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Experiments with MBC derivatives for the control of Dutch elm disease
Author(s) -
GIBBS J. N.,
CLIFFORD D. R.
Publication year - 1974
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.1744-7348.1974.tb01510.x
Subject(s) - biology , inoculation , dutch elm disease , hydrochloride , horticulture , botany , biochemistry
SUMMARY Preparations of methyl benzimidazol‐2‐ylcarbamate (MBC) hydrochloride stabilized with HC1, MBC nitrate stabilized with lactic acid and MBC bisul‐phate stabilized with KHS0 4 were made from technical MBC. As it was the least phytotoxic to elm shoots, the hydrochloride was selected for field experiments on the control of Dutch elm disease using 6 m elms. In protectant experiments using 1.51 of 0.25 or 0.5 % MBC per tree, only five of eighteen injected trees became infected while all the control trees were severely diseased. In curative experiments, injection with 0.25 % MBC 2 and 4 wk after inoculation with Ceratocystis ulmi kept symptoms to < 1 and 5% respectively, compared with 76% in untreated inoculated trees. MBC at 0.5 % Save similar results.