Best Management Practices for Master Gardener Plant Sales

Since mid-August, an advisory group consisting of myself, OSU Extension faculty (Brooke Edmunds), OSU MG volunteers (Linda Coakley and Ruth Estrada), and ODA Invasive Pest Professionals (Beth Myers-Shenai and Chris Hedstrom) have been working on developing guidance for best management practices for MG plant sales. This effort emerged as a result of increased awareness of how plant sales and plant swaps might serve as venues for invasive pest introduction or spread. Given the focus of the Master Gardener Program, we wanted to work together to do our part to stem the introduction spread of invasives, while delivering high quality plants to MG Plant sale customers.

THIS DOCUMENT is what our group has developed. As questions related to this document arise, I will start developing an associated FAQ list. Please let me emphasize, however, that the intention is not to police plant sales, but to provide guidance on how we can all work together to truly practice sustainable gardening.

FAQs (new questions and answers will be added, as soon as possible)

Q: How quickly must Master Gardeners adopt the best management practices?

A: Of the three recommendations, only the first (‘Apply for and receive a temporary nursery license from the Oregon Department of Agriculture’) is a legal requirement to host a short-term plant sale in Oregon. That recommendation must be adhered to, immediately (and should have been adhered to, in the past).

The other two recommendations (‘Only sell plants that are free from pests’; ‘Only sell plants that are properly identified, cross-checked against state and local noxious wee lists, and tagged’) should be adopted as soon as is practical for 2019 plant sales, but should become standard practice for plant sales in 2020, and beyond. For example, if a large part of your 2019 plant sale inventory consists of donated plants dug from home gardens, or another similar source, you are not expected to dispose of those plants. But, for plant sales in 2020 and beyond, Master Gardener groups should be proactively planning for a different approach to procuring plant materials for sale.

Q: How will these best management practices be enforced?

A: It is not my intention to act as the plant sale police. If I hear of reports of Master Gardener groups using practices that contradict the plant sale best management practices, I will reach out to the key organizers in an effort to raise awareness of the issue, and to strategize on how to remedy the situation.

Q: Can we take stem cuttings from plants grown in garden soil, if the plant is healthy and pest-free?

A: Yes.  As long as a cutting is from the above-ground portion of a healthy plant (inspected to be disease and pest free), then risk of invasive pest introduction and spread is minimized. Movement of soil poses the greatest risk, and thus root cuttings should not be taken.

August 2018 Statewide MG Program Update and Helpful Hints

Developing Best Management Practices for Master Gardener Plant Sales

The Master Gardener Best management practices task force met via conference call, last week. Our task force include Master Gardener volunteers who coordinate their Master Gardener Association plant sale, and have also operated a commercial nursery. The task force also includes the Oregon Department of Agriculture’s invasive species response coordinator, myself (as statewide Master Gardener Program coordinator), and Brooke Edmunds (as county MG faculty). Prior to working for OSU, Brooke worked with the Oregon Department Plant Health group, where part of her work involved certification of nursery plants. Thus, we have a lot of expertise in the group.

We will soon be surveying plant sale coordinators, to find out:

  • do you apply for an ODA temporary nursery license?
  • where do you get your plants for MG plant sales?
  • how and where are they propagated?
  • what are your concerns regarding changes to plant sale guidelines?

The goal of the survey is to get a general sense of what Master Gardener Associations are currently doing, to identify key areas of risk for invasive species introduction, and to provide guidance on how to transition to lower risk activities. Please keep an eye out for the survey, and share with your plant sale coordinators, when available.

We are also developing a draft list of best management practices for Master Gardener Plant sales, in cooperation with our Extension colleagues, volunteers, and nursery industry professionals. In the next 4-6 weeks, we expect to share this list of practices, as well as case studies of Master Gardener Associations that have successfully transitioned from higher risk to lower risk plant sale activities.

Please stay tuned!

Food Safety for Master Gardener Tasting Events (i.e. Tomato Tasting)

A question recently came in about how to approach an event such as a tomato tasting, to ensure safe food handling and food safety. I consulted with Jeanne Brandt, statewide coordinator of the OSU Extension Master Food Preserver Program, to get her feedback. Below is her response (edited for brevity).

My understanding is that sharing samples is part of educational programming, not food service, so that site or event licenses and food handler’s permits are not required.  Those come into play when any products are sold.  Providing samples for educational purposes is included in liability coverage offered by OSU, as long as best practices are used to prepare them. We put out a sign that says  “Products made/prepared by volunteers in our classroom or home kitchens.”  This makes booth visitors aware of where the products came from and that they are not commercial, so they can choose to sample or not.  

This resource has guidance for handling produce samples at public events:

https://www.fcs.uga.edu/docs/13_Keeping_Food_Safe_at_Market.pdf

Page 3 has some good guidelines for preparing samples.

Best practices are good hygiene, clean produce, and protection from contamination by the customers. That’s not as easy as it sounds,  since we are often places without handwashing stations.  Setting up individual samples so that customers can’t handle more than their own sample is ideal. 

Clients with Biting Bug Infestations, Without an Apparent Cause

Every now and then, a client comes into the Extension office, wanting advice for how to deal with insects that are biting them, or that have infested their house. After some conversation, or time to examine the sample that the client has brought into the office, you may determine that the client might be feeling a sensation on their skin, but that it is not due to an insect or mite issue. How do you help these clients? The cases are often heartbreaking: a client desperate for relief, with no apparent cause or solution in sight. Colleagues in extension published an excellent article on this topic, a few years ago, that includes a long list of recommendations for working with clients who believe their body and/or environment is infested with insects or mites, despite evidence to the contrary. Please read, and share with your Master Gardener volunteers, as needed.

Kerr et al. 2014. Recommendations for extension professionals and volunteers regarding individuals with delusional infestation. Journal of the NACAA 7(2).

Guidance for Master Gardener Plant Sales

As we head into Master Gardener plant sale season, it is a good time to remind Master Gardener Associations of the requirements to host a Master Gardener Plant Sale.

1) Master Gardener Associations need to fill out and file the temporary nursery license with the ODA. This will provide the ODA an opportunity to contact plant sale organizers (if needed), for sales in areas of concern.

2) Master Gardener plant sales can not include sale or distribution of (click on the link for more details):

3) Best practices dictate that Master Gardeners DO NOT MOVE SOIL. If plant sale plants are coming from personal gardens, remove the soil, wash the roots, and repot in commercial potting mix. We recognize this may be inconvenient but there are several exotic horticulture pests (snake worm, European chafer ~ see page 18) that currently have limited distribution in Oregon, and that can be moved through soil.

The Master Gardener teaches sustainable gardening. Modeling best practices in invasive species prevention is part of our work.