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Ultra Guard
Ultra Guard consists of 400 grams phosphorus acid as the potassium salt and 50 grams fulvic acid per liter solution. Ultra Guard is a total water soluble organic product for the control of Phytophtora as a soil application.
Ultra Guard can be applied to any crop at any time during the growth cycle where Phytophtora infestation occurs such as the following crops citrus, avocados, macadamias and others.
Ultra Guard is applied as a once of dosage of 200 ml per tree where severe Phytophtora infestation occurs (ie root rot is apparent) followed by a monthly application of 20 ml per tree.
A general soil application rate for the prevention of root rot is 10-20 ml per tree per month.
M.S.D. information (PDF format)