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WHITE ROT ( SCLEROTIUM CEPIVORUM ) OF ONIONS IN WORCESTERSHIRE WITH SPECIAL REFERENCE TO CONTROL BY SEED TREATMENT WITH CALOMEL
Author(s) -
CROXALL H. E.,
SIDWELL R. W.,
JENKINS J. E. E.
Publication year - 1953
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.1744-7348.1953.tb02374.x
Subject(s) - biology , sclerotium , acre , bulb , white rot , horticulture , agronomy , toxicology , botany , lignin
Observations in Worcestershire have shown that heavy losses of salad onions due to white rot may occur on sites which have not been known to carry a previous susceptible crop. Reasons for this are discussed. During five seasons a good control of the disease has been obtained by treating the seed with pure calomel applied with a resin‐alcohol sticker. The treatment also gave some control of damping off of seedlings due to Corticium solani. Broadcasting 4 % calomel dust at 2½‐3 cwt. per acre was less satisfactory in controlling white rot. In one season promising results were obtained with seed treatment of bulb onions.