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Continuing Education OSU Webinars for MG Recertification

The items below are recommended for Master Gardeners.  

2019 Webinars

Any 3 modules count toward LCMGA recertification

Upcoming live webinars in 2019

  • Update on Sudden Oak Death in the Pacific Northwest
    Presented by: Sarah Navarro (Oregon Department of Forestry) and Norma Kline (OSU Extension)
    January 29, 11am PT
    Details & pre-registration info:

  • Demystifying Grafted Tomatoes: The Why & How for Gardeners
    Presented by: Dr. Cary Rivard (Kansas State University)
    March 15, 11am PT
    Details & pre-registration info:

2018 Webinars

Any 3 modules count toward LCMGA recertification.  Recordings from 2018 webinars:

Participants will learn the basics of identification of slug and snail species in home landscapes. Dr. Mc Donnell will cover current IPM strategies and also share his recent research findings on novel management methods.

Probably best known for making our squash leaves white, powdery mildew is an ever-present plant disease in the home garden. Dr. Jay Pscheidt will take us to the microscopic level to understand the biology of the fungi that cause powdery mildew and provide practical advice to manage this common nemesis in our gardens.

Join OSU Extension Wildlife Specialist, Dr. Dana Sanchez, as we learn to identify the common deer species in the Pacific Northwest, explore deer behavior, and understand the different ways deer utilize our gardens and landscapes. Dr. Sanchez will share ideas for conflict management techniques including resources for deer-resistant plants.

Concerned about recent food safety issues associated with fresh produce? Sara Runkel (OSU Extension) will help you understand how to minimize the risks related to specific edible garden practices such as composting, water sources, harvesting and more. You will learn practical tips that can be shared with community and school gardens and be better equipped to answer questions from the public.

Join Robin Rosetta (OSU Department of Horticulture and OSU Extension) for an introduction to emerging pest issues such as rose stem girdler, European chafer, and daylily gall midge. You will learn basic biology, identification, and how to recognize damage . Learn how and where to make reports of unusual insect activity. Additional resources will be provided to supplement this session.

In this behind-the-scenes peek, research entomologist Dr. Gail Langellotto (OSU Department of Horticulture) will share results from the OSU Garden Ecology Lab. Gail will discuss her team’s latest findings in garden bee research including the species of bees that visit home gardens, attractiveness of different genera of native plants, and practical tips for building gardens for bees.

In this ‘first look’, Aaron Anderson (Ph.D. student in the OSU Department of Horticulture) will be introducing his research on gardening with native plants. Under the direction of Dr. Gail Langellotto, Aaron is researching native plants that support ecosystem services; that gardeners find attractive, and that they would want.

  • "Weed Management in the Garden & Landscape: Understanding Herbicides" Kaci Buhl (OSU Extension) focuses on understanding how herbicides work, how to choose the 'right' herbicide, debunking myths, and sharing safe application techniques. Resources for further reading are shared.

2017 Webinars

Any 3 modules count toward LCMGA recertification

Recordings are available for these  2017 Oregon Master Gardener Advanced Training webinars:

In 2016, Japanese beetles were trapped in high numbers in the Portland area. The Oregon Department of Agriculture is working to eradicate Japanese beetle hot spots in Portland, and OSU Extension is helping with outreach, identification, and management information for this potential pest.   


Boxwood blight continues to be a problem in more landscapes and nurseries in the PNW. Learn about where this fungal disease has moved to, how to recognize it from other disease problems and run a model to determine when it might show up. Master gardeners are our first responders to help limit the impact of this threat to our boxwood plantings.     

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