Definition of black sigatoka
: a serious leaf spot disease of bananas caused by an ascomycetous fungus (Mycosphaerella fijiensis) and marked initially by small, dark brown streaks on the lower surface of the leaf Banana researchers recently discovered black sigatoka, a disease that attacks banana leaves, on local crops. — Ryan Maldonado, Miami Herald, 7 Jan. 1999 The plants have been genetically modified to resist black sigatoka, a leaf spot disease caused by the fungus Mycosphaerella fijiensis. — Anne Dauwers, Nature, 28 June 2007; also : the causative fungus Another dark shadow is black sigatoka, a fungus that turns banana leaves black and blocks photosynthesis. — David Grimm, Science, 14 Dec. 2008
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First Known Use of black sigatoka
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