Fungicidal activity and chemical constitution: XVII.—Activity of various 4-(1-substituted n-alkyl)-2,6-dinitrophenols and esters against apple powdery mildew |
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| Authors: | Diana M Fieldgate Carolyn S James R J W Byrde D Woodcock |
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| Abstract: | Members of series of 4-(cyclobutylalkyl, cyclohexylalkyl and benzylalkyl)-2,6-dinitrophenols were tested in a glasshouse against apple powdery mildew caused by Podosphaera leucotricha. Three series involving a cyclohexyl substituent separated from the phenolic nucleus by one, two or three methylene groups were of the same order of activity, but replacement of this substituent by a phenyl group in one case, resulted in a marked decrease in activity. Of a number of esters tested, none was significantly more active than the corresponding phenol. |
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