Author Archives: Sean Westerveld

About Sean Westerveld

Ginseng and Medicinal Herbs Specialist, OMAFRA

Understanding Wholesale Lavender Essential Oil Terms

Lavender growers must occasionally purchase wholesale lavender essential oils for making value added products to supplement their own supply. However, the terminology used in the advertisements for these oils can be very confusing and misleading. Some of the oils on … Continue reading

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Job Posting: Summer Research Assistants for OMAFRA in Simcoe

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 (6 positions) up to 14 weeks Location:                                OMAFRA Simcoe Resource Centre, Simcoe, … Continue reading

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Ginseng Pesticide and Research Prioritization Meeting – Dec. 2

The Ginseng Pesticide and Research Prioritization Meeting will continue this year as a Zoom meeting. This is an opportunity to discuss the production issues over the past year, establish research priorities for the coming year and to prioritize products for the minor use … Continue reading

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Late Fall Disease Management for Ginseng – Ginseng Crop Update October 27, 2021

It should come as no surprise to ginseng growers that it has been exceptionally wet this year since the beginning of June and especially this fall. Don’t take my word for it. Figure 1 shows a map of precipitation relative … Continue reading

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Control of Scentless Chamomile in Ginseng

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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Ginseng Crop Update – Fall Armyworm on Rye Cover Crops – August 31, 2021

Growers are noting significant damage from fall armyworm on rye cover crops used before ginseng planting and rye nurse crops used to anchor the straw after planting. Wheat is also likely to be affected. There has been a major outbreak … Continue reading

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