An important part of being a Master Gardener is staying current on the latest horticultural science.  With that in mind, OSU Extension has developed a webinar series to supplement other classes you may have taken this year.  This year, the webinars will focus on Integrated Pest Management (IPM) and each topic is presented by OSU experts.  Remember, you need at least 10 hours of approved education by October 31 to be recertified.  Each webinar in this series is approved for 1 hour of continuing education.

What is a webinar?  A webinar is a seminar that is presented over the internet.  The presenter(s) will show slides and photos while they are speaking on their topic.  There is a chat box to enter your questions.  Each webinar will be ~40 minutes long and followed by a moderated Q&A session.

How do I participate? Click on the graphic below which will open a PDF.  Then you can click on the links for more details and to register.  There is no cost to participate.  If you can’t attend the live webinar, a recording will be available at a later date.


This material was presented at the Oregon Master Gardener Association’s 2016 Mini-College.  

Microgreens are easy and fun to grow. They are great for garnishing sandwiches and salads.  Microgreens can be also be used in classroom settings to teach botany (and grow a snack!).   In this presentation, I covered:

  • The difference between sprouts, microgreens and baby greens
  • The uses for microgreens
  • How to grow in soil and hydroponically (Handout from class)
  • Troubleshooting common problems

During the talk, I refer to a published paper that discussed the health profiles of different microgreens.  You can view the entire paper here.  Keep in mind that the amount of total amount of published research on microgreens is small.  Most research has focused on growing & handling methods to avoid food borne illness or extend shelf-life.

When purchasing seeds, it is most economical to purchase in bulk.  You can find seeds locally at garden centers or online retailers.  Johnny Seeds is one possible resource.  They have a great catalog with color photos that compares growing characteristics and flavor descriptions.

Here is a shortened version of my presentation (complete slide set):


Slides & Resources from 6/18/2016 presentation in Lane County for the Home Orchard Management class series.  This presentation focuses on the fundamentals of pest & disease management for home orchard production.  Emphasis is on IPM and introducing Extension resources.

Slide set:  Slide deck (online show at Slide Share)


Cultivar Susceptibility to select diseases from PNW Disease Handbook (Apple, Cherry, Hazelnut, Pears)

OSU Extension publication: Managing Diseases & Insects in Home Orchards

OSU Extension catalog: Fruit & Nuts category

Online Phenology & Degree-day Models

PNW Handbooks (Diseases, Insects, Weeds)


Slides and resources from my presentation to the OSU Extension Multnomah County Master Gardeners.  Covered an overview of climate change and how that can affect the phenology of garden plants as well as changing pest pressures.

Slide deck:

Oregon Forests & Climate Change blog:

Citizen Science on Plant Phenology:

Gardening in the Global Greenhouse (from UK scientists): Summary  Full Text

Follow-up on audience questions (if I missed one, just click ‘leave a reply’ above)

Is there a list of ash tree alternatives? Choose anything but ash (Fraxinus sp.) to avoid loss to Emerald Ash Borers.  Good general source of information:  Local training from OSU Extension on potential invasive insects affecting trees:

What to spray to treat Azalea Lace Bug? Robin Rosetta with the OSU Extension Nursery IPM program has indicated that the nymphs are emerging.  This stage in the life cycle is especially vulnerable to contact insecticides (this is different from the systemic insecticide that the questioner mentioned).  Labeled insecticidal soaps and neem-based products may be a good choice.  Good coverage of the underside of leaves will be necessary.

Recent change in USDA Hardiness zones-does that indicate global warming? “Climate changes are usually based on trends in overall average temperatures recorded over 50-100 years. Because the USDA PHZM represents 30-year averages of what are essentially extreme weather events (the coldest temperature of the year), changes in zones are not reliable evidence of whether there has been global warming.”  From: