Tag Archives: pest control

Downy Mildew Identified on Hemp (Cannabis sativa) in Southwestern Ontario

Posted on September 22, 2020 by Sean Westerveld

By: Amy Fang Shi, Sean Westerveld, Jim Todd and Melanie Filotas Downy mildew of hemp (also known as cannabis downy mildew) has been identified in multiple hemp fields in southwestern Ontario. The disease first appeared in early September and was … Continue reading →

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Ginseng Crop Update – Dealing with Early Senescence, August 28, 2020

Posted on August 28, 2020 by Sean Westerveld

Given the major stresses experienced by the ginseng crop this year, including early frost damage, hot and dry conditions, and high Alternaria pressures, many gardens are senescing early this year. There are a few things to consider for proper management … Continue reading →

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Miravis Duo Fungicide Registered for Use on Ginseng and Hazelnut

Posted on August 13, 2020 by Sean Westerveld

Syngenta Canada has recently announced that the Miravis Duo fungicide label has been expanded to include the control of Alternaria blight of ginseng and eastern filbert blight of hazelnut, in addition to many other horticultural crops. Miravis Duo consists of … Continue reading →

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Ginseng Crop Update – Protecting Frost Damaged Plants – May 13, 2020

Posted on May 13, 2020 by Sean Westerveld

Varying amounts of damage from the past week’s freeze and snow events are being reported depending on the low temperatures in the area, how emerged the crop is, whether row covers were put on the crop, and how much snow … Continue reading →

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Expiring Pesticide Certification Extension

Posted on April 23, 2020 by Sean Westerveld

From ONvegetables By Dennis Van Dyk, OMAFRA Vegetable Crops Specialist: Ministry of the Environment, Conservation and Parks (MECP) is extending the pesticide certification of those who have certificates expiring this year until December 31, 2020.

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Ginseng Crop Update – Spring Considerations – April 14, 2020

Posted on April 14, 2020 by Sean Westerveld

This is the first ginseng crop update of the 2020 growing season. This spring represents some unique challenges for ginseng production. The primary concern is the availability of labour and the timing of pulling shade over the gardens. There are … Continue reading →

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