Powdery mildew: nm Powdery mildew of the vine is the first cryptogamic disease to enter France*. It made its appearance in 1845 (coming from the United States) in a vineyard greenhouse in Margate, England. It then spread to Belgium and France to reach Languedoc in 1851. It is due to a fungus (like mildew) Uncinula necator or also called Erysiphe necator which develops on all green organs. Everywhere the vines are stained with white inflorescences. We ...
Hello,
You must be a subscriber to read the rest of this article, its links and its images.
The subscription to the complete reading of the site is at 1 €uro per month, without any commitment.
If you already have a current subscription, please log in using the form below.
Otherwise you can subscribe here.