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Minimizing Spray Programs for Control of Grape Diseases Based on Phenological Stages of Susceptibility

Author
Wilcox, Wayne F.
Abstract
1. Determine the optimum timing and minimum number of sprays to reliably control black rot. 2. Determine whether two fungicide sprays, applied immediately before bloom and 2 weeks later, can provide acceptable commercial control of powdery mildew on ‘Concord’ fruit if good spray coverage is obtained. 3. Determine whether applications of the foliar fertilizer monopotassium phosphate (MKP) and a traditional fungicide (a DMI or Abound, if anticipated registration of the latter is forthcoming) can provide acceptable control of powdery mildew on a highly susceptible grape cultivar by targeting the traditional fungicide solely during the period of maximum fruit susceptibility.
Description
NYS IPM Type: Project Report
Date Issued
1997Publisher
New York State Integrated Pest Management Program
Subject
Agricultural IPM; Fruits; Grapes
Type
report