caption: Fungus fighter plus (Bayer Garden) This product is a systemic fungicide to give long lasting control of up to 3 weeks. It controls blackspot, mildew, rust and leaf spot, including box blight and white rust. Controls all major leaf diseases of roses and ornamental plants. Controls blackspot, mildew, rust, leaf spot, including box blight and white rust. Two effective active ingredients give contact and systemic action -- fast acting and long lasting. Protects for up to 3 weeks. Use on houseplants and ornamental garden plants. Targets black spot, mildew, rust, leaf spot. For use on ornamental trees and roses. Sizes: 800ml RTU, 125ml concentrate.