In the link below, please find the UWEX Vegetable Crop Updates newsletter #20. In this issue you will find:
updates on PDays and DSVs for disease control in potato
updates on late blight (national and WI) and cucurbit downy mildew
The severe storms that recently moved through WI are good carriers and movers of pathogen spores. In addition to moving spores, storms provide some crop damage and moisture which can be great promoters of many diseases. Consider tightening up your fungicide application calendar in this week following the storms. In fields in which you have been battling bacterial or other diseases, an application of copper containing fungicides as soon as possible can aid in limiting further spread of disease.