New for Powdery Mildew and Rust control on ornamentals. If you have been using Eagle for years, now is the time to change to the next generation of mildew control. Trionic Fungicide delivers effective control of powdery mildew on a variety of crops. Trionic is a sterol-inhibiting fungicide that inhibits the ergosterol biosynthesis pathway and membrane function within the fungal pathogen. By providing locally systemic activity, as well as protectant & curative benefits, Trionic should become a key component in your disease management program. Same active ingredient as Terraguard but at a much lower price! Usage rate on ornamentals is 1/4 to 1/2 teaspoons per gallon of spray solutions.