His talk is from 12:10 to 1 p.m. Hosts are assistant professor Joanna Chiu and distinguished professor Frank Zalom, Department of Entomology and Nematology.
Walton is the lead investigator for the Spotted Wing Drosophila Project.
"My work at OSU work focuses on resolving key entomological industry needs in the Pacific Northwest with current focus on spotted wing drosophila, brown mamorated stink bug, mealybugs and sustainable pest managment in hazelnut orchards," he said. "Previously I studied mites in Oregon vineyards."
"The aim of my work is to provide environmentally sustainable and minimal impact pest management strategies for agriculturalists in Oregon and further afield. This is done with knowledge obtained from detailed insect physiological, biological, behavioral, ecological and environmental studies. I have a strong focus to develop monitoring tools and determine economic and action thresholds. This knowledge is then used to apply treatments timed to occur during periods when pests are at their most vulnerable. I have knowledge and experience using alternative pest control methods including various modes of biological control, mating disruption and conventional synthetic pesticides. It is believed that use of a combination of these pest management strategies will minimize environmental impact and optimize sustainable agriculture."
Walton received his degrees from the University of Stellenbosch, South Africa. He obtained his bachelor's degree in botany and zoology in 1992; his master's degree in integrated pest management in 1998; and his doctorate in 2003.
He has served as an associate professor in the Department of Horticulture at OSU since 2012. He joined the OSU faculty in 2006, having earlier served as a postdoctoral researcher with the Department of Environmental Science, Policy, and Management, UC Berkeley.
He has written extensively about the brown marmorated stink bug, spotted wing drosophila and other pests. His list of refereed publications include:
Wiman, N.G., V.M. Walton, P.W. Shearer, S.I. Rondon, and J.C. Lee. 2014. Factors affecting flight capacity of brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae). J. Pest Sci. DOI:10.1007/s10340-014-0582-6.
Tochen, S., D. T. Dalton, N. G. Wiman, C. Hamm, P. W. Shearer, and V. M. Walton. 2014. Temperature-related development and population parameters for Drosophila suzukii (Diptera: Drosophilidae) on cherry and blueberry. Environ. Entomol. DOI: http://dx.doi.org/10.1603/EN13200.
Walton, V. M., 2014. CABI, Invasive Species Compendium, Brown Marmorated Stink Bug, Impacts: Original text by V. M., Walton. In: Invasive Species Compendium. Wallingford, UK: CAB International. www.cabi.org/isc.
Chiu J.C., Jiang X., Zhao L., Hamm C.A., Cridland J.M., Saelao P., Hamby K.A., Lee E.K., Kwok R.S., Zhang G., Zalom F.G., Walton V.M., Begun D.J. 2013. Genome of Drosophila suzukii, the Spotted Wing Drosophila. G3 (Bethesda). 9;3(12):2257-71. doi: 10.1534/g3.113.008185.
Lee, J. C., Shearer, P. W., Barrantes, L., Beers, E., Burrack, H., Dalton D. T., Dreves, A. J., Gut L. J., Hamby, K A., Havilland D R., Isaacs, R., Nielsen A. L., Richardson, T, Rodriguez-Saona C., Stanley, C. A., Walsh, D. B., Walton V. M., Yee, W. L., Zalom, F. G., and D J. Bruck, 2013. Trap Designs for Monitoring Drosophila suzukii (Diptera: Drosophilidae). Environ. Entomol. 42(6): DOI:http://dx.doi.org/10.1603/EN13148
Rossi Stacconi M.V., Grassi A., Dalton D., Miller B., Ouantar M., Ioriatti C., Walton V., Anfora G. 2013. First field records of Pachycrepoideus vindemmiae (Rondani) (Hymenoptera Pteromalidae) as a parasitoid of Drosophila suzukii in European and Oregon Small fruit production areas. Entomologia 2013 1; 11-16
Walton V.M., Dalton D.T., Daane K. M., Kaiser C. and Hilton R. J. 2013. Seasonal Phenology of Pseudococcus maritimus (Hemiptera: Pseudococcidae) and Pheromone-Baited Trap Survey of Four Important Mealybug Species in Three Wine Grape Growing Regions of Oregon. Ann Entomol Soc Amer 106(4): 471-478.
