1 ring spot | Definition of ring spot
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ring spot

noun

Definition of ring spot

1 : 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

First Known Use of ring spot

1913, in the meaning defined at sense 1

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