stem rust

noun Plant Pathology.

any of several fungal diseases of plants affecting the stems, especially a disease of wheat and other grasses characterized by pustules of red and then black spores.
any of the fungi causing such a disease.

Origin of stem rust

First recorded in 1915–20

Words nearby stem rust

stem christie, stem duchy, stem ginger, stem reptile, stem rot, stem rust, stem the tide, stem to stern, stem turn, stem-and-leaf diagram, stem-end rot