The primary goal of the CTHB is to promote the health of trees native to South Africa through the use of biotechnology. To accomplish this, CTHB projects typically consider the pathogens and pests that are associated with native trees and woody hosts. The CTHB also explores the possible effects that factors such as climate change, society, natural forest health and plant genetics may have on the health of native woody resources and ecosystems.

The CTHB is hosted by the Forestry and Agricultural Biotechnology Institute (FABI) at the University of Pretoria. Within FABI it is intimately linked to the Tree Protection Cooperative Programme (TPCP), a research programme that has a track record of more than two decades in dealing with the pests and diseases of commercially important forestry species.

The CTHB is structured as a virtual Centre of Excellence that conducts scientific research via a collaborative network, with the node of the network represented by researchers at UP. In addition to the UP group, this network involves researchers and their postgraduate students from other Higher Education Institutions in South Africa. These institutions include the Agricultural Research Council, University of Stellenbosch, University of Cape Town, University of the Witwatersrand, University of the Free State and Rhodes University.

New Publications

Palmer M, Venter SN, McTaggart AR, Coetzee MPA, Van Wyk S, Avontuur JR, Beukes CW, Fourie G, Santana QC, Van der Nest MA, Blom J, Steenkamp ET. (2019) The synergistic effect of concatenation in phylogenomics: the case in Pantoea. PeerJ 10.7717/peerj.6698 PDF
Wingfield BD, Millar B. (2019) How the open access model hurts academics in poorer countries. The Conversation bit.ly/2Gn3skG
Fell S, De Beer ZW. (2019) The impact of the Polyphagous Shot Hole Borer on Pecan trees in South Africa. SA Pecan 82:11-13. https://bit.ly/2U2Nyj6 PDF
Bradshaw RE, Sim AD, Chettri P, Dupont P-Y, Guo Y, Hunziker L, McDougal RL, van der Nest A, Fourie A, Wheeler D, Cox MP, Barnes I. (2019) Global population genomics of the forest pathogen Dothistroma septosporum reveal chromosome duplications in high dothistromin-producing strains. Molecular Plant Pathology 10.1111/mpp.12791
Naidoo S, Slippers B, Plett JM, Coles D, Oates CN. (2019) The road to resistance in forest trees. Frontiers in Plant Science 10:273. 10.3389/fpls.2019.00273
Martın-Garcia J, Zas R, Solla A, Woodward S, Hantula J, Vainio EJ, Mullett M, Morales-Rodrıguez M, Vannini A, Martınez-Alvarez P, Pinto G, Alves A, Amaral J, Wingfield MJ, Fourie G, Steenkamp ET, Ahumada R, Sera B, Sanz-Ros AV, Raposo R, Elvira-Recuenco M, Iturritxa E, Gordon TR , Diez JJ. (2019) Environmentally friendly methods for controlling pine pitch canker . Plant Pathology 10.1111/ppa.13009
Sadiković D, Piškur B, Barnes I, Hauptman T, Diminić D, Wingfield MJ, Jurc D. (2019) Genetic diversity of the pine pathogen Lecanosticta acicola, in Slovenia and Croatia. Plant Pathology 10.1111/ppa.13017
Haavik LJ, Hurley BP, Allison JD. (2019) Effect of Sirex noctilio (Hymenoptera: Siricidae) attack density on Pinus sylvestris (Pinaceae) survival. Canadian Entomologist 10.4039/tce.2019.12
Wondafrash M, Slippers B, Hurley BP, Garnas J. (2019) Local antagonism and resource partitioning between two invasive pine plantation pests. Agricultural and Forest Entomology 10.1111/afe.12330 PDF
Van den Berg N, Du Toit M, Morgan SW, Fourie G, De Beer ZW. (2019) First Report of Fusarium euwallaceae on Persea americana in South Africa. Plant Disease 10.1094/PDIS-10-18-1818-PDN
Nel WJ, Duong TA, De Beer ZW, Wingfield MJ. (2019) Black root rot: A long known but little understood disease. Plant Pathology 10.1111/ppa.13011
van der Nest MA, Wingfield MJ, McTaggart AR, Van Wyk S, De Vos L, Trollip C, Santana QC, Naidoo K, Dong TA, Wilken PM, Chan W-Y, Palmer M, Soal NA, Roodt D, Steenkamp ET, Wingfield BD. (2019) Genomic analysis of the aggressive tree pathogen Ceratocystis albifundus. Fungal Biology 10.1016/j.funbio.2019.02.002 PDF
Zlatkovic M, Wingfield MJ, Jami F, Slippers B. (2019) Genetic uniformity characterizes the invasive spread of Neofusicoccum parvum and Diplodia sapinea in the Western Balkans. Forest Pathology 49:e12491. 10.1111/efp.12491
