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Les ennemis de la pomme de terre: Maladies à virus (1949)

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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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Subtitle: English France Germany Spain Dutch Korea Japan ETC.

ປ່ອຍຕົວ: Jan 01, 1949

ຄວາມນິຍົມ: 0.493

ພາສາ: Français

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