- Author: Kathy Keatley Garvey
"Kleptopharmacophagy, a newly described behavior recently observed in milkweed butterflies, is characterized by adult butterflies feeding on milkweed caterpillars. What type of alkaloids do the adult butterflies presumably gain as a result?"
That was one of the questions posed during the Entomology Games at the 2021 Entomological Society of America (ESA) meeting.
What's the answer? Pyrrolizidine alkaloids.
What, you ask, are the Entomology Games? A lively question-and-answer, college bowl-style competition on entomological facts played between university-sponsored student teams, as ESA says.
If you've ever been to the Entomology Games (formerly the Linnaean Games), you know how wonderfully educational and purely entertaining they are. Check out the list of YouTube videos in the championship matches. The 2018, 2016 and 2015 videos are there. The UC Entomology Games Team (UC Davis and UC Berkeley) won the nationals in 2018, and UC Davis in both 2016 and 2015.
Next month is the Pacific Branch, Entomological Society of America (PBESA) competition, with the championship team and runner-up team eligible to complete in the nationals.
The PBESA meeting takes place April 10-13 in the Hyatt Regency Sonoma Wine Country. Santa Rosa. The preliminary round is from 5 to 6 p.m., April 10. Plans are to hold three rounds with questions from each of the 10 categories: Biological Control, Behavior and Ecology, Economic and Applied Entomology, Medical-Urban-Veterinary Entomology, Morphology and Physiology, Biochemistry and Toxicology, Systematics and Evolution, Integrated Pest Management and Plant-Insect Interactions, History of Entomology, and Entomology in Popular Culture. (See 2021 sample questions.)
The final round is from 8 to 10 p.m., April 11. Then the top two PBESA teams will head to the nationals. The Nov. 13-16 ESA meeting n Vancouver, British Columbia is a joint meeting with the Entomological Society of Canada (ESC), and the Entomological Society of British Columbia (ESBC). The theme: "Entomology as Inspiration: Insects through Art, Science, and Culture."
Some of the questions asked at previous matches have involved the work entomologists affiliated with the UC Davis Department of Entomology and Nematology:
- Emerita Mary Lou Flint, a longtime leader of the UC Statewide Integrated Pest Management (UC IPM) Program and an Extension entomologist based in the department;
- Rebecca Godwin, who received her doctorate from UC Davis and is now an assistant professor of biology at Piedmont University, Demorest, Ga.; and Jason Bond, the Evert and Marion Schlinger Endowed Chair and associate dean, UC Davis College of Agricultural and Environmental Sciences.
- Robbin Thorp (1933-2019), distinguished emeritus professor known for his expertise on bumble bees, including Franklin's bumble bees, now feared extinct
Q. Mary Lou Flint's textbook, IPM in Practice; Principles and Methods of Integrated Pest Management, cites the management of what invasive plant, first introduced to North America from Europe, as an "excellent example of classical biological control in the Western US?" This plant was controlled by importing the European chrysomelid beetle Chrysolina quadrigemina.
A. Klamath weed / St. John's Wort / Hypericum perforatum
Q: In early 2021, (Rebecca) Godwin and (Jason) Bond described 33 new species of the trapdoor spider genus Ummidia, including a species named in honor of what alt-country singer-songwriter, who was the most-nominated woman at the 2019 Grammy Awards? She has had success both as a solo artist and as a member of the all-female supergroup The Highwomen, and her annual music festival "Girls Just Wanna Weekend" is held in Mexico near the type locality of her namesake trapdoor spider. Name this singer.
A: Brandi Carlile
Q: What bee species, only known from California and Oregon, was added to the Endangered Species List in September 2021?
A: Franklin's bumble bee (Bombus franklini)
How about some more questions?
Q. Earwigs are known for their maternal care, but the species Anechura harmandi goes above and beyond in its support. What describes the extreme contribution of A. harmandi mothers to the success of their offspring?
A: Matriphagy; the survival rate of the offspring is increased when they consume their mother after parental care is complete
Q: Halictid bees parasitized by the strepsipteran species Halictoxenos borealis were recently shown to exhibit unusual behavior when visiting flowers. The parasitized bees did NOT collect or eat pollen; they instead bent their abdomens downward and pressed them against the flower. According to the authors of this study, how did this behavior directly benefit the first-instar strepsipterans living in the bees?
A: Pressing the abdomen against the flower makes it easier for the mobile first-instar strepsipteran larvae to move onto the flower and wait for a new host bee to arrive
Q: Developed during World War II by USDA employee Samuel Gertler, what widely used chemical compound can be synthesized using the reagents diethylamine and meta-toluic acid?
A: DEET / diethyltoluamide / n,n-diethyl-meta-toluamide / n,n-diethyl-3-methylbenzamide
Q: Most contact insecticides are able to penetrate the insect exoskeleton because they contain a fat-soluble compound. What is the term for this type of chemical compound?
A: Lipophilic compound
Q: The solitary bee Eucera pruinosa (formerly in the genus Peponapis) is an efficient pollinator of what crop? There are multiple correct answers, but one of them is particularly appropriate, considering what day it is.