Zumaquero A, Martinez-Ferri E, Matas AJ, Reeksting B, Olivier NA, Pliego-Alfaro F, Barcelo A, van den Berg N, Pliego C. (2019) Rosellinia necatrix infection induces differential gene expression between tolerant and susceptible avocado rootstocks. PLoS ONE 14(2):e0212359. 10.1371/journal.pone.0212359
Backer R, Naidoo S, van den Berg N. (2019) The NONEXPRESSOR OF PATHOGENESIS-RELATED GENES 1 (NPR1) and Related Family: Mechanistic Insights in Plant Disease Resistance. Frontiers in Plant Science 10:102. 10.3389/fpls.2019.00102
du Plessis E, Granados GM, Barnes I, Ho WH, Alexander BJR, Roux J, McTaggart AR. (2019) The pandemic strain of Austropuccinia psidii causes myrtle rust in New Zealand and Singapore. Australasian Plant Pathology 48:253-256. 10.1007/s13313-019-0624-x
Stevens GG, Pérez-Fernández MA, Morcillo RJL, Kleinert A, Hills P, Brand DJ, Steenkamp ET, Valentine AJ. (2019) Roots and nodules responds differently to P starvation in the mediterranean-type legume Virgilia divaricata. Frontiers in Plant Science 10 10.3389/fpls.2019.00073
Fitza KNE, Garnas JR, Lombardero MJ, Ayres MP, Krivak-Tetley FE, Ahumada R, Hurley BP, Wingfield MJ, Slippers B. (2019) The global diversity of Deladenus siricidicola in native and non-native populations. Biological Control 10.1016/j.biocontrol.2019.01.014
Pham NQ, Barnes I, Chen SF, Liu FF, Dang NQ, Pham TQ, Lombard L, Crous PW, Wingfield MJ. (2019) Ten new species of Calonectria from Indonesia and Vietnam. Mycologia 111:78-102. 10.1080/00275514.2018.1522179 PDF
Nsibo DL, Barnes I, Kunene NT, Berger DK. (2019) Influence of farming practices on the population genetics of the maize pathogen Cercospora zeina in South Africa. Fungal Genetics and Biology 125:36-44. 10.1016/j.fgb.2019.01.005
Conlon BH, Aanen DK, Beemelmanns C, De Beer ZW, De Fine Licht HH, Gunde-Cimerman N, Schiøtt M, Poulsen M. (2019) Reviewing the taxonomy of Podaxis: opportunities for understanding extreme fungal lifestyles. Fungal Biology 123(3):183-266. 10.1016/j.funbio.2019.01.001
Kanzi AM, Steenkamp ET, Van der Merwe NA, Wingfield BD. (2019) The mating system of the Eucalyptus canker pathogen Chrysoporthe austroafricana and closely related species. Fungal Genetics and Biology 123:41-52. 10.1016/j.fgb.2018.12.001 PDF
Liu FF, Li GQ, Roux J, Barnes I, Wilson AM, Wingfield MJ, Chen SF. (2019) Nine novel species of Huntiella from southern China with three distinct mating strategies and variable levels of pathogenicity. Mycologia 110:1145-1171. 10.1080/00275514.2018.1515450 PDF
Kuhn DN, Livingstone DS, Richards JH, Manosalva P, van den Berg N, Chambers AH. (2019) Application of genomic tools to avocado (Persea americana) breeding: SNP discovery for genotyping and germplasm characterization. Scientia Horticulturae 246:1-11. 10.1016/j.scienta.2018.10.011
Aylward J, Roets F, Dreyer LL, Wingfield MJ. (2019) Teratosphaeria stem canker of Eucalyptus: two pathogens, one devastating disease. Molecular Plant Pathology 20(1):8-19. 10.1111/mpp.12758
Palmer M, Venter SN, Coetzee MPA, Steenkamp ET. (2019) Prokaryotic species are sui generis evolutionary units. Systematic and Applied Microbiology 42(2):145-158. 10.1016/j.syapm.2018.10.002
Fru FF, Steenkamp ET, Wingfield MJ, Roux J. (2019) High genetic diversity of Fusarium circinatum associated with the first outbreak of pitch canker on Pinus patula in South Africa. Southern Forests: a Journal of Forest Science 10.2989/20702620.2018.1496312
Burgess TI, Tan YP, Garnas J, Edwards J, Scarlett KA, Shuttleworth LA, Daniel R, Dann EK, Parkinson LE, Dinh Q, Shivas RG, Jami F. (2019) Current status of the Botryosphaeriaceae in Australia. Australasian Plant Pathology 10.1007/s13313-018-0577-5 PDF
Tan YP, Shivas RG, Marney TS , Edwards J , Dearnaley J , Jami F , Burgess TI. (2019) Australian cultures of Botryosphaeriaceae held in Queensland and Victoria plant pathology herbaria revisited. Australasian Plant Pathology 10.1007/s13313-018-0559-7 PDF
Meurisse N, Rassati D, Hurley BP, Brockerhoff EG, Haack RA. (2019) Common pathways by which non-native forest insects move internationally and domestically. Journal of Pest Science 10.1007/s10340-018-0990-0