The mustard crop is grown in tropical and subtropical as well as temperate zone. Mustard crops play an essential role in agricultural economy of India. The mustard may be caused many foliages diseases viz, leaf blight, white rust, and downy mildew and powdery mildew diseases that severe economic losses. It is managed by the sustainable practices which are cultural, mechanically, eco-friendly practices, and plant protection. The sustainable agriculture very crucial enhances the productivity and production of crops.