the way to the ER that I could not see. That has been my most serious reaction."

Read NY Times article here>>
Read Washington Post article here>>

Researchers document high recovery rate and spatial spread of EAB biological control agent S. galinae

5/24/2022

 
The emerald ash borer (EAB) is a small and mesmerizing beauty and also one of the most destructive invasive species in the US. Since its introduction to the US in 2002 it has killed millions of ash trees causing serious economic and ecological damage. One approach for long term EAB management has been to introduce parasitic wasps from EAB’s native range to the US for biocontrol. A recent study by UMD and USDA researchers, Stokes Aker, Rafael de Andrade, Jian Duan and Dan Gruner  – published this year in the Journal of Economic Entomology – takes a closer look at the performance of these wasps. 
 
Their study suggests that Spathius galinae has a higher recovery and spatial spread compared to Spathius agrili, at least in Maryland. The authors would like to see continued monitoring and evaluation of both species to gain a better understanding of why one parasitoid appears to have gained a better foothold in Maryland than the other. Information like this is important to improve the efficacy of current biocontrol programs against EAB in North America.
 
Before concluding a shout out is needed. Congrats to Stokes Aker this is his 1st first-authored paper, and to Dan Gruner his proud UMD mentor.

New course explores sustainable pest management

5/24/2022

 
PictureDr. Shrewsbury guest leads BSCI487 field trip to Bell Nursery.
This spring Dr. Hamby kicked off a new course BSCI487, “IPM: science-based decision making for sustainable pest management.” The course explores sustainable pest management in agroecosystems using the integrated pest management (IPM) paradigm. The class of 11 students met each Tuesday and Thursday for lecture, discussion, lab and the occasional field trip.

Sankara Ganesh, an undergraduate Biological Sciences major specializing in Ecology and Evolution with a minor in Entomology and Sustainability, describes the course as the perfect overlap between his interests in biology and sustainability. The class taught him about the various consequences of pesticide overuse including risks to human health, environmental contamination, non-target effects on beneficial arthropods, and the development of pesticide resistance. Now that Sankara has taken the course he feels even more enthused about IPM, saying “The key to managing pests while minimizing consequences lies within IPM.”

Sankara highly recommends the course, saying “It's the kind of course that students from any major can enjoy and succeed in as long as they make an effort to learn and participate. Also, Dr. Hamby is a very patient and understanding professor who treats all of her students with respect and kindness.” So, if you are interested in learning more about pest management, sustainable food production and the health of our planet, consider registering for BSCI487 when it is offered next. The course is acceptable toward Biological Specialization Areas: ECEV and GENB (Ecology, Behavior & Organismal category) and the Entomology minor.

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Department of Entomology 
University of Maryland 
4112 Plant Sciences Building 
College Park, MD 20742-4454
USA

Telephone: 301.405.3911 
Fax: 301.314.9290
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  • About
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    • Diversity, Equity, and Inclusion >
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  • Research
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    • Insect Identification
    • Pesticide Education and Assessment Program
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