Bordeaux mixture


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Related to Bordeaux mixture: hydrated lime

Bordeaux mixture

a fungicide used on grape vines consisting of copper sulfate, calcium hydroxide and water. It has also been used in the treatment of ringworm in cattle. It can cause copper poisoning.
References in periodicals archive ?
Such conditions are often thought to be particularly challenging for organic growers, who can only rely on 'traditional' treatments - Bordeaux mixture (copper sulphate and lime) against downy mildew and sulphur against the powdery variety.
Spray emerging peach and nectarine tree leaves with a fungicide, such as Bordeaux mixture, to stop leaf curl.
The only way to avoid blight is to spray every 10-14 days with Bordeaux mixture available from garden centres before plants are infected.
Sale of Bordeaux mixture, a standard spray treatment used until recently ( even by organic gardeners ( is due to be banned at the end of next year.
There are a number of fungicides on the market - look on your garden centre shelves - or you can use the old standby Bordeaux mixture, a concoction of copper sulphate and lime.
Bordeaux Mixture prepared from copper sulphate and lime is the standard fungicide for potato blight.
Spray peaches with a copper-based fungicide, such as Vitax Bordeaux Mixture, to prevent peach leaf curl.
The time to start treatment is this month before growth starts, spraying with Bordeaux mixture, a powder made up of copper sulphate and lime to kill many of the overwintering colonies.