Zineb is primarily used as a fungicide in agriculture to protect a wide variety of crops from fungal diseases. It is effective against pathogens that cause blight, leaf spot, and mildew in fruits, vegetables, and ornamental plants. Farmers apply Zineb as a foliar spray, ensuring even coverage on plant surfaces to prevent fungal spores from germinating and spreading. Its protective action helps maintain crop health and yield, making it a valuable tool in integrated pest management systems. Additionally, Zineb is used in seed treatment to safeguard young plants from soil-borne fungal infections during germination and early growth stages.