Silvia I Rondon
Associate Professor, Extension Entomologist

IPM, Biological Control, Insect Ecology, Integrated Pest Management

Hermiston Agricultural Research and Extension Center
Department of Crop and Soil Science
2121 South 1st Street
Hermiston, OR 97838-0105
United States
(541) 567-6337


The goal of my research program is to develop and implement cost-effective reduced-risk Integrated Pest Management (IPM) practices for irrigated crops in eastern Oregon, including potatoes, onions, corn, wheat, etc.  This goal is achieved through the integration of population dynamics studies, understanding insect behavior, and implementing biological and chemical control  methods.  My extension program delivers IPM information to growers, crop consultants, field experts, and  public in general following "one to one" approach, and developing on-farm demonstration trials, presentations, trainings, workshops, and extension publications.



PhD - 2002 - Crop Sciences, University of Illinois at Urbana-Champaign

M.S.- 1999 - Entomology, Universidad Nacional Agraria la Molina, Lima, Peru

B.A. - 1993 - Biology (Zoology), Universidad Nacional Agraria la Molina, Lima, Peru


Echegaray, E.R., S.I. Rondon, and P.B. Hamm. 2015. Assessment of potato psyllid Bactericera cockerelli (Hemiptera: Triozidae) and zebra chip disease in four commercial potato varieties in the Columbia Basin. Am. J. Pot. Res. (In print)

Cating, R.A., S.I. Rondon, and P.B. Hamm. 2015. High fidelity PCR improves the detection of “Candidatus Liberibacter solanacearum” in potato tubers. Am. J. Pot. Res.  (In print).

Wiman, N., V. Walton, P.W. Shearer and S.I. Rondon. 2014. Electronically monitored probing activity of brown marmorated stink bug, Halyomorpha halys, in simulated environments. PLoS ONE 9(12): e113514.

Murphy, A.F., R. Cating, A. Goyer, P.B. Hamm, and S.I. Rondon. 2014. First report of natural infection  by “Candidatus Liberibatcer solanacearum’” in bittersweet nighshade (Solanum dulcamara L.) in the Columbia Basin of eastern Oregon. Plant disease note 05-14-0497PDNRI. Plant disease Journal 98(10) 1425.

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.

Akhtari, M., F. Dashti, H. Madade, and S.I. Rondon. 2014. Evaluation of resistance to onion thrips (Thrips tabaci Lind.) in several Tareh Irani (Persian leek: Allium ampeloprasum Tareh group) landraces. Arch. Phyto. Plan. Protection. 47(1) 29-41.

Swisher, K.D., G.S. Venkatesan, J. Dixon, J.E. Munyaneza, A.F. Murphy, S.I. Rondon, B. Thompson, A.V. Karasev, E.J. Wenninger, N. Olsen, and J.M. Crosslin. 2014. Assessing potato psyllids haplotypes in potato crops in the Pacific Northwest United States. Am. J. Po. Res. 91:485-491.

Bag, S., S.I. Rondon, K.L. Druffel, D.G. Rileyand H.R. Pappu. 2014. Seasonal dynamics of thrips (Thrips tabci) transmitters of Iris yellow spot virus, a serious viral pathogen of onion bulb and seed crops. J. Econ. Entomol. 107 (1): 75-82. Role: research, design; co-wrote manuscript.

Murphy, A.F., S.I. Rondon, R. Marchosky, J. Buckham and J. Munyaneza. 2014. Evaluation of beet leafhopper transmitted virescence agent damage in the Columbia Basin. Am. J. Pot. Res. 91 (1): 101-108. DOI 10.1007/s12230-013-9335-y. Role: design experiment, co-wrote manuscript, PI grant.

Pantoja, A., D.S. Sikes, A.M. Hagerthy, S.Y. Emmert, and S.I. Rondon. 2013. Ground beetle (Coleoptera: Carabidae) assemblages in the Conservation Reserve Program crop rotation systems in interior Alaska. Ent. Soc. Brit. Columbia 110: 6-18. Role: collaborator larger ground beetle project, co-wrote manuscript.

Rondon, S.I., A. Pantoja, A. Hagerty, and D.A. Horneck. 2013. Influence of farming transition systems on ground beetles (Coleoptera: Carabidae) communities. Fla. Entomol.  96 (4): 1492-1499. Role: research design; wrote manuscript.

