FABI News

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FABI in a nutshell

Research Features

Services offered to member companies of the TPCP include the following:

Insect pest and disease diagnostic services

Diagnostic services of the TPCP function through foresters submitting samples to the programme for analyses. Such samples are usually received after discussion between research staff and the foresters concerned, so that appropriate material is submitted. Identification of insect pests and pathogens are conducted using state of the art techniques from plant tissues, soil and water samples. Potential pathogens are often also tested for their ability to cause disease. An extensive reference fungal culture collection including tree pathogens collected in South Africa during the course of the past 20 years is also maintained, such that comparative studies and pathogen variation can be studied in the longer term. Insect pests are also identified where possible, or sent to experts for identification in the case of uncommon or new pests. Advice is provided to foresters based on these investigations and identifications.

Contacts for the diagnostic clinic.

When sending samples to the diagnostic clinic, please follow the instructions for sample preparation carefully and complete the submission form providing as much detail as possible about the problem.

Online submission of the FABI Diagnostic Clinic: Sample Information Sheet

A research programme focused on pests and diseases of priority to members

Research on pests and diseases of pine, eucalypts and wattle is conducted by postgraduate students together with permanent staff of the TPCP in modern laboratories specifically designed and equipped for tree protection research. Modern equipment for basic plant pathology and entomology research, as well as state-of-the-art DNA-based technologies, are used in an effort to produce world class results. Research includes the identification of new pests and pathogens, as well as studies on the biology these organisms to inform and guide management strategies to avoid losses. For example, through determining periods of spore release in Sphaeropsis sapinea, it has been possible to provide advice on suitable times for pruning of pines.

Other priorities are to develop and implement techniques for rapidly screening tree species and clones for resistance to disease. Screening techniques include inoculation under greenhouse and field conditions, but also various physiological and molecular techniques. Research into a variety of disease control strategies including cultural, chemical and biological control also forms a significant part of this programme.

All scientific data generated are published in peer-reviewed academic journals. These publications are all listed on the FABI website, and pdf's can be requested from any of the authors involved.

Monitoring of pests and diseases to gain a perspective of their relative importance

An important component of the TPCP is to monitor pest and disease development in plantations, in permanent sampling plots and through country-wide surveys. Data derived from these studies ensure the early discovery of new pests and diseases and also lead to a long term perspective on the importance of various pests and diseases.

Education of field foresters and students

Regular training courses for field foresters are provided and these ensure that knowledge and technology derived from research in the TPCP is transferred to the plantation level. In addition, forestry students are provided with lectures in the field of tree protection. Postgraduate students undertaking research in this field also ensure long term capacity building in this field.

 

 

