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ATTEMPTS TO CONTROL BUNT ( TILLETIA TRITICI , WINT.) IN WHEAT WITH A FORMALIN‐GYPSUM DUST
Author(s) -
STIRRUP H. H.,
CRANFIELD H. T.
Publication year - 1928
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.1744-7348.1928.tb07048.x
Subject(s) - biology , spore , smut , agronomy , crop , horticulture , botany
Summary. A series of experiments over a period of four years is described in which attempts are made to control Bunt in wheat by dressing heavily infected seed with a dry powder or dust composed of formaldehyde and calcined gypsum. Good control was obtained in the first two years when clean seed, artificially infected with bunt spores obtained from crops of different varieties, was used. In the last two years the seed was heavily infected naturally by bunt spores obtained from the same crop. Under these conditions, the formalin‐gypsum powder exercised little or no control of Bunt. The experiments seem to provide some evidence to support the view that Tilletia tritici is a fungus comprising a number of biologic forms. While going to press, attention has been drawn to a paper by J. D. Sayre and R. C. Thomas, which appeared in the October, 1927, number of Science (Vol. LXVI, No. 1713). In this paper the authors give the results of one year's experiments on the control of oat smut using a dry powder incorporating formaldehyde with charcoal or infusorial earth.