Tag Archives: Ginseng

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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Full Moon and Frost Risk – Is There Really a Connection?

Posted on May 12, 2026 by Sean Westerveld

It is May, the time of year when growers constantly watch the weather because the risk of frost is high. Many growers and gardeners consider the May full moon as an important factor for determining when the last frost of … Continue reading →

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Ginseng Crop Update – Frost Considerations – May 1, 2026

Posted on May 1, 2026 by Sean Westerveld

It is frost season again, and there is a lot of uncertainty at this time of year. Ginseng in older gardens is emerging through the straw and could be susceptible to freezing conditions. Here are some considerations for forecasting and … 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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