Powdery mildew attacks leaves, shoots, and fruits, but symptoms are most apparent on the leaves, which are more or less covered with a grey or white film, as is the leaf at left in the illustration. The other leaf is healthy.
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https://paperspast.natlib.govt.nz/periodicals/NZJAG19591116.2.55.3
Bibliographic details
New Zealand Journal of Agriculture, Volume 99, Issue 5, 16 November 1959, Page 479
Word Count
41Powdery mildew attacks leaves, shoots, and fruits, but symptoms are most apparent on the leaves, which are more or less covered with a grey or white film, as is the leaf at left in the illustration. The other leaf is healthy. New Zealand Journal of Agriculture, Volume 99, Issue 5, 16 November 1959, Page 479
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