publication . Conference object . 2004

Evaluation of grapefruit seed extract as natural fungicide to control apple scab in organic apple growing

Trapman, Marc;
Open Access German
  • Published: 01 Jan 2004
C-pro, an experimental fungicide based on grapefruit seed extract was compared to copper oxychloride for the control of apple scab in a field trial. Efficacy and possible phytotoxic effects where accessed. The C-pro formulation was analysed for possible chemical additives by HPTLC. C-pro proved tot be more effective in controlling apple scab then the standard rate of 300 gram copper oxychloride per ha, and gave a better leaf quality and less fruit skin russeting then the standard program of copper oxychloride. However C-pro contained 6.6 % of the synthetic preservation agent benzethonium chloride what excludes C-pro from use in organic agriculture. There is a gr...
Medical Subject Headings: food and beverages
free text keywords: Crop health, quality, protection, Fruit and berries
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Conference object . 2004
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