The Enemies of the Potato: Virus Diseases (1949)

Originaltitel: Les ennemis de la pomme de terre: Maladies à virus

Længde: 9 minutter

• Instruktion: Maurice Proulx
• Manuskript:
• Fotografi:
• Musik:

Streaming-leverandør: 🖕

Links: TMDb IMDb

Fabula [+]

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.

Mærkater

Ændringer

Observationer