Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Integration of strobilurins and other fungicides for the control of powdery mildew on grapes

Integration of strobilurins and other fungicides for the control of powdery mildew on grapes The strobilurin fungicides Amistar (azoxystrobin) and Flint (trifloxystrobin) were evaluated in 1999/00 and 2000/01 in programs that included various combinations with Thiovit (sulfur) and Topas (penconazole) for the control of powdery mildew on grapes. In most experiments the application of 6 sprays per season that included Thiovit (3 g/L) followed by various combinations of Topas (0.125 mL/L), Amistar (0.5 g/L), Flint (0.15 g/L) and Thiovit (2 g/L) controlled powdery mildew. Although strobilurins were applied from flowering to after fruit set, the order in which various fungicides were applied had little influence on the level of powdery mildew control. In experiments where the bunch or leaf area diseased was 60% or higher in unsprayed plots, the severity was less than 5% where combinations of Thiovit and Topas with either Amistar or Flint were applied. In one experiment, 3 applications of either Legend (quinoxyfen) or Prosper (spiroxamine) following 2 applications of Thiovit also provided excellent control of powdery mildew. In programs where the application of Amistar and Flint were directly compared, Flint was the most effective fungicide for controlling powdery mildew. In the experiments where downy mildew also developed, Amistar was more effective than Flint in controlling this disease. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australian Journal of Grape and Wine Research Wiley

Integration of strobilurins and other fungicides for the control of powdery mildew on grapes

Download PDF
8 pages

Loading next page...
 
/lp/wiley/integration-of-strobilurins-and-other-fungicides-for-the-control-of-nS035M18vh
Publisher
Wiley
Copyright
Copyright © 2002 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1322-7130
eISSN
1755-0238
DOI
10.1111/j.1755-0238.2002.tb00222.x
Publisher site
See Article on Publisher Site

Abstract

The strobilurin fungicides Amistar (azoxystrobin) and Flint (trifloxystrobin) were evaluated in 1999/00 and 2000/01 in programs that included various combinations with Thiovit (sulfur) and Topas (penconazole) for the control of powdery mildew on grapes. In most experiments the application of 6 sprays per season that included Thiovit (3 g/L) followed by various combinations of Topas (0.125 mL/L), Amistar (0.5 g/L), Flint (0.15 g/L) and Thiovit (2 g/L) controlled powdery mildew. Although strobilurins were applied from flowering to after fruit set, the order in which various fungicides were applied had little influence on the level of powdery mildew control. In experiments where the bunch or leaf area diseased was 60% or higher in unsprayed plots, the severity was less than 5% where combinations of Thiovit and Topas with either Amistar or Flint were applied. In one experiment, 3 applications of either Legend (quinoxyfen) or Prosper (spiroxamine) following 2 applications of Thiovit also provided excellent control of powdery mildew. In programs where the application of Amistar and Flint were directly compared, Flint was the most effective fungicide for controlling powdery mildew. In the experiments where downy mildew also developed, Amistar was more effective than Flint in controlling this disease.

Journal

Australian Journal of Grape and Wine Research – Wiley

Published: Jul 1, 2002

References

  • Adoption of a system for identifying grapevine growth stages
    Coombe, Coombe
  • Distributions of sensitivities to three sterol demethylation inhibitor fungicides among populations of Uncinula necator sensitive and resistant to triadimefon
    Erickson, Erickson; Wilcox, Wilcox
  • Occurrence of resistance in Uncinula necator to triadimefon, myclobutanil and fenarimol in California grape vines
    Gubler, Gubler; Ypema, Ypema; Ouimetter, Ouimetter; Bettiga, Bettiga
  • Uses and challenges of novel compounds for plant disease control
    Gullino, Gullino; Leroux, Leroux; Smith, Smith
  • Resistance to fungicides in the QOI‐Star cross resistance group: current perspectives
    Heaney, Heaney; Hall, Hall; Davies, Davies; Olaya, Olaya
  • Trifloxystrobin, a new strobilurin fungicide for use in apples and grapes
    Laird, Laird; Tally, Tally; Margot, Margot; King, King; Knauf‐Beiter, Knauf‐Beiter
  • Sensitivity of Uncinula necator to penconazole in European countries
    Stenden, Stenden; Forster, Forster; Steva, Steva
  • Integration of DMI fungicides and sulfur for the control of powdery mildew
    Wicks, Wicks; Emmett, Emmett; Erson, Erson
  • Evaluation of fungicide programs for control of grapevine powdery mildew, 1999
    Wilcox, Wilcox; Riegel, Riegel
  • Comparative physical modes of action of azoxystrobin, mancozeb, and metalaxyl against Plasmopara viticola (grapevine downy mildew)
    Wong, Wong; Wilcox, Wilcox