Sulfation: nm Sulfation is the action of treating with copper sulphate which allows the prevention of various diseases (mildew, powdery mildew). The treatment is not toxic since the product used is of the fungal type (against fungi). The sulphating of the vines begins in mid-May and ends in mid-August. The first, when the shoots have reached 10 to 15 cm, the second just after flowering, and the third at the very beginning of veraison. A fourth is sometimes necessary...
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