New Publications

Marais I, Buitendag C, Duong TA, Crampton BG, Theron J, Kidanemarium D, Berger DK. (2024) Double-stranded RNA uptake for the control of the maize pathogen Cercospora zeina. Plant Pathology Online first:1-11. 10.1111/ppa.13909
van Heerden A, Pham NQ, Wingfield BD, Wingfield MJ, Muro Abad JI, Durán A, Wilken PM. (2024) LAMP assay to detect Elsinoë necatrix; an important Eucalyptus shoot and leaf pathogen. Plant Disease 10.1094/PDIS-01-24-0086-RE
Silva GA, Oliveira MES, Rêgo GMS, Wingfield BD, Wingfield MJ, Ferreira MA. (2024) Chrysoporthe brasiliensis sp. nov. pathogenic to Melastomataceae in southeast Brazil. Fungal Biology 10.1016/j.funbio.2024.04.001
Fick A, Swart V, Bombarely A, van den Berg N. (2024) Comparative transcriptional analysis of Persea americana MYB, WRKY and AP2/ERF transcription factors following Phytophthora cinnamomi infection. Molecular Plant Pathology 25(4):e13453. 10.1111/mpp.13453 PDF
Van Lill M, Venter SN, Muema EK, Palmer M., Beukes CW, Chan WY, Steenkamp ET. (2024) SeqCode facilitates naming of South African rhizobia left in limbo. Systematics and Applied Microbiology 47(2-3):126504. 10.1016/j.syapm.2024.126504 PDF
Visagie CM, Meyer H, Yilmaz N. (2024) Maize–Fusarium associations and their mycotoxins: Insights from South Africa. Fungal Biology 10.1016/j.funbio.2024.03.009
Elisa P, Allison J, Hurley BP, Slippers B, Fourie G. (2024) Lethal and sublethal effects of insecticides on Bathycoelia distincta (Heteroptera: Pentatomidae). African Entomology 32: e16992:1-9. 10.17159/2254-8854/2024/a16992
Pietersen G, Morgan S, Read DA. (2024) First report of Citrus concave gum-associated virus (CCGaV) on apple (Malus spp.) in South Africa. Journal of Plant Pathology 10.1007/s42161-024-01629-9
Dankie VN, Steenkamp ET, De Vos L, Swalarsk-Parry BS, Dewing C, Fru F, Wilken PM, Mchunu NP, Wingfield BD, Wingfield MJ, van der Nest MA. (2024) Growth, pathogenicity and sexual fertility of the African tree pathogen Ceratocystis albifundus. Journal of Plant Pathology :1-11. 10.1007/s42161-024-01634-y
Abkallo HM, Arbuthnot P, Auer TO, Berger DK, Burger J, Chakauya E, Concordet J-P, Diabate A, Di Donato V, Groenewald J-H, Guindo A, Koekemoer LL, Nazare F, Nolan T, Okumu F, Orefuwa E, Paemka L, Prieto-Godino L, Runo S, Sadler M, Tesfaye K, Tripathi L, Wondji C. (2024) Making genome editing a success story in Africa. Nature Biotechnology :1-4. https://rdcu.be/dBJUa
Robert R, Robberste N, Thompson GD, Read DA. (2024) Characterization of macadamia ringspot‑associated virus, a novel Orthotospovirus associated with Macadamia integrifolia in South Africa. European Journal of Plant Pathology 10.1007/s10658-024-02832-1 PDF
Hiroyuki S, Marincowitz S, Roux J, Paap T, Wingfield BD, Wingfield MJ. (2024) A new genus and species of Cryphonectriaceae causing stem cankers on plantation eucalypts in South Africa. Plant Pathology :1-14. 10.1111/ppa.13883 PDF
Mapfumo P, Buthelezi S, Archer E, Swanevelder DZH, Wilken PM, Creux N. (2024) In-field climatic factors driving Sclerotinia head rot progression across different sunflower planting dates. Plant Pathology 10.1111/ppa.13873
Price J-L, Visagie CM, Meyer H, Yilmaz N. (2024) Fungal species and mycotoxins Associated with Maize ear rots collected from the Eastern Cape in South Africa. Toxins 16:95. 10.3390/toxins16020095
Tarigan M, Wingfield MJ, Jami F, Marpaung YMAN, Duran A, Pham NQ. (2024) Pathogenicity of Chrysoporthe deuterocubensis on eucalypts in Indonesia. Southern Forests: a Journal of Forest Science 10.2989/20702620.2023.2279054
Caballol M, Serradó F, Barnes I, Camarero JJ, Valeriano C, Colangelo M, Oliva J. (2024) Climate, host ontogeny and pathogen structural specificity determine forest disease distribution at a regional scale. Ecography :e06974. 10.1111/ecog.06974 PDF
