- Author: Kathy Keatley Garvey
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. He will cover the spotted wing drosophila and the brown marmorated stink bug.
"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.