The study of organic fungicides on powdery mildew went very well this year. In spite of the difficult weather conditions this year posed, the plants grew well and we were able to obtain very clear data. This years data was consistent with the data from 2011 which shows that we are the right track in determining the effectiveness of organic fungicides on powdery mildew that the cut-flower growers will be able to utilize. Along with this trial, there was a new element to this study. We looked at the effectiveness of cranberry leaves as a mulch. With two depths tested, along with a control, we were also able to see very clear results in how well cranberry leaves are able to suppress the growth of both grass-type weeds and broadleaf weeds. This study showed great promise this year and we are excited to continue to watch the results in 2013.CFGW, disease, Evaluations, Flowers, Project and tagged CFGW, cranberry leaves, Dane County, Flower Evaluations, flowers, fungicides, madison, mulch, organic, powdery mildew, University Display Gardens, wisconsin, WMARS.
Agricultural Research Station – UW Madison