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Category Archives: Ginseng
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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Climate Change in Southern Ontario – Potential Impacts for Specialty Crops
When most people think about climate change, an image of excessive heat and drought comes to mind. In Canada, we may also think about warmer winters and reduced snowfall (this winter excluded). There is also the impression that weather conditions … Continue reading
Posted in All Specialty Crops, Ginseng, Herbs, Hops, Industrial and Misc. Crops, Industrial Hemp, Lavender, Specialty Fruit and Nuts, Specialty Grains, Specialty Vegetables, Sweet Potato, Tree Nuts
Tagged Climate, Ginseng, Hops, Lavender, Pests, Specialty Berries, Specialty Fruit, Specialty Vegetables, Tree Nuts
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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