Employee Directory

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Man Yeon Choi
Courtesy Appointment
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Research interests are focused on insect neurohormones, receptors, RNAi, and chemical ecology to develop novel pest managements and to understand biological questions.

  1. Development of RNA inference (RNAi)-based insecticide to protect small fruits and nursery crops.
  2. ...
George Hoffman
Research Associate
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Integrated Pest Management, crop pollination, slugs, mites, blue orchard bees (Osmia)

Louisa Hooven
Assistant Professor (Senior Research)
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John Lambrinos
Associate Professor
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We are beginning to understand that interactions between landscape elements underlie many of the important issues we face as a human society. I am fascinated by the ecological processes that tie landscapes together.

  • On-farm habitat restoration.
  • Habitat for beneficial...
Gail Langellotto
Professor, Urban and Community Horticulture Extension, Statewide Master Gardener Program Coordinator
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The ecology of urban and suburban landscapes remains relatively unexplored - although such habitats have great potential to positively contribute to the conservation of pollinators, parasitoids and the ecosystem services that they confer. 

Working with the OSU Extension Master...

Jana Lee
Courtesy Appointment
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Stuart Reitz
Professor and Extension Faculty, Cropping Systems
(541) 881-1417
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Responsible for Extension and Research programming related to cropping systems in Malheur County.

Silvia Rondon
Professor & Extension Entomologist Specialist
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IPM, Biological Control, Insect Ecology, Integrated Pest Management.

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. ...

Robin Rosetta
Associate Professor, Extension Entomologist
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  • Nursery/greenhouse integrated pest management
  • Biological control implementation
  • Management of honeylocust pod gall midge and root weevils
  • Current research areas include borers in nursery production and management of rose midge


Ramesh Sagili
Associate Professor-Apiculture
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To promote sustainable apiculture and pollination, our research program focuses on three prime areas: (1) honey bee health (2) honey bee nutrition and (3) honey bee pollination. Our research program addresses both basic and applied questions to improve honey bee health and...

Vaughn Walton
Professor, Horticultural Entomologist
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  • Entomology
  • IPM
  • Biorational pest control agent
  • Biological control
  • Small fruit and tree nut crops

I work on economically important pests, with the aim to provide environmentally sustainable and minimal impact pest management...

Nik Wiman
Assistant Professor
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Nik Wiman is a postdoctoral associate working on the Brown Marmorated Stink Bug (BMSB), Halyomorpha halys. This insect is an invasive pest that poses a major threat to Oregon specialty crops. His projects include state-wide surveys for BMSB, evaluation of natural enemies of...

Faculty Research Assistant
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Carolyn Breece
Faculty Research Assistant
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Daniel Dalton
Graduate Student
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Primary responsibilities include:

  • Research on biological aspects of Drosophila suzukii;
  • Examination of biological control agents that may impact Drosophila suzukii populations;
  • Investigation of cultural controls against Drosophila...
Jessica Green
Senior Faculty Research Assistant I
Research Support
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Entomology, Vegetable IPM

Weed Management

Richard Hilton
Senior Faculty Research Assistant II, Ag Entomologist
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  • Development and implementation of methods for pear pest management in certified organic orchard systems.
  • Mating disruption and microbial controls for major pest species.
  • Conservation of natural enemies.



Betsey Miller
Instructor, Ecampus and Research Assistant, IPM (Walton Lab)
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I teach an undergraduate course in entomology. My goal in teaching entomology to non-entomologists is to provide insight into a group of organisms that is largely ignored. The vast and varied world of insects impacts human society more than we think.

My IPM research work...

Carol Mills Contact person by email

Bio Science Research - Entomology

Insect Identification

Alexzandra Murphy
541-567-6337 x105
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I am a native of Hermiston Oregon and am currently working on the economic threshold for the beet leafhoppers in potatoes in the Columbia Basin. Beet leafhoppers vector a phytoplasma, known as beet leafhopper-transmitted virescence agent (BLTVA) that causes purple top disease in potatoes.


Directory of other affiliated facutly

Associated Faculty
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Leonard Coop
Assistant Professor (Practice), Associate Director of the Integrated Plant Protection Center
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I support 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. I am Assoc....

Sandra DeBano
Associate Professor of Wildlife Ecology
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My research focuses on how human activities affect terrestrial invertebrate communities and the ecosystem services they provide, with a special interest in riparian and grassland ecology, food webs, native bees, and invertebrate predators. 

Current projects involve examining the effects...

Joseph DeFrancesco
Assistant Professor, Sr. Research
(541) 737-0718
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Extension IPM, Small fruit

Gwendolyn Ellen
Coord-Conservation BioControl
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Farmscaping for Beneficials

Jadwiga Giebultowicz
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Paul Jepson
Professor, Environmental and Molecular Toxicology
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  • Integrated pest management, including pesticide application, efficacy, drift management and ecological risk management
  • Population level risk assessment, particularly the importance of scale, landscape factors and long-term population processes
  • Applications of basic ecology...
Hang-Kwang Luh
Assistant Professor (Sr Res)
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Research Data Interface

David Lytle
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David Madison
Faculty Research Assistant
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I will be working to improve the Pacific Northwest shellfish industry by exploring a sustainable method to combat larval mortalities caused by the pathogen Vibrio coralliilyticus.

Christopher Marshall
Mgr-Collection Curator
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Peter Mc Evoy
Professor, Emeritus
541-737-5507 x8371
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Ecology and Evolution of Plant-Insect Interactions, Ecology and Biological Control of Invasive Plant Species, Conservation of Plants and Insects

Description of Research

The research in my laboratory focuses primarily on the ecology of invasive plant species...

Andrew Moldenke
Courtesy Appointment
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Darrell Ross
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David Shaw
Associate Professor
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David Wooster
Associate Professor of Fisheries
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My research interests would be stream ecology, aquatic invertebrate biology, restoration effectiveness monitoring, stream food webs, stream and riparian linkages.