Bringing Biodiversity Back

Tag: Brassica

Oregon Canola Saga 2.0 (2019 ed.)

Let’s start at the beginning…

Back in 2012 the Oregon Department of Agriculture (ODA) threatened to abolish the longstanding canola exclusionary zone in the Willamette Valley. We fought back, with your help, to get legislation passed by the state which funded additional research and included a sunset clause on the canola restrictions in the valley. Here’s a good summary of why canola is problematic for specialty seed production and where we stood in the winter of 2013 from Oregon’s Agricultural Progress by Gail Wells, Canola In The Valley.

HB2427

Oregon HB2427 was passed by the Oregon Legislature in 2013 and the resulting research conducted by Oregon State University (OSU) was presented in 2017. It’s a whooping 105 pages and you can read the whole thing if you like here (the Executive Summary and Recommendations are pages 6-11 of the PDF). In the interest of getting to the point, here are the highlights.

Is canola uniquely problematic? OSU says No.

OSU researchers determined that under current cultural practices in the Willamette Valley there were no unique disease, pests, weed, or cross pollination problems associated with canola. Meaning that turnip and radish have just as many problems as canola and since we don’t currently regulate those crops, why would we limit or regulate canola specifically.

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Beating Black Leg on Brassicas

No FOMO* for Phoma

There are plenty of things about Oregon’s Willamette Valley that are worthy of FOMO, or the *Fear of Missing Out. We have mild winters, fertile soils, & natural beauty abounds. Phoma lingam, however, is not FOMO-worthy. Since 2014, the Willamette Valley has been hit with Phoma lingam, aka Black Leg, a fungal disease that affects all species of Brassica family plants including kale, cabbage, turnips, & many other important food crops, as well as many common weeds such as wild mustard. Black leg causes stunted growth, girdling of the stem, & can lead to great reductions in yield & sometimes plant death. It is estimated that around 10,000 acres of Willamette Valley brassicas were infected in 2014, & similar numbers may have been infected in 2015.

Phoma lingam at leaf spot stagePhoma lingam lesion at base of stem Phoma lingam stem cankers

What is being done about it?

The disease is thought to have come in on infected seed, & so in response the Oregon Department of Agriculture (ODA) has passed an administrative rule requiring all Brassica seed that will be planted in the Willamette Valley in quantities over 1/2 oz, to have been tested from a qualified, approved laboratory, and to be treated for the disease, even if the test results are negative.

At Adaptive Seeds, seed quality is a priority & we are committed to providing seeds that exceed our customers’ expectations. Even though most of our Brassica varieties are not sold in packages over 1/2 oz, we have decided to test  all of our Brassica seed lots, & all of the test results so far have been negative. At this point, we are not treating any of our seed prior to sale.

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