All field trips and field extension work undertaken by the staff and students of the CTHB is coordinated by Prof Jolanda Roux. She also ensures that reports on these trips and research findings are communicated to relevant stakeholders. The extension component of the CTHB involves the presentation of talks at research meetings and field days, publication of articles in newsletters and newspapers as well as radio interviews to educate the public regarding tree health.

Research in the Kruger National Park (KNP)

In the latter part of 2004, the CTHB formed an alliance with the KNP in order to study the diseases of trees in the park.

One of the main projects constituting this research agreement was to investigate fungi and insects associated with wounds on trees caused by elephants in KNP. Additional projects have been initiated to identify any possible serious tree diseases present in the reserve.

(See "Information Nuggets" for more detail)

African collaborations

Insect pests and pathogens do not recognize international boundaries, making it crucial for collaboration between different countries in order to effectively manage tree diseases. There has thus been a strong drive by the TPCP and CTHB to build collaborations with researchers in other African countries, including Cameroon, Namibia, Malawi, Mozambique, Zambia and Zimbabwe. Several disease survey trips are regularly undertaken to these countries, where most activities focus on the health of Myrtales, Adansonia digitata and other savanna tree species.

(See "Information Nuggets" for more detail)

Pest and Pathogen Diagnostic Clinic

The TPCP and CTHB maintain a world-class disease and insect pest Diagnostic Clinic. In addition to providing an invaluable service to the South African Forestry Industry, the Diagnostic Clinic also provides stakeholders with the capacity to identify insect pest and disease outbreaks associated with native trees.

For more information about the disease and insect pest Diagnostic Clinic, please visit: TPCP Services.

New Publications

Cho SE, Seo ST, Nam Y, Wingfield MJ, Lee DY. (2024) Chalaropsis pruni sp. nov. (Ceratocystidaceae), a new species from Prunus serrulata var. pubescens in South Korea. Phytotaxa 671(2):191-197. 10.11646/phytotaxa.671.2.8
Balocchi F, Wingfield MJ, Paap T. (2024) First Report of Fusarium Wilt and Pink Rot of Phoenix canariensis in South Africa. Forest Pathology 10.1111/efp.70001 PDF
Makunde PT, Slippers B, Hurley BP. (2024) Exploring the diversity of leafrollers (Lepidoptera: Tortricidae) associated with eucalypts in South African forestry nurseries and plantations, with a new report of Strepsicrates sp.. Southern Forests 86(4):1-8. 10.2989/20702620.2024.2394219
Fuchs T, Visagie CM, Wingfield BD, Wingfield MJ. (2024) Sporothrix and Sporotrichosis: A South African perspective on a growing global health threat. Mycoses 67(10):e13806. 10.1111/myc.13806
van Heerden A, Pham NQ, Wingfield BD, Wingfield MJ, Wilken PM. (2024) Six type-I PKS classes and highly conserved melanin and elsinochrome gene clusters found in diverse Elsinoë species. BMC Genomics 25:990. 10.1186/s12864-024-10920-z
Makunde PT, Slippers B, Hurley BP. (2024) First report of the giant conifer aphid, Cinara pinivora (Wilson) and the Monterey pine aphid, Essigella californica (Essig) (Hemiptera: Aphididae) in South Africa. Southern Forests 86:1-5. 10.2989/20702620.2024.2394218
Pham NQ, Wingfield BD, Barnes I, Gazis R, Wingfield MJ. (2024) Elsinoe species: The rise of scab diseases. Plant Pathology 10.1111/ppa.14015
Vilanova L, Caballol M, Zhang K, Olson Å, Barnes I, Wingfield MJ, Oliva J. (2024) New simple sequence repeat markers reveal undetected diversity in Spanish and Californian Diplodia sapinea populations. Fungal Genetics and Biology 175:103937. 10.1016/j.fgb.2024.103937
Hough B, Wingfield B, Read DA. (2024) Identification and characterization of mycoviruses in transcriptomes from the fungal family Ceratocystidaceae. Virus Genes 10.1007/s11262-024-02112-4 PDF
Bose T, Mahomed TG, Mbatha KC, Joubert JC, Hammerbacher A. (2024) Tissue ontogeny and chemical composition influence bacterial biodiversity in the wood and shoot tip of Populus nigra. Plant Biology :1-11. 10.1111/plb.13724
Aylward J, Marincowitz S, Basson RJ, Rippon W, Wingfield MJ, Roets F. (2024) Four new Geosmithia species from bark beetles infesting indigenous South African trees. Fungal Biology 10.1016/j.funbio.2024.09.006
Nel WJ, Randolph C, Paap T, Hurley BP, Slippers B, Barnes I, Wingfield MJ. (2024) Fusarium species associated with Euwallacea xanthopus in South Africa, including two novel species. Mycologia :1-20. 10.1080/00275514.2024.2394758
Read DA, Pietersen G, Slippers B, Steenkamp E. (2024) Genomic characterization of novel viruses associated with Olea europaea L. in South Africa. Archives of Virology 169 10.1007/s00705-024-06132-1 PDF
Swalarsk-Parry BS, De Vos L, Fru FF, Santana QC, van der Nest MA, Wingfield BD, Wingfield MJ, Herron DA, Ramaswe JB, Dewing C, Sayari M, van der Merwe NA, van Wyk S, Lane FA, Wilson AM, Adegeye OO, Soal NC, Price J-L, Steenkamp ET. (2024) Wide variation in aggressiveness and growth in South African Fusarium circinatum isolates with geographical origin as the primary determinant. Southern Forests: a Journal of Forest Science 10.2989/20702620.2024.2363749
Lin L, Fan XL, Groenewald JZ, Jami F, Wingfield MJ, Voglmayer H, Jaklitsch W, Castlebury LA, Tian CM, Crous PW. (2024) Cytospora: an important genus of canker pathogens. Studies in Mycology 109:323-401. PDF
Cortina-Escribano M, Veteli P, Wingfield MJ, Wingfield BD, Coetzee MPA, Vanhanen H, Linnakoski R. (2024) Phylogenetic analysis and morphological characteristics of lactate Ganoderma specimens in Finland. Mycologia 10.1080/00275514.2024.2381424
van der Nest MA, Steenkamp ET, De Vos L, Wienk R, Swart V, van den Berg N. (2024) Complete mitochondrial genome sequence of the white root rot pathogen Dematophora necatrix (Xylariaceae: Xylariales). Mitochondrial DNA Part B: Resoures 9(9):1207-1212. 10.1080/23802359.2024.2403411
Nkomo T, Bose T, Wingfield BD, Knoppersen R, Mbhele O, Nemesio‐Gorriz M, Rodas CA, Paetz C, Cilliers CT, Ferreira MA, Hammerbacher A. (2024) Geographic location shapes fungal communities associated with Epidendrum roots. Mycological Progress 23:54. 10.1007/s11557-024-01990-0
Visagie CM, Houbraken J, Yilmaz N. (2024) The re-identification of Penicillium and Talaromyces (Eurotiales) catalogued in South African culture collections. Persoonia 53:29–61. 10.3767/persoonia.2024.53.02
Ribeiro MF, Cavallini G, Solce GN, Favoreto AL, Passos JRDS, Hurley BP, Wilcken CF. (2024) Polyandry contributes to Gonipterus platensis (Coleoptera: Curculionidae) rearing. PeerJ 12:e17929. 10.7717/peerj.17929