Scouting for Grape Powdery Mildew
Auteur : Jay William Pscheidt
Date de publication : 2013
Éditeur : Oregon State University, Extension Service
Nombre de pages : 4
Résumé du livre
"Powdery mildew (Erysiphe necator) is a microscopic fungus that can threaten your business and get ahead of your vineyard management tactics before you even realize it is there. Scouting for powdery mildew should be an important part of your overall management plan. Finding the first occurrence of this disease can help you start or adjust your fungicide program and determine where to concentrate your resources."--Page 1.