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Effect of Paraflan Wax on Field Control of Potato Blight by Copper Oxychloride
Author(s) -
McIntosh A. H.,
Eveling D. W.,
Melville S. C.
Publication year - 1969
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1969.tb00495.x
Subject(s) - wettable powder , wax , copper , blight , biology , fungicide , chemical control , paraffin wax , agronomy , horticulture , materials science , metallurgy , pesticide , biochemistry
SUMMARY A formulation of copper oxychloride, containing emulsified paraffin wax, was compared with a commercial wettable powder in conventional field spraying trials for control of potato bhght ( Phvtophthora infestans ). Spraying with the wax formulation usually gave a significant increase in yield under conditions where the wettable powder did not. However, differences in copper residues on the foliage, and in control of blight, were slight. The wax may offset the effects of damage done to the Plants by the copper oxychloride.