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Bordeaux mixture
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Bordeaux mixture : ウィキペディア英語版
Bordeaux mixture
Bordeaux mixture (also called ''Bordo Mix'') is a mixture of copper(II) sulfate (CuSO4) and slaked lime (Ca(OH)2) used as a fungicide. It is used in vineyards, fruit-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed on plants as a ''preventative''; its mode of action is ineffective after a fungus has become established. It was invented in the Bordeaux region of France in the late 19th century. If it is applied in large quantities annually for many years, the copper in the mixture eventually becomes a pollutant.
==Main uses==
In addition to its use to control fungal infection on grape vines, the mixture is also widely used to control potato blight, peach leaf curl and apple scab.〔Pears, Pauline, et al. HDRA Encyclopedia Of Organic Gardening, pp103, Dorling Kindersley Ltd, London, 2005.〕 It is approved for organic use, so is often used by organic gardeners where nonorganic gardeners would prefer other controls.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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