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

Content: 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.

Countries:

Genres:

Documentary

Runtime:

9 minutes

Year:

1949

Directors:

Maurice Proulx

Crews:

Director