Life Sciences Commons^™

Comparative Performance Of Reduced-Risk Fungicides And Biorational Products In Management Of Postharvest Botrytis Blight On Bigleaf Hydrangea Cut Flowers, Ravi Bika, Cristi Palmer, Lisa Alexander, Fulya Baysal-Gurel

Agricultural and Environmental Sciences Faculty Research

Botrytis cinerea is one of the problematic and notorious postharvest pathogens of bigleaf hydrangea (Hydrangea macrophylla) cut flowers. It causes flower blight, leaf blight, and stem rot, reducing the ornamental value (such as longevity, color, and texture) of flowers, ultimately making them unsalable. The objective of this study was to identify effective conventional fungicides and biorational products for botrytis blight management on bigleaf hydrangea cut flowers that can be easily and readily adopted by growers of ornamentals. Preventive preharvest whole-plant spray and postharvest dip treatment applications were used in this study. For the whole-plant spray applications, bigleaf hydrangea …