Swisher, K.D.,  V.G. Sengoda, J. Dixon, E. Echegaray, A.F. Murphy, S.I. Rondon, J.E. Munyaneza, and J.M. Crosslin. Haplotypes of the potato psyllid, Bactericera cockerelli, on the wild host plant, Solanum dulcamara, in the Pacific Northwestern United States. 2013. Am. J. Pot. Res. 90(6): 570-577. Role: co-design field experiment; co-wrote manuscript.

Mansouri, S.E., S.A. Asghar Fath, G. Nouri-Ganbalani, J. Razmjou, B. Naseri, and S.I. Rondon. 2013. Screening of Iranian potato germplasm for resistance to the potato tuberworm Phthorimaea operculella (Lepidoptera: Gelechiidae). Am. J. Pot. Res. 90(6): 533-540. Role: advice research design, co-wrote manuscript.

Rondon, S.I., C. Brown, and R. Marchosky.  2013. Screening for resistance of potato germplasm to the potato tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae). Am. J. Pot. Res. Feb. 2013, Volume 90, Issue 1, pp 71-82. DOI 10.1007/s12230-012-9278-8.

Corp, M.K., S.I. Rondon, and S.M. Van Vleet. 2013. Insect identification educational volunteers created in train the trainer workshops in Oregon and Washington. J. Exten. 51: 3.

Murphy A.F., S.I. Rondon, and A. Jensen. 2013. First report of potato psyllids, Bactericera cockerelli, overwintering in the Pacific Northwest. Am. J. Pot. Res. 9 (3): 294.  Online 10.1007/s12230-012-9281-0.

Rondon S.I. 2012. Building an Integrated Pest Management for potatoes in North America: where to start?. Vth Balkan Symposium on Vegetables and Potatoes. Internat. Soc. Hort. Sci. A. Balliu and N. Gruda (eds.). Acta Hort. (ISHS) 960:371-384.

Murphy A., S.I. Rondon, and A. Jensen. 2012. Population dynamics of the beet leafhopper (Hemiptera: Cicadellidae) in the Columbia Basin as Influenced by abiotic variables. Environ. Entomol. 41(4): 768-775. 

Crosslin J.M., P. Hamm, J.E. Eggers, S.I. Rondon, V.G. Sengoda, and J.E. Munyaneza. 2012. First report of zebra chip disease and “Candidatus Liberibacter solanarum” on potatoes in Oregon and Washington State. Plant Disease 96(3): 452. Role: co-wrote manuscript.

Crosslin J.M., S.I. Rondon, and P.B. Hamm. 2012. Population dynamics of the beet leafhopper in northern Oregon and incidence of the Columbia Basin potato purple top phytoplasma.  89: 82-88. Role: PI grant, research, co-wrote manuscript.
DOI 10.1007/s12230-011-9223-2 (2011)

Landolt P., D. Roberts, M.K. Corp, and S.I. Rondon. 2011. Trap response of Dargida terrapictalis (Buckett) (Lepidoptera: Noctuidae) to a sex attractant in wheat growing areas of eastern Washington and neighboring Oregon. J. Kansas Entomol. Soc. 84(2): 139-147. Role: co-PI grant, co-research, co-wrote manuscript.

Clough G.H., S.I. Rondon, S.J. DeBano, N. David, and P.B. Hamm. 2010. Cultural practices to control the potato tuberworm. J. Econ. Entomol. 103(4): 1306-1311. Role: co-PI grant, supervised design, co-research, co-wrote manuscript.

Medina R.F., S.I. Rondon, S.M. Reyna, and A.M. Dickey. 2010. Population structure of the potato tuberworm Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae) in the United States. Environ. Entomol. 39(3): 1037-1042. Role: co-PI grant, supervised design, research, co-wrote manuscript.

Rondon S.I. 2010. The potato tuberworm: a literature review of its biology, ecology, and control. Amer. J. Pot. Res. 87: 149–166. Role: invited review paper.

Rondon S.I. and L. Xue. 2010. Practical techniques and accuracy for sexing the potato tuberworm, Phthorimaea operculella (Lepidoptera: Gelechiidae). Fla. Entomol. 93(1): 113-115. Role: PI grant, research, wrote manuscript.

