Image examples of the dataset, Note: Alternaria Bolich: Black circular lesion with a diameter of 2-5mm and clear edges; Brown Spot: Brown circular patches (3-8mm) with yellowing halo around them; Grey Spot: Gray irregular spots (1-3mm), mostly distributed near the leaf veins; Mosaic: Yellow and green stripes, distributed in a network pattern; Rust: Orange powdery spots (<2mm), easily confused with leaf rust.