Tag Archives: Weeds

Resistant Weed Testing is Available for the 2023 Field Season

Posted on April 27, 2023 by Sean Westerveld

By: Kristen Obeid, OMAFRA Weed Management Specialist Resistant weeds are becoming the new norm in weed management for many Ontario farmers.  This is a reminder that genomic resistant weed testing will be available again at no cost to the grower … Continue reading →

Posted in All Specialty Crops, Culinary, Ginseng, Ginseng Pest Management, Herbs, Hops, Hops Pest Management, Industrial and Misc. Crops, Industrial Hemp, Specialty Fruit and Nuts, Specialty Grains, Specialty Vegetable Pest Management, Specialty Vegetables, Sweet Potato, Sweet Potato Pest Management | Tagged , , , , | Leave a comment

Ginseng Crop Update – Nitrogen Fertilization – June 17, 2022

Posted on June 17, 2022 by Sean Westerveld

The ginseng crop is progressing normally this year after several years of spring cold temperature and frost damage. This should reduce pressures of foliar diseases. As temperatures warm, the added stress could lead to higher Alternaria pressures over the next … Continue reading →

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Funding Available to Continue Testing Herbicide-Resistant Weeds

Posted on March 11, 2022 by Sean Westerveld

By: Kristen Obeid, OMAFRA Weed Management Specialist – Horticulture Funding is available for producers, agri-business, consultants and extension personnel to submit weed samples to be tested for herbicide resistance again this year.  Sample collection kits with sampling procedures can be … Continue reading →

Posted in All Specialty Crops, Ginseng, Ginseng Pest Management, Herbs, Hops, Industrial and Misc. Crops, Industrial Hemp, Specialty Fruit and Nuts, Specialty Grains, Specialty Vegetables, Sweet Potato | Tagged , , , , | Leave a comment

Control of Scentless Chamomile in Ginseng

Posted on October 19, 2021 by Sean Westerveld

Growers are reporting increasing issues dealing with scentless chamomile in ginseng, which has become a problem weed in many crops. Scentless chamomile (Matricaria perforata), also known as scentless mayweed, is a short-lived perennial or sometimes annual, closely resembling stinking mayweed, … Continue reading →

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Poast Ultra Herbicide Registered for Use on Basil

Posted on October 28, 2020 by Sean Westerveld

By Jim Chaput, Minor Use Coordinator, OMAFRA The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for POAST® ULTRA Herbicide for control of labeled weeds on basil (fresh and dried) in Canada. … Continue reading →

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Waterhemp: A Spreading Invasive Weed in Ontario and Canada

Posted on April 23, 2020 by Sean Westerveld

Kristen Obeid1, Peter Sikkema2, Christian Willemse2, Nicole Langdon2, David Westerveld 2, Marie-Josée Simard3, Martin Laforest3, David Miville4 and Tammy Jones5 Waterhemp (Amaranthus tuberculatus var. rudis) is a relatively new weed in Canadian agriculture cropping systems1. It has been suggested that … Continue reading →

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