Infestation of Johnson grass in corn field - Claflin, Larry (My University, 1975)
Photograph showing a heavy infestation of johnson grass in a corn field.
Host/Plant: Corn and numerous other crops and grasses. (Zea mays)
Pest/Path: Maize Dwarf Mosaic potyvirus (Potyviridae)
Keywords: Corn; Virus Diseases; Potyvirus; Color photographs