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Volatile fungitoxicants from chemicals containing haloalkylthio groups

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Abstract

Addition of cysteine to the fungicides captan, folpet, dichlofluanid and captafol antagonizes the activity of these fungicides and results in the formation of volatile fungitoxicants. There is no relationship, however, between the vapour action upon reaction with cysteine and the fungitoxicity of these compounds.

Samenvatting

Cysteine heeft een antagonerend effect op de werking van captan, folpet, dichlofluanid en captafol (Tabel 1). Bij proeven in afgesloten ruimtes (twee petri schaaltjes, waarvan de één ongekeerd op de ander, Fig. 1) bleek vooral captan als gevolg van een reactie met cysteine een voorFusarium culmorum toxische damp af te geven, folpet deed dit daarentegen niet, en de twee andere fungiciden alleen in de hoogste concentratie (Tabel 1, Fig. 1). Er is dus weinig verband tussen de fungicide werking en de productie van fungicide dampen als gevolg van de reactie met thiolen.

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Tempel, A. Volatile fungitoxicants from chemicals containing haloalkylthio groups. Netherlands Journal of Plant Pathology 75, 119–122 (1969). https://doi.org/10.1007/BF02137203

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  • DOI: https://doi.org/10.1007/BF02137203

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