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Tag Archives: Diseases
Ginseng Crop Update – Dealing with Heat – July 18, 2025
Although some cooler weather has temporarily arrived, we are currently experiencing a hot stretch that may continue again next week. Many areas have also been very dry, with only 43 mm of rain having fallen at the Delhi Weather Station … Continue reading
Posted in Ginseng, Ginseng Pest Management, Ginseng Production
Tagged Diseases, Fertility, Ginseng, Heat Stress, Insects, Pest Management
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Ginseng Crop Update – Pests – June 20, 2025
Alternaria After a prolonged cool and damp (but not wet) period, temperatures are about to rise dramatically. Combined with some frost damage and canopy stunting due to the long, cool period, this will greatly increase the risk of Alternaria leaf … Continue reading
Posted in Ginseng, Ginseng Pest Management
Tagged Diagnostics, Diseases, Ginseng, Insects, Pest Management
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Ginseng Crop Update – Frost, Rhizoctonia, and Leaf Folders – May 30, 2025
Frost In the last crop update, I commented on how much colder the temperatures were at Delhi than the forecast the night before. Since then, there have been several nights with temperatures several degrees Celsius colder at Delhi than at … Continue reading
Posted in Ginseng, Ginseng Pest Management, Ginseng Production
Tagged Diseases, Frost, Ginseng, Insects
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Spotting Rhizoctonia at Home: A Quick and Easy Test for Ginseng Growers
By: Amy Shi, Research Associate, Ontario Ginseng Growers Association Rhizoctonia is showing up in ginseng gardens. The symptoms of Rhizoctonia crown rot in ginseng include expanding circles (up to 1 m in diameter) of collapsing tops that often arch over … Continue reading
Ginseng Crop Update – Dealing with Frost and Leaf Folders – May 15, 2025
Frost Risk Once again, a cold snap at the end of the long weekend and into next week could bring the risk of frost to frost-prone areas. As of May 15, none of the forecasts show freezing conditions, and dewpoints … Continue reading
Posted in Ginseng, Ginseng Pest Management, Ginseng Production
Tagged Diseases, Frost, Ginseng, Insects
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Vayantis Seed Treatment Registered for Use on Ginseng, Herbs, Spices, and Many Other Crops
The Pest Management Regulatory Agency recently announced a label expansion for Vayantis Seed Treatment for the control of seed rot and pre-emergence damping-off caused by Pythium spp. on a wide range of crops, including ginseng, culinary herbs listed within any … Continue reading