Studies on the black spot disease of citrus caused by Guignardia Citricarpa Kiely with particular reference to its epiphytology and control at Letaba
Please read the Summary and Conclusions(04chapter4) on pages 141-143 === Thesis (DSc (Agriculture))--University of Pretoria, 1963. === Microbiology and Plant Pathology === unrestricted
Internet
http://hdl.handle.net/2263/23891Kotze, J 1963, Studies on the black spot disease of citrus caused by Guignardia Citricarpa Kiely with particular reference to its epiphytology and control at Letaba, DSc thesis, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/23891 >
http://upetd.up.ac.za/thesis/available/etd-01182007-173900/