Adams DC, Susaeta A, Soto JR, et al (2020) A bioeconomic model for estimating potential economic damages from a hypothetical Asian beetle introduced via future trade with Cuba. J Bioeconomics 22:33–58. https://doi.org/10.1007/s10818-019-09289-x
Auditor-General South Africa (2019) Consolidated General Report on the local government audit outcomes. MFMA 2018-19. Auditor-General of South AfricaAukema JE, Leung B, Kovacs K, et al (2011) Economic impacts of non-native forest insects in the Continental United States. PLoS One 6:24587 https://doi.org/10.1371/journal.pone.0024587
Bendor TK, Metcalf SS (2006) The spatial dynamics of invasive species spread. Syst Dyn Rev 22:27–50. https://doi.org/10.1002/sdr
Bester R., Blignaut J., and Crookes D. (2019) The impact of human behaviour and restoration on the economic lifespan of the proposed Ntabelanga and Laleni dams, South Africa: A system dynamics approach. Water Res Econ 26:1-16 https://doi.org/10.1016/j.wre.2018.08.002
Boland JM (2016) The impact of an invasive ambrosia beetle on the riparian habitats of the Tijuana River Valley, California. PeerJ 4:e2141. https://doi.org/10.7717/peerj.2141
Bolund P, Hunhammar S (1999) Ecosystem services in urban areas. Ecol Econ 29:293–301. https://doi.org/10.1016/S0921-8009(99)00013-0
Born W, Rauschmayer F, Bräuer I (2005) Economic evaluation of biological invasions-a survey. Ecol Econ 55:321–336. https://doi.org/10.1016/j.ecolecon.2005.08.014
Brenner J, Jiménez JA, Sardá R, Garola A (2010) An assessment of the non-market value of the ecosystem services provided by the Catalan coastal zone, Spain. Ocean Coast Manag 53:27–38. https://doi.org/10.1016/j.ocecoaman.2009.10.008
Brockerhoff EG, Bain J, Kimberley M, Knížek M (2006) Interception frequency of exotic bark and ambrosia beetles (Coleoptera: Scolytinae) and relationship with establishment in New Zealand and worldwide. Can J For Res 36:289–298. https://doi.org/10.1139/x05-250
Brockerhoff EG, Liebhold AM (2017) Ecology of forest insect invasions. Biol Invasions 19:3141–3159. https://doi.org/10.1007/s10530-017-1514-1
Byers JA, Maoz Y, Levi-Zada A (2017) Attraction of the Euwallacea sp. near fornicatus (Coleoptera: Curculionidae) to quercivorol and to infestations in avocado. J Econ Entomol 110:1512–1517. https://doi.org/10.1093/jee/tox151
Caffrey JM, Baars JR, Barbour JH, et al (2014) Tackling invasive alien species in Europe: The top 20 issues. Manag Biol Invasions 5:1–20 https://doi.org/10.3391/mbi.2014.5.1.01
Chan JM, Day P, Feely J et al (2015) Acacia mearnsii industry overview: current status, key research and development issues. Sth For 77:19–30. https://doi.org/10.2989/20702620.2015.1006907
Chen Y, Coleman TW, Poloni AL, Nelson L, Seybold SJ (2020) Reproduction and Control of the Invasive Polyphagous Shot Hole Borer, Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae), in Three Species of Hardwoods: Effective Sanitation Through Felling and Chipping. Environ Entomol 49:1155-63. https://doi.org/10.1093/ee/nvaa103
Courtois P, Figuieres C, Mulier C, Weill J (2018) A cost–benefit approach for prioritizing invasive species. Ecol Econ 146:607-620. https://doi.org/10.1016/j.ecolecon.2017.11.037
Crookes DJ, Blignaut JN, de Wit MP et al (2013) System dynamic modelling to assess economic viability and risk trade-offs for ecological restoration in South Africa. J Environ Manage 120:1328–147. https://doi.org/10.1016/j.jenvman.2013.02.001
Crookes DJ, Blignaut JN, Le Maitre DC (2020) The effect of accessibility and value addition on the costs of controlling invasive alien plants in South Africa: A three-species system dynamics model in the fynbos and grassland biomes. Sth For 82:125–134 https://doi.org/10.2989/20702620.2019.1686685
Dana ED, Jeschke JM, García-de-Lomas J (2013) Decision tools for managing biological invasions: existing biases and future needs. Oryx 48:56–63 https://doi.org/10.1017/S0030605312001263
Department of Agriculture, Forestry and Fisheries (DAFF) (2020a). Annual Performance Plan for the 2019/20 Fiscal Year. Government Printer: Pretoria.
Department of Agriculture, Forestry and Fisheries (DAFF) (2020b). Abstract of Agricultural Statistics 2019 [Excel spreadsheet]. Government Printer: Pretoria.