Gadino A. N., Walton V. M. and J. C. Lee, 2012. Evaluation of methyl salicylate lures on populations of Typhlodromus pyri (Acari: Phytoseiidae) and other natural enemies in western Oregon vineyards. Biological Control, 2012, 63, 1, pp 48-55.
Lee J. C., Burrack H. J., Barrantes L. D., Beers E. H., Dreves A. J., Hamby K., Haviland D. R., Isaacs R., Richardson T., Shearer P., Stanley C.A., Walsh D. B, Walton V. M. and F. G. Zalom 2012. Evaluation of monitoring traps for Drosophila suzukii (Diptera: Drosophilidae) in North America. J. Econ Entomol. 2012, 105, 4, pp 1350-1357.
Miller B., Bruck D. J., Walton, V. M., 2012. Relationship of Black Vine Weevil Egg Density and Damage to Two Cranberry Cultivars. HortSci 47(5): 1–7.
Gadino A. N, Walton V. M., 2012. Temperature-related development and population parameters for Typhlodromus pyri (Acari: Phytoseiidae) found in Oregon vineyards. Exp Appl Acarol 2012, 58, 1, pp 1-10.
Chambers U., Walton V.M. and S. A. Mehlenbacher 2011. Susceptibility of Hazelnut Cultivars to Filbertworm, Cydia latiferreana. HortSci 46: 1377-1380.
Gadino A. N., Walton V. M. and J. Lee. 2011. Olfactory response of the predatory mite Typhlodromus pyri (Acari: Phytoseiidae) to methyl salicylate in laboratory bioassays. J Appl Entomol DOI 10.1111/j.1439-0418.2011.01670.x
Daane K. M., Middleton, M. C., Sforza, R., Cooper, M. L., Walton, V. M., Walsh, D. B., Zaveio, T., and R.P.P. Almeida. 2011. Development of a multiplex to distinguish mealybug species found in North American vineyards. Environ Entomol. DOI: http://dx.doi.org/10.1603/EN11075.
Dalton D.T., Walton V.M., Shearer, P.W., Walsh, D.B., Caprile J. and R. Isaacs. 2011. Laboratory survival of Drosophila suzukii under simulated winter conditions of the Pacific Northwest and seasonal field trapping in five primary regions of small and stone fruit production in the United States. Pest Manag Sci 67(11): 1368-1374.
Gadino A. N., Walton V. M. and A.J. Dreves. 2011. Laboratory bioassays to determine impact of six pesticides on the beneficial arthropod, Typhlodromus pyri (Scheuten) (Acari: Phytoseiidae). Econom Entomol 104(3): 970-977.
Walsh D.B., M.P. Bolda, R. E. Goodhue, A. J. Dreves, J. Lee, D. J. Bruck, V. M. Walton, S. D. O'Neal and F. G. Zalom. 2011. Drosophila suzukii (Diptera: Drosophilidae): Invasive Pest of Ripening Soft Fruit Expanding Its Geographic Range and Damage Potential. J Integ Pest Mngmt 2(1): 1-7.
Walton's seminar is the first in the fall seminar series. The complete schedule is on the website.
Preto, a former foster care youth, is an incredible success story who hurdled the obstacles heaved in her path and lets nothing—absolutely nothing--block her education, enthusiasm, research or goals.
She turned a disadvantaged childhood into a college diploma, and a college diploma into graduate school.
“I'm the first in my family to graduate from college and to attend graduate school,” said Preto, who calls Los Angeles “home.”
In June, UC Davis awarded her a bachelor's degree in viticulture and enology with an entomology minor in agricultural pest management. Now she's studying for her master's degree in entomology with major professor and integrated pest management specialist Frank Zalom, distinguished professor in the UC Davis Department of Entomology and Nematology.
