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出典:Wiktionary
出典:『Wiktionary』 (2008/04/25 21:39 UTC 版)
clopyralid (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/30 10:56 UTC 版)
Clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) is a selective herbicide used for control of broadleaf weeds, especially thistles and clovers. For control of Creeping Thistle, Cirsium arvense, a noxious, perennial weed, clopyralid is the only effective herbicide available.
Clopyralid