单词 | black scurf |
释义 | > as lemmasblack scurf black scurf n. any of several fungal diseases of plants causing black, scurf-like discoloration; esp. a disease of potatoes caused by Rhizoctonia solani in which small fungal growths appear on the skin of tubers. ΚΠ 1899 D. McAlpine Fungus Dis. Citrus Trees Austral. 132 Black Scurf of Citrus Fruits... This disease resembles one stage of Sooty Mould, only it does not peel off and leave the surface unbroken. 1903 Year-bk. Agric. 404 The same fungus causes black scurf of potato tubers. 1913 F. L. Stevens Fungi which cause Plant Dis. 504 C. scabrum McA. is the cause of black scurf of citrus fruit in Australia. 2005 Press & Jrnl. (Aberdeen) (Nexis) 12 Mar. 38 Seed potato producers are being advised to consider treating stocks for black scurf, which is reportedly visible on 45% of tatties. < as lemmas |
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