Cheminova's Koverall fungicide is now registered for use in California on walnuts and for numerous crops in Arizona including lettuce.
Koverall contains the active ingredient mancozeb. Growers now have another option to battle walnut blight in orchards and downy mildew in lettuce fields.
Walnut blight continues to be a problem which impacts yields. Koverall can help protect walnut orchards from this disease.
Koverall provides broad spectrum disease control of key diseases with no known resistance reported.
Beyond walnuts and lettuce, Koverall has numerous crops on its label including almonds, apples, pears and other pome fruit, cereals, corn, potatoes, tomatoes, cucurbits, plus several other fruits and vegetables.
In the U.S., there are more than 245,000 acres of walnuts which produce more than 460,000 tons of walnuts annually.