B. Q. Manicom - Citrus and Subtropical Fruit Research Institute, Private Bag X11208, Nelspruit 1200, Republic of South Africa
J. M. Kotze - Microbiology and Plant Pathology, University of Pretoria, Pretoria 0001, Republic of South Africa.
B. Q. Manicom - Citrus and Subtropical Fruit Research Institute, Private Bag X11208, Nelspruit 1200, Republic of South Africa
J. M. Kotze - Microbiology and Plant Pathology, University of Pretoria, Pretoria 0001, Republic of South Africa.