Late Blight Identified on Tomatoes – August 8
Late blight has been found in tomatoes in Middlesex County. The identified area was small, but the risk of late… Continue Reading Late Blight Identified on Tomatoes – August 8
Category: Late Blight
Late Blight Update – July 24th 2025
Late blight strain ID testing has confirmed the strain found on potatoes was US-23. This is the same strain that… Continue Reading Late Blight Update – July 24th 2025
Late Blight Update – July 17th, 2025
Late blight has been confirmed on potatoes in Dufferin County. The identified area was small but risk of late blight… Continue Reading Late Blight Update – July 17th, 2025
2025 Late Blight Update
With high late blight pressure the last two seasons, there may be enough inoculum around for an outbreak. Approach this… Continue Reading 2025 Late Blight Update
Late Blight Update
Late blight has been found in a tomato field in Kent County. Samples are being analyzed for strain identification.
Late Blight Update
Late blight has been detected on a few potato plants in one field in Elgin county.
Late Blight Update – July 28, 2023
By: Amanda Tracey and Katie Goldenhar There have been reports of late blight symptoms on potato in Simcoe and Dufferin… Continue Reading Late Blight Update – July 28, 2023
Late blight update – July 21, 2023
By: Amanda Tracey and Katie Goldenhar Sporangia of Phytophthora infestans have been detected via spore trap in tomato fields in… Continue Reading Late blight update – July 21, 2023
Late blight update: Phytopththora infestans detected in Chatham-Kent
Joseph Tomecek (Tomecek Agronomic Services/M.Sc. candidate, Dept. of Plant Agriculture, Univ. of Guelph); Amanda Tracey (OMAFRA), Dr. Cheryl Trueman (Ridgetown Campus,… Continue Reading Late blight update: Phytopththora infestans detected in Chatham-Kent
Late blight spore trapping update: no evidence of Phytopththora infestans sporangia in Chatham-Kent yet this year
Joseph Tomecek (Tomecek Agronomic Services/M.Sc. candidate, Dept. of Plant Agriculture, Univ. of Guelph); Amanda Tracey (OMAFRA), Dr. Cheryl Trueman (Ridgetown… Continue Reading Late blight spore trapping update: no evidence of Phytopththora infestans sporangia in Chatham-Kent yet this year