Category Archives: Ginseng Production

Ginseng Crop Update – Managing Grubs Without Insecticides – June 28, 2023

Posted on June 28, 2023 by Sean Westerveld

Other than localized storm damage to shade structures over the past few weeks, there are currently no major unusual issues for ginseng. However, prolonged wet, humid and cooler weather over the past week and more wet weather to come this … Continue reading →

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Ginseng Crop Update – Alternaria, Irrigation and Fertility – June 7, 2023

Posted on June 7, 2023 by Sean Westerveld

Foliar Diseases Dry weather conditions and low humidity during warm periods have reduced the risk of most diseases of ginseng. However, frost damage in some gardens and plant stress due to dry conditions can result in increased risk of Alternaria … Continue reading →

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Ginseng Crop Update – May 25, 2023

Posted on May 25, 2023 by Sean Westerveld

It looks like most areas escaped a frost last night, mostly due to a breeze that continued all night that mixed up the air. There is a slight risk again tonight with calmer air, but forecast dewpoints are +1C for … Continue reading →

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Frost Potential for Ginseng May 25 and 26, 2023

Posted on May 23, 2023 by Sean Westerveld

Here we go again on the risk of frost for the ginseng growing areas. The risk appears to be lower at this time but the forecast dewpoint on Weather Underground for Delhi is -1C. Low temperatures are forecast to be … Continue reading →

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Risk of Frost for Ginseng this Week – Plan Now – May 15, 2023

Posted on May 15, 2023 by Sean Westerveld

Although the weather forecasts generally still show low temperatures above freezing every night this week in the ginseng production area (as of Monday at noon), the risk of frost especially Wednesday night is relatively high. This is because of the … Continue reading →

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Ginseng Crop Update – Crop Emergence – April 21, 2023

Posted on April 21, 2023 by Sean Westerveld

The warm temperatures and sunny conditions last week have accelerated ginseng crop emergence. As of April 20, 103 Growing Degree Days (GDD) (Base 5) has accumulated at Delhi. This is 30 GDD above normal for this time of year. On … Continue reading →

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