Metaxanine, A Systemic Fungicide Against Plasmopara Viticola on Wine Grapes: Disease Control, Residues and Effect on Fermentation and Wine Quality

  • P. G. Marais Oenological and Viticultural Research Institute, Stellenbosch
  • A. Tromp Oenological and Viticultural Research Institute, Stellenbosch
DOI: https://doi.org/10.21548/2-2-2398

Abstract

The systemic fungicide metaxanine/methyl D, L-N-(2,6-dimethyl-phenyl)-N-(2 methoxyacetyl) alaninate/, was compared with mancozeb for the control of Plasmopara viticola (B x C) Berl. & de T. on grapevines in the Western Cape Province of South Africa. The systemic fungicide gave better control than
mancozeb. Good control was obtained with applications of the systemic fungicide at 21 day intervals, despite the fact that weather conditions were particularly favourable for disease development. Residues of metaxanine recovered from grapes were low and did not affect either the onset, or the rate of fermentation of grape juice, nor did it affect wine quality.

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Published
2017-05-12
Issue
Vol. 2 No. 2 (1981)
Section
Articles

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