Dr. Luisa Santamaria was recently featured in the Capital Press! Read it here


The Healthy Plants and Bilingual Education Program combines a passion for supporting and educating people with a curiosity and desire to explore the microbial world present all around us. We are dedicated to serving the nursery industry by engaging growers through personalized nursery visits, listening to their concerns and questions, and presenting science-based information on identifying and managing plant diseases. We also offer various plant health workshops and trainings throughout the year. Additionally, we conduct applied research on topics related to the industry’s needs. This ranges from disinfection of propagation material to fungicide efficacy in controlling Botrytis on geraniums. We are also fascinated by the biology and unique abilities of cyanobacteria and other microalgae that live in nursery recycling ponds. See below for a list of current projects!

We are thrilled to expand our outreach beyond the nursery industry. In 2012, we partnered with the Oregon Blueberry Commission to begin offering training in Food Safety for growers, contractors, and anyone responsible for teaching harvest workers about minimizing the risk of contamination in the field. We have produced educational tools, found below, that provide support for this important endeavor. The emphasis on excellent hygiene, cleaning, and sanitation to prevent the spread of human pathogens complements our same emphasis for plant disease management!

Let us know how we can support you and your organization in producing healthy plants! Contact us today by emailing maria.marlin@oregonstate.edu or luisa.santamaria@oregonstate.edu. Our services are available in English and Spanish.

Cyanobacteria in Nursery Pond Recycling Water

We are working to isolate native cyanobacteria from local nursery pond recycling water. Cyanobacteria are photosynthetic microorganisms that possess many amazing qualities, including nitrogen-fixation and uptake of heavy metals. Some cyanobacteria also produce chemicals that can antagonize plant pathogens. We are excited to identify our species and learn more about their biology and unique properties.

Cianobacterias en el agua de reciclaje de estanques de viveros

Estamos trabajando para aislar las cianobacterias nativas presentes en el agua de reciclaje de de viveros. Las cianobacterias son organismos fotosintéticos que poseen muchas cualidades sorprendentes, incluida la fijación de nitrógeno y la absorción de metales pesados. Algunas cianobacterias también producen sustancias químicas que pueden antagonizar a los patógenos de plantas. Estamos emocionados en identificar nuestras especies y aprender más sobre su biolog’ia y únicas propiedades.


Food Handling Safety "Train the Trainer"

This is a collaborative effort between OSU Extension’s Healthy Plants & Bilingual Education Program and the Oregon Blueberry Commission to create an awareness of good practices during the harvest season to prevent food contamination. These trainings take place in April and May.

To help trainers, we are proud to debut our new BILINGUAL Food Safety Training Manual! To order, please click here.

In addition, we have produce 5 FREE videos you can view and use at any time!!! Videos are in Spanish, with English subtitle options.

FSMA and the Produce Safety Rule

Education for growers about the new Food Safety regulations with focus on the Produce Safety Rule. For upcoming classes, please visit the Produce Safety Alliance.



Seguridad de Alimentos “Entrenando Entrenadores” 

Este es un esfuerzo de colaboración de Extensión y el Programa de Plantas sanas & Educación bilingue y la Comisión de Arándanos de Oregon para crear conciencia sobre las buenas prácticas durante la temporada de cosecha y prevenir la contaminación de los alimentos. Estos entrenamientos se llevan a cabo en abril y mayo.

¡Para ayudar a los entrenadores, estamos orgullosos de presentar nuestro nuevo Manual BILINGÜE de Capacitación en Seguridad de Alimentos! Para ordenar, por favor haga clic aquí.

¡Además, hemos producido 5 videos GRATIS que puedes ver y usar en cualquier momento! Los videos están en español, con opciones de subtítulos en inglés.

FSMA / Norma de Seguridad de Alimentos 

Educación para los productores sobre las nuevas regulaciones de Seguridad de Alimentos con enfoque en la Norma de Seguridad de los productos agrícolas frescos. Visite el sitio de ¨Produce Safety Alliance¨ en la red, para conocer cuando se ofrecen nuevas clases.



English to Spanish 

Español a Íngles

Pacific North West Pest Managment Handbooks

Program Contacts

Luisa Santamaria, Nursery Crops Extension Specialist- Plant Pathologist and Bilingual Educator

Maria Marlin, Faculty Research Assistant - Plant Pathologist