Captain Jack’s Liquid Copper Fungicide by BONIDE is an organic-approved fungicide designed to control and prevent common fungal diseases on a wide variety of plants. Ideal for organic gardening, this liquid concentrate helps protect fruits, vegetables, nuts, herbs, and flowers from diseases such as blight, leaf spot, downy mildew, and more.

This versatile copper fungicide can be applied during both the dormant and growing seasons, making it a reliable year-round disease management solution. When used according to label directions, it is safe to apply up to the day of harvest, helping gardeners maintain healthy plants without compromising organic practices.