black stem

noun

: any of various diseases of plants characterized by darkening of the stem: such as
a
: a disease of alfalfa caused by a fungus (Ascochyta imperfecta)
b
: a disease of cabbage and cauliflower caused by a fungus (Phoma lingam)

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“Black stem.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black%20stem. Accessed 22 Apr. 2024.

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