Can I use Eagle 20EW on mayhaw trees for cedar rust? If so, how much to a gallon of water and how often?
Answer:
Eagle 20EW Specialty Fungicide is not labeled for use in mayhaw trees. For listed ornamentals, such as flowering crabapple, you would use 6-12 oz per 100 gallons of water, or approximately 0.06 - 0.12 oz per gallon of water.
You could use a neem product such as Ferti-Lome Triple Action for rust on mayhaw and other edibles up to day of harvest.