Black stem rust Puccinia graminis infection on a wheat stem USA

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Photo credit: © Nigel Cattlin / Alamy / Afripics
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Keywords: agriculture, basidiomycetes, basidiomycota, biotroph, black, bread, close, crop, disease, durum, fungal, fungi, fungus, graminis, imperfecti, july, leaf, minnesota, node, obligate, pathogen, puccinia, pucciniaceae, pucciniomycetes, pustule, pustules, red, rust, spores, stem, triticum, uredinia, uredopores, uredospore, usa, wheat