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Comparison of fungicides for control of leaf spot (Septoria apiicola) of celery
Author(s) -
RYAN E. W.,
KAVANAGH T.
Publication year - 1971
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.1744-7348.1971.tb02911.x
Subject(s) - fungicide , maneb , benomyl , septoria , biology , phytotoxicity , horticulture , captan , mancozeb , agronomy , loam , toxicology , soil water , ecology
SUMMARY Of twenty‐one fungicides tested at recommended rates of application for their effectiveness in controlling leaf spot of celery grown in Ireland on peat and on a clay‐loam soil, three formulations containing fentin acetate with maneb and formulations of fentin hydroxide and fentin chloride were most effective. Benomyl was superior to the other non‐tin fungicides tested and, at moderate disease levels, it resulted in marketable yields of celery equal to those recorded after treatment with the organotin compounds. Generally, the organotin compounds and benomyl were followed in descending order of effectiveness by copper oxychloride, captafol, Daconil 2787 and maneb. None of the fungicides tested in the three seasons caused visible symptoms of phytotoxicity and, on disease‐free celery in 1969, none had a significant effect on yield.