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VARIATION IN THE SENSITIVITY OF ISOLATES OF VENTURIA INAEQUALIS (CKE.) WINT. TO FUNGICIDES
Author(s) -
R. G. Ross,
S. A. Hamlin
Publication year - 1961
Publication title -
canadian journal of plant science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.338
H-Index - 59
eISSN - 1918-1833
pISSN - 0008-4220
DOI - 10.4141/cjps61-075
Subject(s) - venturia inaequalis , fungicide , apple scab , captan , biology , orchard , horticulture , agronomy
Fifty isolates of Venturia inaequalis, from diseased apples of several varieties collected in sprayed orchards on various fungicide programs and in unsprayed orchards, were tested for their sensitivity to captan, glyodin, dichlone, phenyl mercury acetate, copper sulphate and sulphur. The isolates were sensitive to a wider dosage range of sulphur than of other fungicides but there was no indication that, in nature, V. inaequalis had developed strains resistant to the fungicides.

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