People

Silvia Rondon, Director, Oregon IPM Center

Silvia Rondon is the Oregon IPM Center director and Professor and Extension Entomology Specialist at Oregon State University in the Department of Crop & Soil Sciences. She received her BA and MS in Entomology from the Agraria University in Lima, Perú, and PhD in Crop Sciences with a major in Entomology and Integrated Pest Management (IPM) from the University of Illinois at Urbana-Champaign. In 2002, she worked as a Postdoctoral Associate at the University of Florida Horticulture Department. In Sept-2005, she joined Oregon State University. Her position description includes Research and Extension and she has managed her Irrigated Agricultural Entomology Program relying on external funding coming from private, international, state, and federal grants. Her area of expertise is IPM with emphasis in insect ecology, insect distribution, population dynamics, insects-plant interactions, biological control, insect-plant pathogens interactions, and chemical control. She has been involved working with multiple commodities groups including potatoes, grass seed, wheat, and high valuable vegetables including onions, sweet corn, and carrots. She has over 123 peer reviewed scientific and extension papers, 9 book chapters, 146 non-peer reviewed publications, and multiple abstracts, and reports. She is an active member of the Entomological Society of America where she is a member of the Division, Equity and Inclusion task force and past Award committee chair; she led the organization of the first Latino/Hispanic Symposium in her professional society, now on its 9th year.


Brittany Barker, Assistant Research Professor

Brittany earned her PhD in Biology at the University of New Mexico and obtained a B.S. in Zoology at Oregon State University. She uses bioinformatic tools to study how animal and plant population dynamics are influenced by environmental changes resulting from climate change, land use, fires, and invasive species. Her current research focuses on supporting agriculture by developing climate driven models for several invasive insect pests. Before joining the Oregon IPM Center in 2019, she  worked as an Ecologist with the USGS Forest Rangeland and Ecosystem Science Center (FRESC) in Boise, Idaho, and completed a competitive postdoctoral fellowship in the Ecology and Evolutionary Department at the University of Arizona. You may learn more about her work at brittanysbarker.org.  


 

Len Coop, Associate Professor of Practice, Associate Director of the Oregon IPM Center

Len supports agriculture in general by developing and placing online, weather and climate driven models for numerous areas including IPM/pest models, plant disease risk models, crop models, horticultural models, beneficial species models, climate suitability models, and others. Len is the Associate Director for Decision Support Systems at the Oregon IPM Center and Director of the website USPEST.ORG.


Alice FormigaAssistant Professor (Practice)

Alice holds M.S. in Library and Information Science from the University of Washington. She is an Assistant Professor of Practice in the Department of Horticulture and is the Executive Director of eOrganic, which publishes peer-refereed science-, experience- and regulation-based information on organic farming and research from across the U.S.  Prior to joining OSU in 2009, she worked for seed companies and on organic farms in the United States and Germany.  Alice joined the OIPMC in September, 2024 to assist with grants and outreach.


Jessica Green, Senior Research Assistant

Jessica obtained her M.S. In Horticulture from Oregon State University in 2011, which focused on biological weed control in agronomic systems. She produces our monthly newsletter and conducts regional pest monitoring and pesticide research trials in vegetable and specialty seed crops. Jessica is particularly interested in pest dynamics and how agricultural producers can utilize IPM to predict and protect against crop loss. 


Judith HerreidResearch Associate

Judith Herreid is an entomologist interested in helping foster resilient agroecosystems that benefit producers while minimizing negative environmental impacts. She holds a PhD in Plant Sciences from the University of Wyoming and an M.S. in Entomology from the University of California, Riverside. She has a broad range of experience working with insect pest management in both industry and research settings. Before joining the Oregon IPM Center, she examined biological control in wheat and alfalfa systems as a postdoctoral researcher with the USDA Agricultural Research Service. In her present position, as a postdoctoral scholar for Dr. Brittany Barker, her research focuses on the rosette weevil (Ceratapion basicorne), a potentially critical biocontrol agent in protecting natural landscapes from a problematic noxious weed, the yellow starthistle.


Thomas A. Jima, IPM Educator

Thomas holds M.S. in Plant Biology specializing in Plant Pathology from Swedish University of Agricultural Sciences (SLU), Sweden and M.S. in Entomology from Addis Ababa University (AAU), Ethiopia. He received his B.S. in Plant Sciences from Alamaya University, Ethiopia. He has over 10 years of experience in agricultural development, research, project management, capacity building, and stakeholder management with an emphasis on plant protection and integrated pest management (IPM). Before joining OIPMC, Thomas was a Senior Plant Protection Advisor at SNV Netherlands Development Organization, providing technical support and capacity building to adopt IPM, good agricultural practices (GAP) and safer and responsible use of pesticide to horticulture farmers, government partners and the private sector.


 

Signe Danler,  Home Horticulture Online Program Instructor

A veteran Master Gardener and landscape designer, with an MAg degree in Horticulture from OSU, and an emphasis on Urban Horticulture. As instructor for the OSU Extension Service online Home Horticulture and Master Gardener Program, I use my experience and training in gardening, urban forestry and ecological landscaping to communicate about and promote sustainable gardening and landscaping practices. Both personally and professionally, I enjoy educating people in how to apply ecological and restorative principles to landscape design and management. I also develop science-based Integrated Pest Management (IPM) material for the SolvePestProblems website.


