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Investigations on fungitoxic derivatives of salicylaldehyde
Author(s) -
SMITH R. J.,
READ W. H.
Publication year - 1961
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1961.tb03610.x
Subject(s) - powdery mildew , biology , salicylaldehyde , mildew , botany , horticulture , stereochemistry , chemistry , schiff base
SUMMARY A number of halogenated derivatives of salicylideneaniline were synthesized, several of which showed high eradicative activity against cucumber powdery mildew when sprayed on to young pot plants. The two most promising compounds were 3‐bromo‐and 3‐chloro‐salicylideneaniline. These were subjected to commercial‐scale trial, but, although more effective (at 0.08–0.10%) than standard 2:4‐dinitro‐6‐(1‐methyl‐heptyl)phenyl crotonate (‘Karathane’) sprays in controlling severe mildew infection, they showed phytotoxic effects on mature cucumber plants. Their toxicity to certain other fungi is outlined in the appendix.