Efficiency of inorganic fungicides against the formation of Erysiphe necator chasmothecia in vineyards.

ABSTRACT:

Background

A reduction in chasmothecia, an important inoculum of grape powdery mildew (Erysiphe necator Schwein.), is essential for disease control in vineyards; the use of fungicides during the formation of chasmothecia on vine leaves, late in the growing season, may accomplish this. Inorganic fungicides, such as sulphur, copper, and potassium bicarbonate, are very useful for this purpose because of their multisite mode of action. The aim of this study was to evaluate chasmothecia reduction using different fungicide applications late in the growing season in commercially managed vineyards and in an exact application trial.

Results

Chasmothecia on vine leaves were reduced in commercial vineyards by four copper (P = 0.01) and five potassium bicarbonate (P = 0.026) application

SUBMITTER: Moth S 

PROVIDER: S-EPMC10952470 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature