Browsing Doctoral Degrees (Plant Pathology) by Author "Laing, Mark Delmege."
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The epidemiology and control of Leptosphaeria maculans cause of Crucifer Blackleg, in KwaZulu-Natal. Laing, Mark Delmege. (1996)The perfect stage of Leptosphaeria maculans is reported for the first time in South Africa. Viable pseudothecia and pycnidia were found on dead, weathered tissue, sometimes in close association, whereas only pycnidia ...