Category Archives: Ginseng Pest Management

Ginseng Crop Update – Avoiding “Heat” Stress – June 11, 2026

Posted on June 11, 2026 by Sean Westerveld

Rainfall has been highly variable over the past few days. Based on CoCoRaHS observations (https://maps.cocorahs.org/) and local rain gauges, rainfall ranged from 30+ mm from a line north of about Langton to Simcoe to 0 mm closer to Lake Erie, … Continue reading →

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Ginseng Crop Update – Frost and Pests – May 22, 2026

Posted on May 22, 2026 by Sean Westerveld

Weather, Frost and Disease Some areas have experienced frost damage, mostly during last week’s frost events. Most of the damage is confined to field edges and low areas. We used to think that damage along field edges was due to … Continue reading →

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Ginseng Crop Update – Early Season Pest Control – April 24, 2026

Posted on April 24, 2026 by Sean Westerveld

Temperatures have continued to be above normal despite the cool down earlier this week. As of April 23, we have accumulated 156 GDD (base 5), which is normally reached on May 6. Based on the current forecast, crop progress may … Continue reading →

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Ginseng Crop Update – Spring Emergence and Product Updates – April 12, 2026

Posted on April 13, 2026 by Sean Westerveld

This is the first crop update of the 2026 growing season. Emergence and Growing Degree Days Accumulated Growing Degree Days (Base 5°C) at Delhi up to April 12 are 5 days ahead of the 25-year average, which suggests crop emergence … Continue reading →

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Register Now for 2026 OMAFA IPM Workshops incl. Ginseng and Hazelnuts

Posted on April 13, 2026 by Sean Westerveld

Registration is now open for many of the OMAFA Integrated Pest Management (IPM) workshops. Workshop options of in-person, hybrid or virtual only will vary depending on the session and noted below.  To register, please follow the registration link or call … Continue reading →

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Kenja® Fungicide label expanded via Minor Use Program to help manage Cylindrocarpon root rot on Ginseng in Canada

Posted on February 4, 2026 by Sean Westerveld

By Josh Mosiondz, Minor Use Coordinator, OMAFA The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for Kenja® Fungicide for control cylindrocarpon root rot in Canada. Kenja® Fungicide was already labeled for … Continue reading →

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