Focus on Potato webcast addresses fungicide resistance

Broad-spectrum fungicides have historically been the primary modes of action managing Early Blight and Brown Spot, two significant fungal diseases of potato caused by Alternaria pathogens. More recently, growers have been using narrow spectrum fungicides in their rotations to ease environmental concerns and minimize the effects of chemical residue. No matter the mode of action, measures to mitigate fungicide resistance should be considered, particularly when applied and repeatedly used on a single site. This is the premise behind the latest Focus on Potato webcast, titled “Best Management Tactics and Fungicide Resistance in Early Blight and Brown Spot” by Dr. Lydia Tymon, plant pathology expert at Washington State University More