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Tag Archives: Diseases
Downy Mildew Identified on Hemp (Cannabis sativa) in Southwestern Ontario
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
Posted in Industrial Hemp
Tagged Diseases, Downy Mildew, Hemp, Industrial crops, Industrial Hemp, pest control, Pest Management, Pests
1 Comment
Ginseng Crop Update – Dealing with Early Senescence, August 28, 2020
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
Posted in Ginseng, Ginseng Pest Management, Ginseng Production
Tagged Diseases, Ginseng, Irrigation, pest control, Pest Management, Weed control
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Miravis Duo Fungicide Registered for Use on Ginseng and Hazelnut
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
Basil Downy Mildew Confirmed in Ontario – July 28, 2020
Basil downy mildew has been confirmed in a home garden in Norfolk County. The symptoms first appeared in the past days, which means infection probably occurred over a week ago. It is likely that the disease is present in most … Continue reading
Posted in Culinary, Herbs
Tagged Basil, Diseases, Fungicide, herbs, Pest Control Products
2 Comments
Fungicide Resistance in Alternaria? Ginseng Crop Update July 17, 2020
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
Posted in Ginseng, Ginseng Pest Management
Tagged Diseases, Fungicide, Ginseng, Pest Control Products, Pest Management, Pests
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Experiencing Strange Symptoms on Lavender? Lavender Crop Update July 10, 2020
Lavandula angustifolia cultivars are in full bloom in most of Ontario, with lavandins starting to bloom further south. Some cultivars are already past peak, progressing through bloom faster due to the hot conditions. It is becoming very dry in most … Continue reading
Posted in Herbs, Lavender
Tagged Diseases, Disorders, Frost, herbs, Lavender, winter damage
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