Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu
Continue to scout fields for downy mildew. The recent hot weather is less favorable but the high humidity and morning fog might counteract the heat and provide conditions for the fungus to survive until the temperatures cool off. Areas that are getting thundershowers should be checked often for downy. See articles in past issues of WCU for pictures and more information (WCU17:22 and WCU17:20).