Sulphuring For Mildew
For two years I have not sulphured my vineyard and had no mildew. My
vines seem as healthy and thrifty as any of the neighbors' that were
duly sulphured. Have I lost anything by not sulphuring?
Certainly not. In sections where mildew is practically sure to come,
sulphur should be used regularly as a preventive without waiting for the
appearance of the disease. There are, however, many locations,
especially in the interior valley, where the occurrence of mildew is
rare in sufficient volume to do appreciable harm, and then sulphuring
should depend upon the weather, which favors mildew or otherwise. But be
always on the watch and have everything ready to sulphur immediately;
also learn to recognize the conditions under which appearances of mildew
become a menace.
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