Downy Mildew Identified in Elgin County – July 3rd, 2012

Downy mildew was confirmed in a pickling cucumber field in Elgin County on July 3rd, 2012.  The level of disease in this field is significant with up to 20% of the canopy showing infection.

All cucumber growers in Ontario are reminded to maintain an agressive preventative spray program to guard their crop against this disease.  Spray a recommended downy mildew fungicide every 7-days.  If possible, apply the fungicide before a predicted rainfall or irrigation event. The 2012 Ontario Downy Mildew Control Recommendations are posted at:

Scout all cucumber fields regularly to monitor for infection and assess the effectiveness of your spray program.

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