Green Light Rose Defense is an excellent control for BlackSpot, Powdery Mildew, Rust, Spider Mites, and Whiteflies on Roses and Ornamental Plants. Stops powdery mildew in 24 hours. For use on roses houseplants flowers trees, and shrubs. Rose defense is an effective fungicide for the prevention and control of various fungal diseases including powdery mildew, black spot, downy mildew, anthracnose, rust leaf spot, botrytis, needle rust, scab, and flower, twig, tip blight, and alternaria. Active ingredient is clarified Hydrophobic Extract of Neem oil (90.0%). It is a botanically derived product that is biodegradable and non-toxic. Plants sprayed with Rose Defense also appears shiny and healthy. To mix use 1 ounce to 2 tablespoons per gallon of water.