MISEV Consortium, Motaung T. (2024) Minimal information for studies of extracellular vesicles (MISEV2023): From basic to advanced approaches. Journal of Extracellular Vesicles 13(2):e12404. 10.1002/jev2.12404
Pham NQ, Suzuki H, Duong TA, Wingfield BD, Barnes I, Duran A, Wingfield MJ. (2024) Cryptic sexual reproduction in an emerging Eucalyptus shoot and foliar pathogen. Plant Pathology 10.1111/ppa.13876
Francinah M. Ratsoma, Nthabiseng Z. Mokoena, Quentin C. Santana, Brenda D. Wingfield, Emma T. Steenkamp, Thabiso E. Motaung. (2024) Characterization of the Fusarium circinatum biofilm environmental response role. Journal of Basic Microbiology 00(00):1-16. 10.1002/jobm.202300536
Morrison EW, Duong TA, Garnas JR. (2024) A high-quality draft genome sequence of Neonectria faginata, causative agent of beech bark disease of Fagus grandifolia. Microbiology Resource Announcements 10.1128/mra.01048-23
Roberts E, Paap T, Roets F. (2024) Chemical control of the Polyphagous Shothole Borer beetle (PSHB, Euwallacea fornicatus) and Fusarium euwallaceae in American sweetgum (Liquidambar styraciflua). Journal of Plant Pathology 10.1007/s42161-023-01583-y
Fitza KNE, Allison J, Slippers B, Chingandu N, Reed SE. (2024) Diversity and potential sources of introduction of the Beech leaf nematode (Litylenchus crenatae< mccannii) to Ontario, Canada. Canadian Journal of Plant Pathology
Engelbrecht K, Raubenheimer I, Paap T, Neethling E, Roets F. (2024) Detection of Fusarium euwallaceae and its vector Euwallacea fornicatus on Pear (Pyrus communis) and in deciduous fruit orchards in South Africa. Australasian Plant Disease Notes 19(1) 10.1007/s13314-023-00524-z PDF
Visagie CM, Meijer M, Kraak B, Groenewald M, Houbraken J, Theelen B, Vorst Y, Boekhout T. (2024) Blastobotrys nigripullensis, a new yeast species isolated from a fungal outbreak on an ancient Roman shipwreck in the Netherlands. Antonie Van Leeuwenhoek 117:22. 10.1007/s10482-023-01898-x
Hlongwane NL, Dzomba EF, Hadebe K, van der Nest MA, Pierneef R, Muchadeyi FC. (2024) Identification of signatures of positive selection that have shaped the genomic landscape of South African pig populations. Animals 14:235. 10.3390/ani14020236
De Vos L, van der Nest MA, Santana QC, van Wyk S, Leeuwendaal KS, Wingfield BD, Steenkamp ET. (2024) Chromosome-level assemblies for the pine pitch canker pathogen Fusarium circinatum. Pathogens 13(1):70. 10.3390/pathogens13010070
Chen BY, Wu WX, Chen SF. (2024) Wide distribution of Teratosphaeria epicoccoides and T. destructans associated with diseased Eucalyptus leaves in plantations in Southern China. Microorganisms 12:129. 10.3390/microorganisms12010129
Visagie CM, Yilmaz N, Kocsubé S, Frisvad JC, Hubka V, Samson RA, Houbraken J. (2024) A review of recently introduced Aspergillus, Penicillium, Talaromyces and other Eurotiales species. Studies in Mycology 107:1–66. 10.3114/sim.2024.107.01
Joubert M, van den Berg N, Theron J, Swart V. (2024) Global transcriptomic analysis in avocado nursery trees reveals differential gene expression during asymptomatic infection by avocado sunblotch viroid (ASBVd). Virus Research 339:199263. 10.1016/j.virusres.2023.199263. PDF
Nganso BT, Soroker V, Osabutey AF, Pirk CWW, Johansson T, Elie N, Otieno-Ayayo ZN, Ibrahim MM, Ndungu NN, Ayalew W, Wubie AJ, Taboue GCT, Fameni ST, Bobadoye BO, Assefa F, Subramanian S. (2024) Best practices for colony management: a neglected aspect for improving honey bee colony health and productivity in Africa. Journal of Apicultural Research :1-18. 10.1080/00218839.2024.2308418