| Sizing up septoria W Quaedvlieg, GJM Verkley, HD Shin, RW Barreto, AC Alfenas, WJ Swart, ... Studies in mycology 75, 307-390, 2013 | 197 | 2013 |
| Biology and control of Sphaeropsis sapinea on pinus species in South America WJ Swart, MJ Wingfield detail 30, 40, 1991 | 163 | 1991 |
| Fungal Planet description sheets: 154–213 PW Crous, MJ Wingfield, J Guarro, R Cheewangkoon, M Van der Bank, ... Persoonia: Molecular Phylogeny and Evolution of Fungi 31, 188, 2013 | 110 | 2013 |
| Antifungal properties of Agapanthus africanus L. extracts against plant pathogens G Tegegne, JC Pretorius, WJ Swart Crop Protection 27 (7), 1052-1060, 2008 | 101 | 2008 |
| Fungal Planet description sheets: 281–319 PW Crous, MJ Wingfield, RK Schumacher, BA Summerell, A Giraldo, ... Persoonia: Molecular Phylogeny and Evolution of Fungi 33, 212, 2014 | 94 | 2014 |
| First record of Cryphonectria canker of Eucalyptus in South Africa MJ Wingfield Phytophylactica 21, 311-313, 1989 | 82 | 1989 |
| RAPD marker and isozyme characterization of Sphaeropsis sapinea from diverse coniferous hosts and locations GR Stanosz, WJ Swart, DR Smith Mycological Research 103 (9), 1193-1202, 1999 | 69 | 1999 |
| Economic impact of a post‐hail outbreak of dieback induced by Sphaeropsis sapinea JB Zwolinski, WJ Swart, MJ Wingfield European Journal of Forest Pathology 20 (6‐7), 405-411, 1990 | 69 | 1990 |
| Sphaeropsis sapinea, with special reference to its occurrence on Pinus spp. in South Africa WJ Swart, PS Knox-Davies, MJ Wingfield South African Forestry Journal 135 (1), 1-8, 1985 | 62 | 1985 |
| Fungal Planet description sheets: 128–153 PW Crous, RG Shivas, MJ Wingfield, BA Summerell, AY Rossman, ... Persoonia: Molecular Phylogeny and Evolution of Fungi 29, 146, 2012 | 54 | 2012 |
| Cryphonectria canker of Eucalyptus, an important disease in plantation forestry in South Africa. E Conradie, WJ Swart, MJ Wingfield South African Forestry Journal 152 (1), 43-49, 1990 | 52 | 1990 |
| Factors associated with Sphaeropsis sapinea infection of pine trees in South Africa DAVIES PS Swart, W WJ Phytophylactica 19 (4), 505-510, 1987 | 50 | 1987 |
| Infection, colonization, and disease of Amaranthus hybridus leaves by the Alternaria tenuissima group JT Blodgett, WJ Swart Plant Disease 86 (11), 1199-1205, 2002 | 46 | 2002 |
| Variation among South African isolates of Sphaeropsis sapinea. WJ Swart, MJ Wingfield, MA Palmer, RA Blanchette Phytopathology 81 (5), 489-493, 1991 | 42 | 1991 |
| Species composition of endophytic fungi in Amaranthus hybridus leaves, petioles, stems, and roots JT Blodgett, WJ Swart, SM Louw, WJ Weeks Mycologia 92 (5), 853-859, 2000 | 39 | 2000 |
| Isozyme variability among isolates of Phaeoisariopsis griseola in southern Africa WHP Boshoff, WJ Swart, ZA Pretorius, MM Liebenberg, PW Crous Plant Pathology 45 (2), 344-349, 1996 | 38 | 1996 |
| Sporothrix eucalypti (sp. nov.), a shoot and leaf pathogen ofEucalyptus in South Africa MJ Wingfield, PW Crous, WJ Swart Mycopathologia 123 (3), 159-164, 1993 | 35 | 1993 |
| Intensity of dieback induced by Sphaeropsis sapinea in relation to site conditions JB Zwolinski, WJ Swart, MJ Wingfield European journal of forest pathology 20 (3), 167-174, 1990 | 31 | 1990 |
| First report of the canker pathogen Endothia gyrosa on Eucalyptus in South Africa IP Van der Westhuizen, MJ Wingfield, GHJ Kemp, WJ Swart Plant Pathology 42 (4), 661-663, 1993 | 30 | 1993 |
| Conidial dispersal of Sphaeropsis sapinea in three climatic regions of South Africa. WJ Swart, MJ Wingfield, PS Knox-Davies Plant Disease 71 (11), 1038-1040, 1987 | 30 | 1987 |