Kaligreen® – OMRI Listed Organic Fungicide for Powdery Mildew Kaligreen® is a contact organic fungicide for the control of powdery mildew. It contains microencapsulated potassium bicarbonate as the active ingredient and is OMRI listed for organic production. Should be applied at the first sign of disease and may be applied up to the day of harvest. Direct contact with the fungus is absolutely necessary for control. Potassium ion balance in the fungus cell is broken by Kaligreen®; cell walls collapse, shrinking the cells and destroying the fungus. Optimal pH for spray solution is 7.5 - 8.5. Environmentally safe fungicide for greenhouse, specialty crops, wine grapes and more. Labeled for over 40 crops. Kaligreen Product Label Kaligreen Safety Data Sheet Kaligreen OMRI Certificate
