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Experiments on the control of white rot (Sclerotium cepivorum Berk.) in onions
Author(s) -
B.Sc. J. R. Booer, Ph.D.,
Publication year - 1945
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.1744-7348.1945.tb06237.x
Subject(s) - sclerotium , biology , bulb , white rot , sowing , liliaceae , horticulture , agronomy , toxicology , botany , lignin
Experiments‐made during 1943 and 1944 on the use of mercurous chloride (calomel) for the control of Sclerotium cepivorum in spring‐sown onions are described. The application of 4% calomel dust to the seed drill at sowing time gave better results than seed treatment. 1 lb. of dust per 25 yd. of seed drill gave good disease control in bulb onions, and 1 lb./so yd. may suffice for salad onions. The relation between disease control and the effective mercury content of the treated soil is discussed.