“I first met Cindy in my Entomology 110 class, Arthropod Pest Management,” Zalom recalled. “She was usually the last student to leave the diagnostic labs each week, and one time she apologized to me for staying so long. She said that she had been out of school and working for a while so she wanted to get the most out of her classes.”
“She was a viticulture and enology major,” Zalom said. “We discussed having her do an undergrad research project on grapes, so she applied for and received a MURALS (Mentorship for Undergraduate Research in Agriculture, Letters and Science) scholarship which allowed her to conduct a project in my lab.”
Her project? The development of the invasive European grapevine moth. Preto conducted her research in the Contained Research Facility on campus with co-advisors Spencer Walse and Dave Bellamy of the USDA's Agricultural Research Service. Like Zalom, they praised her “excellent work ethic and enthusiasm.”
On Saturday, Sept. 27 Preto will represent the Zalom lab at the Bohart Museum of Entomology's open house on “How To Be an Entomologist” from 1 to 4 p.m. in Room 1124 of the Academic Surge Building on Crocker Lane.” She'll show visitors what leafhoppers and parasitized eggs look like.
“I am currently doing a biological survey of Virginia Creeper leafhopper in vineyards, looking at the population dynamics of all life stages, egg, nymphs, and adults,” Preto said.
The Virginia Creeper is one of three leafhoppers that she's studying in her population dynamics research. The others are the Western grape leafhopper and the Variegated leafhopper. They're all about the same size: 2 millimeters. In rearing eggs from nymphs to adults, she knows the distinguishing characteristics of each.
Zalom admires her enthusiasm, commitment and professionalism. “I was not seeking another grad student, but I couldn't help but accept Cindy into my lab when she decided that she would like to pursue a master's degree,” Zalom recalled. “Her project on leafhoppers associated with grapes fits her goals of working again in the grape industry when she completes her degree. Her enthusiasm for learning hasn't changed, and her research has been proceeding very well.”
Indeed it has. She's also drawing widespread attention as a scholar. She received a Peter J. Shields Scholarship in September 2011; a Wine Spectator scholarship in September 2012; the MURALS research scholarship in November 2012; a Syngenta Scholarship, June 2013; a Wine Spectator Scholarship in October 2013; and an Orange County Wine Society Scholarship in October 2013.
Preto also participates in the new UC Davis program, Guardian Professions Program or GPP, which is open to Masters/Ph.D students who are former foster care youth. And, she continues to participate in the Guardian Scholars Program or GSP, open to all UC Davis students who were cared for in foster homes. GSP students offer support for one another and also to current and former foster care youth in local high schools and community colleges by offering UC Davis campus tours, outreach, interactive activities, and speaking on panels to share their story in hopes of encouraging former foster care youth to seek higher education.
A world traveler, she has journeyed to all seven continents, all 50 states, and to 59 countries. "It can be inexpensive," she said. Along the way, she's taken scores of images of insects.
Preto takes a multi-disciplinary approach to not only her research but life in general, eager to know, learn and share. She figuratively skips to work, excitedly looking forward to new entomological finds. She's recorded and photographed not only leafhoppers, but assassin bugs, minute pirate bugs, stink bugs, lace bugs, mites, thrips, damselflies, dragonflies, moths, bees, wasps, spiders (jumping spiders and black widows), whiteflies and praying mantids.
When Preto is not out in the field monitoring insects, you'll usually find her reading about them or studying them in the lab—weekends included. “It's extremely fascinating,” she said.
Her career goal? To work for a vineyard in a pest and disease management position, preferably in an organic grape or sustainable vineyard. Another goal: to receive her Pest Control Adviser license.
“I love it,” she said.
Integrated management specialist Frank Zalom, president of the 7000-member Entomological Society of America (ESA), and a distinguished professor in the UC Davis Department of Entomology and Nematology, delivered two presentations at the 25th Brazilian Congress of Entomology (BCOE) conference held Sept. 14-18 in the Goiania Convention Center.
As the ESA president, he invited the BCOE participants to attend the 62nd annual ESA meeting, set Nov. 16-19 in Portland, Ore. The theme is “Grand Challenges Beyond Our Horizons.”
