blackfire
noun
: a disease of tobacco caused by a bacterium (Pseudomonas angulata) and characterized by angular leaf spots without a surrounding halo that are at first dark green but become zonate and turn grayish, tan, or dark brown and may drop out leaving ragged holes compare wildfire
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“Blackfire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blackfire. Accessed 25 Nov. 2024.
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