AgronomyTaking on Herbicide Resistance

    Taking on Herbicide Resistance


    Preventive measures can control the spread of herbicide resistance, but when they stop working, the best tool is rapid detection. Dr. Martin Laforest, a weed scientist at Agriculture and Agri-Food Canada’s Saint-Jean-sur-Richelieu Research and Development Centre and his team have developed molecular tests that can detect the presence of herbicide resistance in less than two weeks using only leaves from the noxious plant.

    In Canada, weeds in vegetable crops cause tens of millions of dollars in losses every year. Being able to act swiftly is essential because each resistant plant that releases seeds creates a bank of resistance-carrying seeds in the soil. A zero-tolerance approach is needed: all plants that can resist a given herbicide must be eliminated.

    These genetic tests have been used in a research setting to characterize suspected resistance cases since 2015. This year, they moved to the field: the Laboratoire d’expertise et de diagnostic en phytoprotection of the Quebec Department of Agriculture, Fisheries and Food (MAPAQ) now offers an herbicide resistance screening service to Quebec producers free of charge.

    Research is ongoing, and discussions are underway between MAPAQ and the Ontario Ministry of Agriculture, Food and Rural Affairs to allow the use of these markers in Ontario.

    Once they are widely known and used, these molecular tests may help slow the spread of herbicide resistance, promote the implementation of strategies to manage resistance, and limit the economic impact of herbicide resistance across Canada.

    Source: AAFC’s Agri-Info Newsletter: October 2018

    Trending This Week

    Potato field at Borden-Carleton, P.E.I.

    The P.E.I. Potato Industry is Edging Back to Normal

    After a year of upheaval following a potato wart discovery, P.E.I. has worked hard to regain their spud status. More than a year after potato...
    Centre pivot in P.E.I.

    P.E.I. Potato Board Calls on Feds to Listen to International Experts Report

    The Prince Edward Island Potato Board is calling on the federal government to listen to the findings from an international panel of experts who...
    Freshly emerged potato field

    Fortified Stimulate Yield Enhancer’s (aka Stimulate) Offers 40.4 cwt/acre Marketable Yield and Consistent Benefits

    Drumroll please…. The results are in from this year’s trials and – at a whopping 12.6 to 1 (!!) return on investment – Stimulate’s results...
    Manitoba Potato Production Days 2023 stage

    MPPD Celebrates 50 Years of Potato Memories

    Manitoba Potato Production Days (MPPD) kicked off its 50th anniversary celebration with an opening night reception followed by a full day of presentations, demonstrations...
    Potato field being sprayed

    PMRA Potato Products Review Refresher

    With the PMRA having reviewed numerous potato products, it’s important to keep track of what you can and can’t use anymore. Over the past few...