A: Pumpkins, cucumbers, squash, and other cucurbits
Q: Animals in the livestock, poultry and aquaculture industries often consume feed that has been supplemented by insect protein. This protein frequently comes from Hermetia illucens, a dipteran known by what common name?
A: Black soldier fly
Q: The leafcutter ant, Atta cephalotes, has hardened, distinctly sharpened mandibles that allow it to efficiently cut leaves. What mineral found in the mandibles provides this distinct sharpness? This mineral is also a metallic element with atomic number 30 on the periodic table.
A: Zinc
Q: What entomological acronym was used to refer to a group of American women who worked as auxiliary service pilots for the US during World War II?
A: WASP (Women Auxiliary Service Pilots)
Q: In 2018, Rachel Brosnahan won an Emmy for Outstanding Lead Actress in a Comedy Series, for playing a character with what dipteran nickname?
A: Midge (Miriam ‘Midge' Maisel from The Marvelous Mrs. Maisel)
Q: What British guitarist, who died in 2001, was memorialized by a pine tree planted in Los Angeles' Griffith Park? In an unfortunate, and somewhat ironic, development, the pine tree was later killed by an infestation of beetles.
A: George Harrison of The Beatles
Q: Keteoko is a traditional "honey feast" celebrated by the Enawene-Nawe people indigenous to the Brazilian Amazon. In order to collect large amounts of wild honey for the feast, the Enawene-Nawe have developed their own classification system, based on morphology, behavior, nest structure, and honey flavor, for identifying native species of what type of bee? Please answer with the common or scientific name of a tribe of Apidae.
A: Meliponini, stingless bees
Q: What insect family is essential for the production of iron gall ink? The ink is made using tannins extracted from oak galls, which are induced by larvae of this family.
A: Cynipidae
Did you get them all correct?
- Author: Kathy Keatley Garvey
Don't miss the UC Davis Bohart Museum of Entomology virtual open house on alfalfa and rice from 11 a.m. to noon on Thursday, Oct. 22.
Cooperative Extension agricultural specialist Ian Grettenberger, assistant professor, UC Davis Department of Entomology and Nematology, and his second-year graduate student, Madison "Madi" Hendrick, will discuss the crops, the pests, and the natural enemies or beneficials.
The good: Think the lady beetle, aka ladybug, that can devour some 50 aphids a day.
The bad: Think the larvae of the alfalfa butterfly, a major pest of alfalfa. Other pests of alfalfa include the Western yellowstriped armyworm, beet armyworm, and alfalfa weevil. Among the pests of rice: armyworms, aster leafhoppers, crayfish, rice leafminers, rice seed midges, rice water weevils and tadpole shrimp.
The bugly: Think all the arthropods--pests and natural enemies.
The event, "The Good and the Bad: Insects and Other Arthropods in Agriculture, with a Focus on California Rice and Alfalfa," will be live-streamed on the Bohart Museum of Entomology's Facebook page. (Link to Facebook live here). Grettenberger and Hendrick will present short talks and then field questions. No personal Facebook account is required to join the session, which is free and open to the public.
As Tabatha Yang, education and outreach coordinator of the Bohart Museum, says: "This is all about the arthropods, both the pests and beneficials that they study in the rice and alfalfa fields." Most of the focus is on insects, but tadpole shrimp in rice fields also will be discussed." A virtual family craft activity on rice is also planned.
"I will be discussing some of the insect (or arthropod) problems faced by growers of rice in California and some of the challenges in managing them, Grettenberger said. "In rice, some of the key arthropod pests are tadpole shrimp, which can turn what would have been a lush stand if rice into a poor stand with a lot of floating seedlings. Meanwhile, later in the year, armyworm caterpillars, the larvae of a moth, can chew on rice leaves and destroy plants. I'll discuss some of the ongoing work to better understand and manage these pests."
Grettenberger, Yolo County Farm Advisor Rachael Freeman Long and Madi Hendrick recently wrote a piece in the UC Agricultural and Natural Resources (UC ANR) blog, Alfalfa and Forage News, "A (Virtual )Update on Worms, Weevils an Aphids in Alfalfa."
The Bohart Museum, directed by Lynn Kimsey, UC Davis professor of entomology, is located in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis campus, but is temporarily closed. The museum houses nearly eight million insect specimens; a live "petting zoo" of Madagascar hissing cockroaches, walking sticks and taranatulas; and a gift shop stocked with insect-themed T-shirts, books, posters, jewelry, candy and insect-collecting equipment. (Gift items can now be shipped during the closure.)
More information on the Bohart Museum's virtual presentation is available on its website or by contacting Yang at tabyang@ucdavis.edu.
- Author: Kathy Keatley Garvey
The Bohart Museum of Entomology at the University of California, Davis, is hosting a virtual open house dealing with alfalfa and rice.
Cooperative Extension agricultural specialist Ian Grettenberger, assistant professor, UC Davis Department of Entomology and Nematology, and his graduate student, Madison "Madi" Hendrick, will discuss the crops, the pests, and the natural enemies or beneficials at a virtual Facebook live session from 11 a.m. to noon, Thursday, Oct 22.
