Tag Archives: Diseases

Basil Downy Mildew Confirmed in Ontario – July 31, 2019

Posted on July 31, 2019 by

Basil downy mildew has been identified in Norfolk and Prince Edward Counties in Ontario and is likely to be present elsewhere over the next week. Basil downy mildew is a highly destructive disease that can completely defoliate a plant within … Continue reading →

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Managing Multiple Diseases at Once in Ginseng – Crop Update, June 20, 2019

Posted on June 21, 2019 by

This has been a challenging year for disease management in ginseng. In addition to the earlier issues with root diseases, especially Phytophthora, we are now dealing with high pressures of Alternaria (Figure 1) and Botrytis (Figure 2). It can be … Continue reading →

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Managing Phytophthora Leaf Blight – Ginseng Crop Update – May 31, 2019

Posted on May 31, 2019 by

The persistent wet and cool conditions have resulted in very high risk of foliar Phytophthora. After the wet conditions last fall and this spring, there is a high amount of inoculum of Phytophthora in low areas in most gardens. When … Continue reading →

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Fumigation Best Practices for Ginseng

Posted on May 24, 2019 by

This is the time of year ginseng growers prepare new land for fumigation. Based on the numerous trials OGGA and OMAFRA have conducted over the past 8 years on fumigation, proper preparation and sealing of the fumigant into the soil … Continue reading →

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Early Season Management of Phytophthora in Ginseng

Posted on May 3, 2019 by

After a very wet late summer and fall last year, Phytophthora root rot probably had a chance to spread within low areas of ginseng gardens. Combined with the wet conditions we are currently experiencing, management of Phytophthora leaf blight and … Continue reading →

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Apron Maxx RTA Seed Treatment Registered for Use on Ginseng

Posted on April 4, 2019 by

The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE registration for Apron Maxx RTA seed treatment for the control of seed rot/pre-emergence damping-off, post-emergence damping-off and seedling blight caused by Fusarium spp., Pythium spp., and Rhizoctonia … Continue reading →

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Confine, Rampart and Phostrol Fungicides Registered for Suppression of Downy Mildew and Pythium Root Rot on Greenhouse-Grown Basil

Posted on April 4, 2019 by

By: J. Chaput, OMAFRA, Minor Use Coordinator, Guelph The Pest Management Regulatory Agency (PMRA) recently announced the approval of URMULE registrations for ConfineTM, Rampart® and PhostrolTM Fungicides for suppression of downy mildew and pythium root rot on greenhouse-grown basil in … Continue reading →

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