DeBano S.J., P.B. Hamm, A. Jensen, S.I. Rondon, and P.J. Landolt.  2010. Spatial and temporal dynamics of potato tuberworm (Lepidoptera: Gelechiidae) in the Columbia Basin of the Pacific Northwest. J. Econ. Entomol. 39(1): 1-14. Role: co-research, co-PI; co-wrote manuscript.

Rondon S.I., D. Hane, C.R. Brown, M.I. Vales, and M. Dŏgramaci. 2009. Resistance of potato germplasm to the potato tuberworm (Lepidoptera: Gelechiidae).  J. Econ. Entomol. 102(4): 1649-1653. Role: PI grant, co-design, research, wrote manuscript.

Arthurs S.P., L.A. Lacey, J.N. Pruneda, and S.I. Rondon. 2008. Field evaluation of a granulovirus (PoGV) and Bacillus thuringensis subspecie kurstaki for season-long control of the potato tuber moth, Phthorimaea operculella Zeller. Entomol. Exp. Appl. 129(1): 276-285. Role: co-research, co-wrote manuscript.

Dŏgramaci M., S.I. Rondon, and S.J. DeBano. 2008. The effect of soil depth and exposure to winter conditions on survival of the potato tuberworm Phthorimaea operculella (Lepidoptera: Gelechiidae). Entomol. Exp. Appl. 129(1): 332-339. Role: PI grant, supervised design, co-research, and analysis; co-wrote manuscript.


Outreach and Extension

Extension Research: My appointment is 75% extension and 25% research. I am interested in developing an Ecological Based-Integrated Pest Management (IPM) program in various crops. My area of expertise encompasses biological control, insect biology, ecology, and population dynamics; both basic and applied (field and greenhouse production). Crops I have worked with include potato, sweet potato, asparagus, cotton, corn, soybean, alfalfa, wheat, strawberry, and vegetables. My major responsibilities as an Extension Entomologist at OSU are to attend emergencies in irrigated crops such as potatoes, grasses, onions, carrots and others in Eastern Oregon.

Fun Fact

Honors, Awards, and Certifications:

2013 OSU Faculty internationalization program. International program.

2012 OSUEA Dale and Alice Hoecker Family Award. To Bugs4 kids program. Oregon State University Extension Association.

2012 OSU Spring Professional Developmental Award. To attend the XXIV International Congress of Entomology in Daegu South Korea. Oregon State University, Extension Service.

2012 OSU Spring Professional Developmental Award. To attend the 2012 outreach and engagement spring training, faculty forum, awards presentation. Oregon State University, Extension Service.

2012 Pacific Brach of the Entomological Society of America Award for Excellence in Extension. Entomological Society of America.

2012 WSU CAHNRS Team Excellence Award. PNW-Veg Group. Washington State University Extension. 

2011 IPM Team Award. “The Pacific Northwest Potato tuberworm team”. Entomological Society of America Pacific Branch. Plaque. S.I. Rondon, S.J. DeBanno, G.H. Clough, P.B. Hamm, A. Jensen, L. Lacey, M. Dŏgramaci.

2010 Award for Outstanding Leadership in Education programming “A train-the trainer IPM short course: lessons learned”. Oregon State University Extension Association.

2010 W2185 Award for Excellence in Research. Western Association of Agricultural Experimental Station Directors.

2010 Oregon State University Extension Award. OSUEA Newer faculty achievement award.  

2010 Potato Association of America Outstanding Extension Project Award: The Potato Tuberworm Team. Alphabetic order: S. Arthurs, C. Brown, S.J. DeBano, M. Dogramaci, G.H. Clough, P.B. Hamm, D.C. Hane. A. Jensen, L. Lacey, S.I. Rondon, I.M. Vales.

2010 NACAA Search for Excellence in Sustainable Agriculture. National Association of County Agricultural Agents. M.K. Corp, S.I. Rondon, S. VanVleet, C. Marhsall. 

2007 Savery Outstanding Young Faculty Award. Oregon State University, College of Agricultural Sciences.

2007 James and Mildred Oldfield/E.R. Jackman Team Award. Potato Tuberworm Team, Hermiston Agricultural Research & Extension Center, G.H. Clough, S.J. DeBano, S.I. Rondon, N.David & D.Hane. Oregon State University, College of Agricultural Sciences.