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Feature film — 1949
The Enemies of the Potato: Virus Diseases (1949)
0.00h 9mDocumentary
Among the various diseases that attack the potato during the growing season, there are first of all the virus diseases such as Mosaic, Leaf Roll, Spindle, Purple Top, etc. Certified seed appears to be the most effective means of combating these diseases.
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Director: Maurice Proulx
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