Hall, Kevin John; Meiklejohn, K.I. (Ian); Arocena, Joselito; Prinsloo, Linda Charlotta; Sumner, P.D. (Paul); Hall, Lyndl(Academy of Science of South Africa, 2007-09)
Olwoch, Jane Mukarugwiza; Van Jaarsveld, A.S.; Scholtz, Clarke H.; Horak, Ivan Gerard(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-03)