Also at the Brazilian meeting, Zalom presented a talk on the North American invasion of the spotted wing drosophila, Drosophila suzukii, during a symposium on invasive insects.
Christian Nansen, the newest faculty member of the UC Davis Department of Entomology and Nematology, also was an invited speaker, discussing "The Use of Remote Sensing Technologies in Basic and Applied Research of Insect Pests in Production Systems of Grains and Fibers." He joins the UC Davis faculty from the School of Animal Biology, University of Western Australia.
Chemical ecologist Walter Leal, professor in the UC Davis Department of Molecular and Cellular Biology and co-chair of the 2016 International Congress of Entomology (ICE 2016), delivered the plenary lecture and a talk on ICE 2016. He invited the Brazilian Congress to attend ICE 2016, set Sept. 25-30, 2016 in Orlando, Fla. It promises to be the world's largest gathering entomologists, he said.
This was the first time in the history of entomology that an ESA President, vice president and the two most recent past presidents attended a Brazilian Congress of Entomology
Also a first: the Brazilian meeting featured an EntomoQuiz, a version of the Linnaean Games, a quiz-show competition about science and insects featured at the ESA annual meetings for more than three decades.
Among the other ESA representatives participating at the Brazilian meeting were
- ESA Vice President Phil Mulder, professor and head of the Department of Entomology and Plant Pathology, Oklahoma State University
- ESA Past President Grayson Brown, professor of entomology and director of the Public Health Entomology Laboratory, University of Kentucky's Department of Entomology
- ESA Immediate Past President Rob Wiedenmann, head of the Department of Entomology at the University of Arkansas
- ESA Executive Director David Gammel
In the third photo below (the template does not allow the full description) are:
Walter Leal of UC Davis, co-chair of ICE 2016; Eliane Quintela, presidente of the XXVth Brazilian Congress of Entomology; Antonio Panizzi, past president of the Sociedade Entomological do Brasil (SEB) [or Entomological Society of Brasil (SEB)], Frank Zalom of UC Davis, ESA President, Phil Mulder of Oklahoma State University, ESA vice president; Pedro Neves, SEB president; David Gammel (behind), ESA executive director; Grayson Brown of the University of Kentucky, ESA past president; and Rob Wiedenmann of the University of Arkansas, ESA immediate past president.
Karban, who studies volatile (chemical) communication between plants that affect their defenses against herbivores, will speak from 8:10 to 8:45. He is one of four speakers booked from 7 to 9 p.m.
The event, free and open to the public, begins at 6:30 with socializing and networking. It is sponsored by the UC Davis Art/Science Fusion Program.
Other speakers are
- Tami Spector, a professor of organic chemistry at the University of San Francisco, whose topic is “The Molecular Elusive”
- Katharine Hawthorne, a San Francisco-based dancer and choreographer, “Analog Bodies” and
- Cody Ross, a postdoctoral cultural and statistical anthropologist working at the Santa Fe Institute and UC Davis. “Art Is Offensive: Integrative Art and Social Justice.”
Karban drew international scientific and media attention with his research on “Kin Recognition Affects Plant Communication and Defense,” published in February 2013 in the Proceedings of the Royal Society B: Biological Sciences. He and four colleagues showed that kin have distinct advantages when it comes to plant communication, just as “the ability of many animals to recognize kin has allowed them to evolve diverse cooperative behaviors,” he told the UC Davis Department of Entomology and Nematology in a news release.
“When sagebrush plants are damaged by their herbivores, they emit volatiles that cause their neighbors to adjust their defenses,” Karban said. “These adjustments reduce rates of damage and increase growth and survival of the neighbors.”
Karban was featured in Michael Pollan's piece on “The Intelligent Plant: Scientists Debate a New Way of Understanding Plants,” published last December in The New Yorker.” He is also spotlighted on YouTube.
A member of the UC Davis Department of Entomology and Nematology since 1982, Karban received his bachelor's degree in environmental studies from Haverford (Pa.) College, and his doctorate in biology from the University of Pennsylvania, Philadelphia.
