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Image Subject Name Scientific Name Description
0656018 downy mildew Plasmopara halstedii A sporangiophore with sporangia arising from a cotyledon of sunflower systemically infected with Plasmopara halstedii.
0176078 leaf spot of maize Bipolaris zeicola Lesions caused by Cochliobolus carbonum on maize leaf.
0656016 downy mildew Plasmopara halstedii Sunflower severely affected by downy mildew (Plasmopara halstedii) in the field, showing retarded growth, leaf chlorosis and horizontal head.
0656017 downy mildew Plasmopara halstedii Young sunflower plants affected by downy mildew (Plasmopara halstedii) in the field, with fungal sporulation on the lower leaf surface.
0454018 leaf spot of maize Bipolaris zeicola Cochliobolus carbonum conidia

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