Paola Sotelo-Cardona, IPM Educator

Paola holds a B.S. in Biology from Universidad del Valle (Cali, Colombia), a M.S. in Agricultural Sciences-Plant Breeding from Universidad Nacional de Colombia (Palmira, Colombia), and a PhD in Entomology from Kansas State University. Prior to joining the OIPMC she worked as Scientist-Entomology at the World Vegetable Center (HQ Taiwan) providing technical support and capacity building on safe and sustainable vegetable production strategies in various countries, including, East and West Africa, India, Taiwan, and Thailand. She also worked for the Colombian Corporation of Agricultural Research (AGROSAVIA) in Colombia and completed a postdoctoral fellowship in the Applied Entomology group at the Swiss Federal Institute of Technology (ETH) in Switzerland. Her research interests include biology and ecology of insect pests; integrated pest management; host plant resistance; research methodologies in entomology and plant breeding; application of statistical methods to insect ecology; and chemical ecology of plant-insect interactions.  Her publications are available here.

 

 

 

Affiliated Staff and Partners

Sam Angima, Assistant Dean for Outreach and Engagement and former interim Director of Oregon IPM Center

Aaron Becerra-Alvarez, Assistant Professor, Weed science in vegetables and specialty seed crops

Christopher J. Marshall, Associate Professor (Practice), Curator and Collections Manager, Oregon State Arthropod Collection

Kaci Buhl, Associate Professor of Practice, Pesticide Safety Education Program Director

Mana Ohkura, Professor of Practice and Director of the OSU Plant Clinic

Virginia Balbi, Bi-lingual PSEP Outreach Coordinator, Pesticide Safety Education Program 

Victor Hugo Vidal Ribeiro, Assistant Professor Crop and Soil Sciences

 


Current Students

Abigail Johnson

My name is Abigial Johnson and I am majoring in Ecology. I love hiking, camping, and anything to do with plants. I deeply care about the environment and want to do research to help our understanding of our world and our place in it. I am very excited at the opportunity to be working on a research project where I get to directly make positive change. Abigail is supervised by Dr. Brittany Barker (2025-current).

 

Charlie Ricci 

My name is Charlie Ricci (they/them) and I'm a third-year student in ecological engineering. Growing up in-between Hawaii and the Pacific Northwest has given me a wholehearted passion for the ever-complex ecosystems around us as well as an appreciation of our need to protect these systems for our own good. I am honored to play my part in protecting our ecosystem while getting to work with my favorite bugs (weevils)! Charlie is supervised by Dr. Brittany Barker (2025-current).

 

Calix Pryor

Calix Pryor (they/them) is a third-year student working towards a degree in Sustainable Horticulture with a minor in Entomology. Calix is performing monitoring of pests and beneficials throughout the Willamette Valley. In their free time they enjoy drawing, cello, and tomato breeding for cold tolerance and trellis-free growth. They are seeking to explore the valuable place that insects hold in agricultural systems and, through plant breeding, further support eco-systemically based sustainable production.

 

 Kyleah Rabe

My name is Kyleah Rabe and I love the great outdoors. I am majoring in biology and minoring in Spanish. I enjoy hiking, swimming, dancing, sewing, and art. I have always loved the so-called creepy crawlies, and as a child, you could almost always find me holding an insect of some sort. I fell extra in love with insects during the time I spent raising Leila, my leaf insect. This internship immediately caught my attention, as it gave me an opportunity to further explore the amazing world of insects, and I am so excited to begin this journey! Kyleah is supervised by Jessica Green and Silvia Rondon (2023-current).

 

Emma Slone

Emma Slone is a student working towards earning a degree in Bioresource Research with a minor in Environmental Science. Emma is currently working on monitoring population dynamics of insect pests throughout the Willamette Valley. Emma is supervised by Jessica Green and Dr. Seth Dorman, USDA-ARS (2022-current).

 

 

Kalli Schoening

Kalli Schoening is a first year Master’s student in Crop and Soil Science focusing in Entomology. She earned her B.S. in Evolutionary Biology from Eckerd College. Kalli is researching the corn rootworm complex in Western Oregon. Specifically, she is concentrated on species distribution, population dynamics, and host plant preferences of these pests. Her work contributes to the development of integrated pest management strategies and predictive monitoring tools for our regional cropping systems. Kalli is advised by Silvia Rondon.


Former Oregon IPM Center Faculty & Staff

Note: In 2020, OSU's Integrated Plant Protection Center (IPPC) was renamed and reorganized as the Oregon IPM Center (OIPMC). This article has more information.

  • Britnny Jones, former PSEP Educator for Communities, Pesticide Safety Education Program.
  • Chris Hedstrom, former OIPMC's Outreach Coordinator and produced the OIPMC newsletter. He also served as the State IPM coordinator. Chris is now working in private industry.
  • Isaac Sandlin, former Crop Pest Loss Impact Assessments and Pest Management Strategic Developer.
  • Gwendolyn Ellen, former  Farming for Beneficials & Functional Agriculture Biodiversity Programs Coordinator.
  • Hans Luh, former OIPMC Database Development Manager.
  • Carrie Preston, former Research Associate.
  • Ebba Peterson, former IPM Educator.

 

Oregon IPM Center Undergraduate Researchers

  • Hayley Husby (Fisheries & Wildlife); 2022
  • Caroline Manzano (Zoology); 2022