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[Anita Plot]

Shirl - how do I make the bordeaux mixture that you mention

[shirlthegirl43]

Shirl - how do I make the bordeaux mixture that you mention

I bought it at a garden centre.

[ClayGarden]

Does anyone know if this site is any good though or is it still just marketing? Are they postcode aware or just county or flippen country based?

[TPeers]

Post code aware - they ask for first part codes.

[T-lady]

Is bordeaux mixture fully organic?

[Demeter]

Is bordeaux mixture fully organic?

Apparently many do consider it "organic" (although not according to last month's Garden Organic mag) but it is a bactericide and fungicide and will presumably target the good as well as the bad, so personally I would be concerned about using it for that reason.

Wikipedia says:
Bordeaux mixture - Wikipedia, the free encyclopedia
"Bordeaux mixture is a combination of copper sulfate and hydrated lime, invented in the vineyards of the Bordeaux region of France and known locally as Bouillie Bordelaise. It used mainly to control garden, vineyard, nursery and farm infestations of fungus, most notably vine fungus. This fungicide has been used for over a century and is still used, although the copper can leach out and pollute streams."

Some other web page says:
Using Organic Fungicides
"Although not the oldest fungicide, Bordeaux mixture has been successfully used for over 150 years, on fruits, vegetables and ornamentals. Unlike sulfur, Bordeaux mixture is both fungicidal and bactericidal. As such, it can be effectively used against diseases such as leaf spots caused by bacteria or fungi, powdery mildew, downy mildew and various anthracnose pathogens. The ability of Bordeaux mixture to persist through spring rains and to adhere to plants is one reason it has been so effective. Bordeaux mixture contains copper sulfate, which is acidic, neutralized by lime (calcium hydroxide), which is alkaline.

Bordeaux mixture comes in several formulations... These formulations were developed in recognition of the fact that copper, like sulfur, is phytotoxic and that the level of toxicity is related to the age of plant tissue being treated... Application of Bordeaux during hot weather (above 85�F) may cause yellowing and leaf drop. Additionally, leaf burn can occur if it rains soon after a Bordeaux application... Some sensitive plants require diluting the product to one half strength (depending on the product used � see label) to avoid phytotoxicity. These include geraniums, ivy, pansy, celery, strawberry, azaleas, dogwood and juniper.

Care should be taken when applying this fungicide to young, tender leaves of apple, pear, plum or rose. Do not apply Bordeaux to corn or ornamental sorghum, which are described as copper-sensitive plants."