Zing!, a mixture of zoxamide and chlorothalonil, has been registered for use against potato late blight and early blight. Growers may use 32-34 fluid ounces per acre applied on a preventative schedule. Applications may begin when conditions are favorable for disease development. Use a five- to seven-day schedule (the minimum re-treatment interval is five days) when disease is present and environmental conditions favor continued disease development. Use the highest rate and shortest interval when plants are rapidly growing and disease conditions are severe. Use the maximum labeled rate at row fill. More