| 单词 | black knot fungus |
| 释义 | > as lemmasblack knot fungus black knot n. (a) Irish English a knot which is difficult to undo (now rare); (b) a fungal disease of fruit trees characterized by the formation of irregularly shaped rough black swellings on the bark; (also, more fully black knot fungus) any of several fungi causing this disease, esp. Dibotryon morbosum, chiefly affecting plum and cherry trees. ΘΚΠ the world > plants > particular plants > fungi > [noun] > names applied to various types spunk1665 black knot1840 parasol1870 earth-ball1925 1840 Irish Penny Jrnl. 14 Nov. 155/1 His tail bein' very long, gave a twitch an' hitched itself in a black knot round the chap's body, and so towed him across the river. 1846 Cultivator July 222/2 The black knot on the plum tree, is also cured in the same way. 1884 W. Miller Dict. Eng. Names Plants 252 Sphæria mortosa, ‘Black knot’ fungus. 1905 J. M. Synge Shadow of Glen & Riders to Sea 50 Give me a knife, Nora, the string's perished with the salt water, and there's a black knot on it you wouldn't loosen in a week. 1915 Board Agric. & Fisheries Leaflet No. 213 Gooseberry Black-knot (Plowrightia ribesia, Sacc.). 1990 National Gardening May 12/3 The growth is black knot fungus... Remove the black knots on the smaller limbs by pruning out infected branches. 2004 G. A. Hammerson Connecticut Wildlife 156/1 (caption) Black knot is a fungal parasite commonly afflicting native cherries. < as lemmas |
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