He is a fellow of the American Association for the Advancement of Science (AAAS) and has published more than 100 journal articles and two books.
Tami Spector, professor of organic chemistry at the University of San Francisco, will speak from 7 to 7:25 p.m. on “The Molecular Elusive.” She was trained as a physical organic chemist. Her scientific work has focused on fluorocarbons, strained ring organics, and the molecular dynamics and free energy calculations of biomolecules. Spector also has a strong interest in aesthetics and chemistry and has published and presented work on molecular and nano- aesthetics, the visual image of chemistry, and the relationship between chemistry and contemporary visual art. She serves on the governing and editorial boards of Leonardo/ISAST, co-hosts the San Francisco based Leonardo Arts Sciences Evening Rendezvous' (LASERs), and serves as the co-editor of an ongoing special section “Art and Atoms” for Leonardo Journal.
Katharine Hawthorne, a San Francisco based dancer and choreographer who makes live performances about thinking bodies in motion, will speak on “Analog Bodies” from 7:25 to 7:50. “How can analog signals and old technologies can be used as metaphors for understanding the body, and in
Cody Ross, now a postdoctoral cultural and statistical anthropologist working at the Santa Fe Institute and UC Davis, will speak on “Art Is Offensive: Integrative Art and Social Justice” from 8:40 to 9 p.m.
Ross works on projects concerning intergenerational wealth transmission and the persistence of economic inequality. His work, both academic and artistic, is targeted toward inspiring deeper discourse about issues related to social justice.
“This talk focuses on the intersection of Art (subjective) and Science (objective), with Activism/Justice/Justness (intersubjective),” Ross says in his abstract. “We use several of my own art pieces and performances to think through the ways in which integrative, socially, conscious art can provide a way of representing scientific knowledge in a manner that is intuitively digestible, and piercing. I especially focus on the offensiveness of art, both in the way: 1) an art piece at first glance can shock us and put us in a place of discomfort at what we are witnessing, which can move us out of the routine comfort we might feel with the injustices going on around us, and 2) the way art can be offensive (like the offence of a sports team) in the pursuit towards establishing a more just world. Art need not be relegated to illustrating the beautiful, instead by illustrating the horrific, it can inspire towards the realization of the beautiful in our world.
The UC Davis Art/Science Fusion Program was co-founded by entomologist/artist Diane Ullman and artist Donna Billick. Ullman is a professor and former chair of the UC Davis Department of Entomology (now Entomology and Nematology) and a former associate dean for undergraduate academic programs, College of Agricultural and Environmental Sciences. Billick is a self-described "rock artist" who has degrees in art and science (genetics). She retired from UC Davis earlier this year as a course instructor with the UC Davis Art/Science Fusion Program but continues her art.
It's inexpensive, holdable, and very much alive.
Texas Gold-Banded millipedes (Orthoporus ornatus). They're new and permanent residents of the museum's “petting zoo” and they're ready to be observed or held, said Lynn Kimsey, director of the Bohart Museum and UC Davis professor of entomology.
“They're a great addition to the museum's petting zoo,” Kimsey said. “They are very gentle and great for demonstrations of how millipedes walk and how they differ from centipedes.”
Millipede enthusiast Evan White, who does design and communications for the Robert Mondavi Institute for Wine and Food Science, and is a frequent presenter at the Bohart's open houses, recently obtained the arthropods from a collector in Texas. “Texas Gold-Banded millipedes are naive to many of the Southwestern United States, not just Texas,” he said.
White was initially looking for the African giant millipedes (Archispirostreptus gigas) but these are not only expensive but no longer imported.
“I suggested that the Bohart Museum consider a native, and a much smaller species. In fact, native species are the only millipedes readily available, and they're much less expensive. The Texas Gold-Banded millipedes are easily bred and are a hardy species that will make a large colony.”
For the price of one A. gigas, Whiteobtained 15 millipedes, a mix of both males and females.
