Gray leaf spot control: an expanded review of product efficacy

In previous PACE Updates, we have provided examples of two fungicide programs that have provided efficacy against gray leaf spot. However, there are several other products that have equivalent activity, according to reports published in the journal “Fungicide and Nematicide Tests” between 1999 and 2003. The information below is summarized from these reports, most of which were conducted by researchers at the University of Kentucky, Pennsylvania State University and Rutgers University. In all cases, courses with a history of gray…