Tag Archives: Pests

REMINDER – ONHoppenings Lunch and Learn session next Tuesday May 16 @ noon

Posted on May 11, 2023 by Melanie Filotas

Just a reminder that the first ONHoppenings Lunch and Learn session of 2023 is scheduled for next Tuesday, May 16 at noon. OMAFRA specialists Evan Elford and Melanie Filotas are back with two online Zoom discussions for Ontario hop growers … Continue reading →

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2023 ONHoppenings Lunch and Learn session for Ontario hop growers – Tuesday May 16 and Wednesday July 19 @ noon

Posted on April 5, 2023 by Melanie Filotas

OMAFRA specialists Evan Elford and Melanie Filotas are back with two online Zoom discussions for Ontario hop growers for the 2023 growing season.  This years’ sessions will take place on Tuesday May 16 and Wednesday July 19, both running over … Continue reading →

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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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Fungicide Resistance in Alternaria? Ginseng Crop Update July 17, 2020

Posted on July 17, 2020 by Sean Westerveld

With the persistent heat and dry conditions so far this summer, ginseng is stressed, and root development will be reduced. These conditions are also ideal for Alternaria development and spread. As a result, problems with Alternaria are continuing in many … Continue reading →

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Ginseng Crop Update – Pre-Plant Nematode Management – June 24, 2020

Posted on June 26, 2020 by Sean Westerveld

Ginseng Crop Update Alternaria remains the biggest challenge for most growers. The problem stems from freeze damage/stunting in May and ideal weather conditions for Alternaria – hot and dry with long dew periods. With insufficient rains over the past few … Continue reading →

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Ginseng Crop Update – Alternaria Management – June 5, 2020

Posted on June 5, 2020 by Sean Westerveld

With ginseng plants stressed from prolonged cold and/or freeze damage in many fields, they are more susceptible to foliar diseases including Botrytis and Alternaria leaf blights. Combined with ideal warm, dry and humid conditions for Alternaria, the risk of Alternaria … Continue reading →

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