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
Information for commercial vegetable production in Ontario
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
Botrytis neck rot, caused by the fungus Botrytis porri, is an uncommon disease in Ontario, but some areas this year… Continue Reading Botrytis neck rot has been found in garlic
Ontario Potato Scout Training Wednesday May 28, 2025 In-person: Ontario Potato Board Office – Elora, ON Virtual: via Zoom 9… Continue Reading 2025 Ontario Potato Scout Training
Alternaria leaf spot and head rot has become increasingly difficult to manage in Brassica vegetable crops grown in Canada. Brassica… Continue Reading Alternaria is becoming a major concern for Brassica growers
J. Mosiondz, OMAFRA, Minor Use Coordinator, Guelph The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE… Continue Reading Switch 62.5 Foliar Fungicide label expanded via Minor Use Program for Suppression of Alternaria leaf blight and powdery mildew on Brassica Vegetables in Canada
J. MOSIONDZ, OMAFRA, Minor Use Coordinator, Guelph The Pest Management Regulatory Agency (PMRA) recently announced the approval of an Emergency… Continue Reading SWITCH 62.5 WG Fungicide label temporarily expanded via Emergency Use Registration to help manage Alternaria Leaf Blight in Brussels Sprouts, Broccoli, and Cauliflower in Ontario, Quebec, Nova Scotia, and Newfoundland and Labrador
By Katie Goldenhar Cucurbit downy mildew has not yet been identified in Ontario or the Great Lakes region in 2022… Continue Reading Cucurbit downy mildew – get out and scout!
July 6th, 2020 – Downy Mildew was identified today in a commercial cucumber field in Kent County, Ontario.
Risk remains high now that the disease has been confirmed in Ontario despite hot, dry weather. Continue Reading Cucumber Downy Mildew has now been Confirmed in Kent County, Ontario
Downy mildew has been confirmed in a pickling cucumber crop in Berrien county, in Southwest Michigan. Cucumber downy mildew has NOT been identified in Ontario, but the risk is high. Growers are advised to use a downy mildew specific fungicide program, if this hasn’t been started. Continue Reading Cucumber Downy Mildew Confirmed in the Great Lakes Region 22 Jun 2020
J. Chaput, OMAFRA, Minor Use Coordinator, Guelph The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE… Continue Reading Milstop Foliar Fungicide label expanded via Minor Use Program for suppression of powdery mildew on field and greenhouse grown mint and greenhouse lettuce in Canada