De Groot R, Brander L, van der Ploeg S, et al (2012) Global estimates of the value of ecosystems and their services in monetary units. Ecosyst Serv 1:50–61 https://doi.org/10.1016/j.ecoser.2012.07.005
De Groot RS, Blignaut J, Van der Ploeg S, et al (2013) Benefits of investing in ecosystem restoration. Conserv Biol 27:1286–1293. https://doi.org/10.1111/cobi.12158
De Wit M, Crookes DJ (2013) Improved decision-making on irrigation farming in arid zones using a system dynamics model. S Afr J Sci 109:1-8. https://doi.org/10.1590/sajs.2013/20130191
De Wit MP, Crookes DJ, Van Wilgen BW (2001) Conflicts of interest in environmental management: estimating the costs and benefits of a tree invasion. Biol Invasions 3:167–178. https://doi.org/10.1023/A
Eatough JM, Kabashima J, Eskalen A, Dimson M, Mayorquin JS, Carrillo JD, et al. (2017) Evaluations of insecticides and fungicides for reducing attack rates of a new invasive ambrosia beetle (Euwallacea sp., Coleoptera: Curculionidae: Scolytinae) in infested landscape trees in California. J Econ Entomol 10:1611–1618. https://doi.org/10.1093/jee/tox163
Epanchin-Niell RS (2017) Economics of invasive species policy and management. Biol Invasions 19:3333–3354. https://doi.org/10.1007/s10530-017-1406-4
Epanchin-Niell RS, Liebhold AM (2015) Benefits of invasion prevention: Effect of time lags, spread rates, and damage persistence. Ecol Econ 116:146–153. https://doi.org/10.1016/j.ecolecon.2015.04.014
Eskalen A (2012). California Avocado Commission Report: Avocado tour in Israel. www.avocadosource.com/papers/research_articles/eskalenakif2012e.p
Eskalen A, Gonzalez A, Wang DH, et al (2012) First report of a fusarium sp. and its vector tea shot hole borer (Euwallacea fornicatus) causing fusarium dieback on avocado in California. Plant Dis 96:1070 https://doi.org/10.1094/PDIS-03-12-0276-PDN
Eskalen A, Stouthamer R, Lynch SC, et al (2013) Host range of Fusarium dieback and its ambrosia beetle (Coleoptera: Scolytinae) vector in southern California. Plant Dis 97: 938-951 https://doi.org/10.1094/PDIS-11-12-1026-RE
Finnoff D, Shogren JF, Leung B, Lodge D (2005) The importance of bioeconomic feedback in invasive species management. Ecol Econ 52:367–381. https://doi.org/10.1016/j.ecolecon.2004.06.020
Freeman S, Sharon M, Maymon M, et al (2013) Fusarium euwallaceae sp. nov.--a symbiotic fungus of Euwallacea sp., an invasive ambrosia beetle in Israel and California. Mycologia 105:1595–1606. https://doi.org/10.3852/13-066
Gaertner M, Wilson JRU, Cadotte MW et al (2017) Non-native species in urban environments: patterns, processes, impacts and challenges. Biol Invasions 19:3461–3469. https://doi.org/10.1007/s10530-017-1598-7
Gomez DF, Skelton J, Steininger MS, et al (2018) Species delineation within the Euwallacea fornicatus (Coleoptera: Curculionidae) complex revealed by morphometric and phylogenetic analyses. Insect Syst Divers 2:1–11. https://doi.org/10.1093/isd/ixy018
Grosman DM, Eskalen A, Brownie C (2019) Evaluation of Emamectin Benzoate and Propiconazole for Management of a New Invasive Shot Hole Borer (Euwallacea nr. fornicatus, Coleoptera: Curculionidae) and Symbiotic Fungi in California Sycamores. J Econ Entomol 112:1267-73. https://doi.org/10.1093/jee/toy423
Grousset F, Grégoire JC, Jactel H, Battisti A, Beloglavec AB, Hrašovec B, Hulcr J, Inward D, Orlinski A, Petter F (2020) The risk of bark and ambrosia beetles associated with imported non-coniferous wood and potential horizontal phytosanitary measures. Forests 11:1–17. https://doi.org/10.3390/f11030342
Hauer RJ, Peterson WD (2017) Effects of emerald ash borer on municipal forestry budgets. Landsc Urban Plan 157:98–105. https://doi.org/10.1016/j.landurbplan.2016.05.023
Higgins SI, Azorin EJ, Cowling RM, Morris MJ (1997a) A dynamic ecological-economic model as a tool for conflict resolution in an invasive-alien-plant, biological control and native-plant scenario. Ecol Econ 22:141–154. https://doi.org/10.1016/S0921-8009(97)00574-0
Higgins SI, Turpie JK, Costanza R, et al (1997b) An ecological economic simulation model of mountain fynbos ecosystems. Dynamics, valuation and management. Ecol Econ 22:155–169. https://doi.org/10.1016/S0921-8009(97)00575-2
Holmes TP, Aukema JE, Von Holle B, et al (2009) Economic impacts of invasive species in forests: Past, present, and future. Ann N Y Acad Sci 1162:18–38. https://doi.org/10.1111/j.1749-6632.2009.04446.x
Hui C, Richardson DM (2017) Invasion Dynamics. Oxford University Press, Oxford
Hulcr J, Stelinski LL (2017) The Ambrosia symbiosis: From evolutionary ecology to practical management. Annu Rev Entomol 62:285–303. https://doi.org/10.1146/annurev-ento-031616-035105
Hulcr J, Black A, Prior K, et al (2017) Studies of ambrosia beetles (Coleoptera: Curculionidae) in their native ranges help predict invasion impact. Fla Entomol 100:257–261. https://doi.org/10.1653/024.100.0219
IMF (2020). World Economic Outlook Database (October 2020). https://www.imf.org/external/datamapper/NGDP_RPCH@WEO/ZAF. Accessed 10 December 2020.