The 15 millipedes arrived at the Bohart Museum, 1124 Academic Surge on Crocker Lane, at the end of August. During the unpacking, White and is colleagues observed the millipedes mating. “Evidently they waste no time,” White quipped.
Millipedes are one of the largest, and most colorful species on the North American continent, White said. They make great displays, do well in captivity, and seem to breed readily, all desirable qualities in a pet or display animal.
Contrary to popular belief, millipedes are not dangerous. “There is much public confusion about the difference between millipedes and centipedes--not because the two look similar, but because the terms are used interchangeably when not connected to a visual,” White said.
He described millipedes as non-venomous, and relatively slow moving, with cylindrical bodies, two pairs of legs per body segment, and herbivorous. “In fact, they are more like decomposers – they do well on rotting vegetation, wood, etc.--the scientific word for is ‘detritivore.' Most millipedes are toxic if consumed, some even secrete a type of cyanide when distressed. The point being: don't lick one.”
In contract, centipedes are venomous, fast-moving insects with large, formidable fangs, and one pair of legs per body segment. “They are highly carnivorous, although some will eat bananas. Go figure. And they are often high-strung and aggressive if provoked.”
What makes millipedes special--and particularly the Texas Gold-Banded millipedes?
“Personally, I am a big admirer of how they look, almost mechanical, like a metal conduit or something,” he said. “Couple that with the wave ripple of leg movement and I can't get enough of how they look.”
“Generally, there many thousands of types (Wikipedia lists 12,000 named species) which range in size, shape and color from nearly a foot long and black, to only an inch long and bright red. There are round ones, long thin ones, flat ones, spiky ones and nearly every combination in between. They are remarkable critters.”
White estimates the life span at five to six years or more. “In captivity, they do well on squashes, leafy greens, the occasional fruit, and, from time to time, damp/rotting cork.”
Visitors can see the millipedes during the Bohart Museum's regular hours, from 9 a.m. to noon and 1 to 5 p.m. Mondays through Thursdays, and at the weekend open houses held throughout the academic year. The first of nine open houses, free and open to the public, will take place Saturday, Sept. 27 from 1 to 4 p.m. The theme is "How to Be an Entomologist.”
The insect museum is located in Room 1124 of the Academic Surge building, Crocker Lane, off LaRue Road.
At the Sept. 27th open house, plans call for UC Davis entomologists to show and explain their work, said Bohart Museum director Lynn Kimsey, professor of entomology, UC Davis Department of Entomology and Nematology.
"We will have a pinning and butterfly and moth spreading ongoing workshop with Jeff Smith and tips on how to rear insects," said Tabatha Yang, the Bohart Museum's education and outreach coordinator. Smith, an entomologist in Sacramento, is a longtime donor and volunteer at the Bohart. "It will be very hands-on."
Representatives from the labs of molecular geneticist Joanna Chiu, assistant professor; bee scientist Brian Johnson, assistant professor; ant specialist Phil Ward, professor; insect demographer James Carey; and integrated pest management specialist Frank Zalom, distinguished professor and current president of the 7000-member Entomological Society of America will share their research.
The Johnson lab will provide a bee observation hive, and Cindy Preto of the Zalom lab will be sharing her research on leafhoppers. The Carey lab will show student-produced videos, including how to make an insect collection, and one-minute entomology presentations (students showcasing an insect in one minute). The Ward lab will be involved in outside activities, demonstration how to collect ants. Entomology students will be on hand to show visitors how to use nets and pitfall traps and yellow pans.
The Bohart Museum, founded by noted entomologist Richard M. Bohart (1913-2007), is the home of nearly eight million insect specimens. It houses the seventh largest insect collection in North America, and the California Insect Survey, a storehouse of the insect biodiversity.
Special attractions include a “live” petting zoo, featuring Madagascar hissing cockroaches, walking sticks and tarantulas. Visitors are invited to hold the insects and photograph them.
The museum's gift shop (on location and online) includes T-shirts, sweatshirts, books, jewelry, insect-collecting equipment and insect-themed candy.