Bordeaux mixture

noun

, Horticulture.

Bordeaux mixture

horticulture a fungicide consisting of a solution of equal quantities of copper sulphate and quicklime

1890–95; free translation of French bouillie bordelaise. See boil ¹, Bordelaise

C19: loose translation of French bouillie bordelaise , from bouillir to boil + bordelais of Bordeaux

Whilst Bordeaux Mixture is the best general fungicide, it discolors the plants until it washes off.

It is not satisfactorily controlled by bordeaux mixture alone.

In most seasons, too, unremitting warfare must be kept up with bordeaux mixture to check mildew.

Spraying with bordeaux mixture as indicated for black-rot will keep downy mildew in check.

The disease is combatted by dusting with flowers of sulphur or by spraying with bordeaux mixture as for black-rot.

April 25, 2024firkin

[fur-kin ]

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