FungusClear Ultra Gun! Ultra Concentrate is a systemic fungicide that provides protection for ornamental plants all around the garden. The systemic action means that the formula will be absorbed by the plant to stop the spread of disease and protect the plant from disease for up to 4 months when following the programme of application. FungusClear is designed to stop the spread of the disease, and enhance the leaf shine, but it will be unable to remove spots that have already formed on the leaves. It is a concentrated formula that makes 15L of fungicide for large treatment areas.