Question

What is BORDEAUX MIXTURE?
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Answer 1

Explanation:

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Bordeaux mixture

Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulphate (CuSO4) and quicklime (CaO)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 preventive treatment; 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. As such its sale and use is illegal in Great Britain and most of the European Union. Despite this, it has been promoted as an 'organic' pesticide.

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Answer 2

Answer:

Bordeaux mixture is a fungicide made of copper sulphate and calcium hydroxide, the latter better known as lime. Yeasts, moulds and mushrooms, all of which are classified as fungi, can present a nightmare for farmers. ... It was back then that French vines were first affected by a fungal disease known as powdery mildew

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