Yes, this applies to you. If you're a scientist or would-be scientist, you'll want to know more about these agricultural crops and the issues. If you're a consumer and like rice and ice cream (dairy cows eat alfalfa and milk comes from ice cream, you have a stake in this.
The event, "The Good and the Bad: Insects and Other Arthropods in Agriculture, with a Focus on California Rice and Alfalfa," will be live-streamed on the UC Davis Bohart Museum of Entomology's Facebook page. (Link to Facebook live here). Grettenberger and Hendrick will present short talks and then field questions. No personal Facebook account is required to join the session, which is free and open to the public.
"I will be discussing some of the insect (or arthropod) problems faced by growers of rice in California and some of the challenges in managing them, Grettenberger said. "In rice, some of the key arthropod pests are tadpole shrimp, which can turn what would have been a lush stand if rice into a poor stand with a lot of floating seedlings. Meanwhile, later in the year, armyworm caterpillars, the larvae of a moth, can chew on rice leaves and destroy plants. I'll discuss some of the ongoing work to better understand and manage these pests."
Grettenberg's fields of expertise include field and vegetable crops; integrated pest management; applied insect ecology, and biological control of pests. (See Spotlight on Ian Grettenberger.) Among his current grants:
- Protection of rice from invertebrate pests
- Insecticide resistant alfalfa weevils in the western United States: Quantifying the scope of resistance and implementing a plan to manage the threat
- Management of key cotton arthropod pests with insecticides and acaricides, a proactive approach to prepare for the invasion of the tomato leafminer (Tuta absoluta) into California
- Detection, biology and control of the exotic Swede midge (Contarinia nasturtii) for California cole crops
- Management of the western spotted and striped cucumber beetle in melon production
- Biological control of the bagrada bug
- Insecticide resistance monitoring and evaluation of efficacy of current chemical tactics for managing aphids and thrips in lettuce
What sparked his interest in entomology? "I had biologist parents, and was drawn into entomology at a pretty young age," Grettenberger said. "I spent plenty of time looking in flowers and turning over logs looking for insects. Once I started thinking about going to graduate school for entomology, I decided to focus on the intersection of agricultural entomology and insect ecology. I wanted to work on applied issues in entomology."
Hendrick, a second-year graduate student in the Grettenberger lab, received her bachelor's degree in iInternational studies at North Carolina State University, and also spent a semester at Nagoya University in Japan (she minored in Japanese).
"I got my start in entomology completely by chance!," Hendrick related. "I needed a science credit and happened to pick a class called 'Insects and People.”' That class really helped me to reframe the way I thought about insects and appreciate what interesting little critters they are. Through that class, I was also able to get a job as an undergraduate assistant in an entomology lab. I worked in a specialty crops lab, where I developed interests in integrated pest management and invasive species. I now study insecticide resistance in the alfalfa weevil, and I'm excited to share what I've learned through this outreach event!"
Grettenberger, Yolo County Farm Advisor Rachael Freeman Long and Madi Hendrick recently wrote a piece in the UC Agricultural and Natural Resources (UC ANR) blog, Alfalfa and Forage News, "A (Virtual )Update on Worms, Weevils an Aphids in Alfalfa."
"This year, the Kearney Research and Extension Center Alfalfa and Forage Field Day went virtual," Grettenberger wrote. "Attendees did not get the chance to look out over lush fields of alfalfa or towering plantings of sorghum, but they get did an update on ongoing work in alfalfa and other forages. Our team put together a rapid-fire video to discuss what are typically the key insect pests in California alfalfa: summer worms, alfalfa weevils, and aphids."
The summer worms in alfalfa include the summer worms: Western yellowstriped armyworm, beet armyworm and alfalfa caterpillar. Another key pest is the alfalfa weevil. The trio also discussed aphids and their natural enemies, including lady beetles, aka ladybugs).
Pests of rice include armyworms, aster leafhoppers, crayfish, rice leafminers, rice seed midges, rice water weevils and tadpole shrimp.
The Bohart Museum, directed by Lynn Kimsey, UC Davis professor of entomology, is located in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis campus, but is temporarily closed. The museum houses nearly eight million insect specimens; a live "petting zoo" of Madagascar hissing cockroaches, walking sticks and taranatulas; and a gift shop stocked with insect-themed T-shirts, books, posters, jewelry, candy and insect-collecting equipment. (Gift items can now be shipped during the closure.)
More information on the Bohart Museum's virtual presentation is available on its website or by contacting Yang at tabyang@ucdavis.edu.
Resources:
- Alfalfa and Forage News: A (Virtual) Update on Worms, Weevils and Aphids in Alfalfa (By Ian Grettenberger, Rachael Freeman Long and Madi Hendrick, Sept. 20, 2020) (See video on same page)
- Alfalfa and Forage News: Natural Enemies Are Important for Control of the Aphid Complex in Alfalfa--A Case Study (By Ian Grettenberger, Rachael Freeman Long, Daniel Putnam and Rob Wilson, April 7, 2020)
- UC Statewide Integrated Pest Management Program: How to Manage Pests of Alfalfa
- UC Statewide Integrated Pest Management Program: Insects and Other Pests of Rice
