Wheat School – Spotting Herbicide Resistant Wild Oats

Herbicide resistant wild oats are pretty easy to identify, says Neil Harker, a research scientist in weed ecology and crop management at Agriculture and Agri-Food Canada’s Lacombe Research Centre.

“You generally see them in patches. If you see [wild oats] in real straight lines, then you suspect a sprayer error, but if you just see them in little patches out there, you…can often assume — at least in Alberta — that they’re going to be resistant.”

Related: What’s the Most Cost Effective Way to Control Wild Oats?

Preventing herbicide resistance involves diversity in crop rotations and chemical active ingredients. Once a farmer has confirmed herbicide resistance, herbicides the plant is susceptible to can be applied, or non-chemical practices considered. According to Harker, scientists in Alberta are looking at management practices besides the Harrington seed destructor, like chaff management.

“We’re not burning chaff yet, like they’re doing in Australia, but that’s very effective and when you’re in a desperate situation that can work well too.”

In the following interview, Jason Stroeve explores herbicide resistant wild oats with Harker, discussing identification, prevention and the danger of relying on new technologies.


RealAgriculture Agronomy Team

A team effort of RealAgriculture videographers and editorial staff to make sure that you have the latest in agronomy information for your farm.


Wheat prices jump into August — This week in the grain markets

This week, winter wheat prices touched a three-year high, but it didn’t last. Chicago SRW wheat prices for September 2018 gained 5 per cent or about 26 cents US/bushel to close at $5.56. While the December 2018 contract was up 5.4 percent — or nearly 30 cents — to finish a tad under $5.80. In…Read more »


Leave a Reply


This site uses Akismet to reduce spam. Learn how your comment data is processed.