Author Archives: Sean Westerveld

About Sean Westerveld

Ginseng and Medicinal Herbs Specialist, OMAFRA

Lavender Crop Update – June 23, 2017

The first lavender cultivars are close to bloom in some areas and the harvest season will begin shortly (Fig. 1). For bundles and buds, it is best to harvest near the time the first buds begin to open. This is … Continue reading

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Ginseng Crop Update – June 23, 2017

While the amount of rainfall has been highly variable across the ginseng growing area, all areas have received periodic showers this week that has resulted in long periods of leaf wetness. Foliar Phytophthora is still active in several farms and … Continue reading

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Summer/Fall Student Position Available at the Simcoe Research Station

Job Ad:     Student – Horticulture Assistant Organization: Ontario Ministry of Agriculture, Food and Rural Affairs Division/Branch: Economic Development Division / Agriculture Development Branch Position Title: Student – Summer Research Assistant Job Term: Temporary (1 position) for up to 18 weeks Location:  OMAFRA Simcoe … Continue reading

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Lavender Crop Update – June 9, 2017

Finally it is warming up and lavender should progress very quickly over the next week. The earliest cultivars are starting to show bud colour (Fig. 1), which suggests the beginning of bloom is about 2 weeks away. It is looking … Continue reading

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Ginseng Crop Update – June 8, 2017

Over the past week there have been confirmations of both foliar and root Phytophthora, Alternaria on stems and leaves, active grub feeding, leafrollers, and slugs. Many of these issues are not too surprising for this time of year. Foliar Phytophthora … Continue reading

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Ginseng Crop Update – May 26, 2017

As experienced growers will already know, the risks of all foliar diseases of ginseng along with Phytophthora root rot are high following the heavy rains. Ensure protection from foliar and root Phytophthora, Alternaria and Botrytis at this time.  Disease pressure … Continue reading

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Laboratory Diagnosis of Ginseng Diseases and Nematodes

Throughout the summer growers often come across various unknown diseases and disorders that require diagnosis. In addition, growers often want to have new land tested to know if it is suitable for growing ginseng. I thought it would be good … Continue reading

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