单词 | ring spot |
释义 | ring spotnoun1 : any of various plant diseases caused by viruses (genus Nepovirus of the family Comoviridae) and marked by circular lesions of usually chlorotic or necrotic tissue 2 : a turf disease caused by an ascomycetous fungus (Leptosphaeria korrae synonym Ophiosphaerella korrae) and marked by circular patches or rings of dead grass |
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