Earth's Ally® Disease Control, Concentrate, 32 Oz

This food-grade citric acid concentrated formula controls common plant diseases, including downy and powdery mildews, black spot, leaf spot, canker and blight. It can be used up to the day of harvest on vegetables and leaves no harmful residue on plants. Also effective on ornamentals, including houseplants, flowers, trees and shrubs. It has proven safe for people, pets and bees when used as directed.