English film
The Enemies of the Potato: Virus Diseases
Les ennemis de la pomme de terre: Maladies à virus
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19490h 9mDocumentaryDir. Maurice Proulx
The story
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.