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Comparison of fungicides for the control of Rhizoctonia solani causing datnping‐off of mung bean (Phaseohis aureus)
Author(s) -
KATARIA H. R.,
GROVER R. K.
Publication year - 1978
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.1744-7348.1978.tb00704.x
Subject(s) - benomyl , carbendazim , fungicide , rhizoctonia solani , biology , horticulture , zineb , damping off , thiram , mycelium , agronomy , mancozeb , seedling
SUMMARY Of 41 fungicides tested in the laboratory, copper carbonate, copper sulphate, mercuric chloride, Agrosan GN, quintozene, kasugamycin, carboxin, pyracar‐bolid, carbendazim, chloroneb, benomyl, Ohric, RH 893 (2‐n‐octyl‐4‐isothiazole‐3‐one) and Terrazole were most inhibitory to the mycelial growth of Rhizoctonia solani on Czapek's agar plates and had EC 50 values of less than 1 μg a.i./ml, while copper oxychloride, Udonkor, zineb, ziram, F 319 (3‐hydroxy‐5‐methyl isoxazole) and anilazine were much less toxic, ziram being least inhibitory with an EC 50 of 214 μg a.i./ml. Of 17 fungicides tested in the greenhouse as seed treatments, thiabendazole, carbendazim, benomyl, thiophanate‐methyl, dichlozoline and Ohric gave 80–90% control of damping‐off of mung bean seedlings. A single soil drench with thiophanate‐methyl and two drenches with benomyl gave about 90% disease control, More seedlings with R. solani infection survived when thiophanate‐methyl was used as a post‐inoculation soil drench than when benomyl or chloroneb were used.