Jones ME, Paine TD (2015) Effect of Chipping and Solarization on Emergence and Boring Activity of a Recently Introduced Ambrosia Beetle (Euwallacea sp., Coleoptera: Curculionidae: Scolytinae) in Southern California. J Econ Entomol 108:1852–1859. https://doi.org/10.1093/jee/tov169
Kondo MC, Han SH, Donovan GH, MacDonald JM (2017) The association between urban trees and crime: Evidence from the spread of the emerald ash borer in Cincinnati. Landsc Urban Plan 157:193–199. https://doi.org/10.1016/j.landurbplan.2016.07.003
Kovacs KF, Haight RG, McCullough DG, et al (2010) Cost of potential emerald ash borer damage in U.S. communities, 2009-2019. Ecol Econ 69:569–578. https://doi.org/10.1016/j.ecolecon.2009.09.004
Kovacs KF, Mercader RJ, Haight RG, et al (2011) The influence of satellite populations of emerald ash borer on projected economic costs in U.S. communities, 2010-2020. J Environ Manage 92:2170–2181. https://doi.org/10.1016/j.jenvman.2011.03.043
Lantschner MV, Corley JC, Liebhold AM (2020) Drivers of global Scolytinae invasion patterns. Ecol Appl 30:. https://doi.org/10.1002/eap.2103
Leathers J (2015) California pest rating for Euwallacea sp. nr. fornicatus: polyphagous shot hole borer (PSHB), Coleoptera: Curculionidae, pest rating: B. Available online from: http://blogs.cdfa.ca.gov/Section3162/?tag=polyphagous-shot-hole-borer
Livesley SJ, McPherson EG, Calfapietra C (2016) The Urban Forest and Ecosystem Services: Impacts on Urban Water, Heat, and Pollution Cycles at the Tree, Street, and City Scale. J Environ Qual 45:119–124. https://doi.org/10.2134/jeq2015.11.0567
Lynn KMT, Wingfield MJ, Durán A, et al (2020) Euwallacea perbrevis (Coleoptera: Curculionidae: Scolytinae), a confirmed pest on Acacia crassicarpa in Riau, Indonesia, and a new fungal symbiont; Fusarium rekanum sp. nov. Antonie van Leeuwenhoek, Int J Gen Mol Microbiol 113:803–823. https://doi.org/10.1007/s10482-020-01392-8
Marbuah G, Gren I-M, McKie B (2014) Economics of harmful invasive species: A review. Diversity 6:500–523. https://doi.org/10.3390/d6030500
May RM (1982) Mutualistic interactions among species. Nature 296:803–804. https://doi.org/10.1038/296803a0
Mayorquin JS, Carrillo JD, Twizeyimana M, Peacock BB, Sugino KY, Na F, Wang DH, Kabashima JN, Eskalen A (2017) Chemical management of invasive shot hole borer and Fusarium dieback in California sycamore (Platanus racemosa) in southern California. Plant Dis 102:1307-15. https://doi.org/10.1094/PDIS-10-17-1569-RE
McConnachie AJ, De Wit MP, Hill MP, Byrne MJ (2003) Economic evaluation of the successful biological control of Azolla filiculoides in South Africa. Biol Control 28:25-32. https://doi.org/10.1016/S1049-9644(03)00056-2
McPherson EG (2003) A benefit-cost analysis of ten tree species in Modesto, California, U.S.A. J Arboric 29:1–8
McPherson EG, Xiao Q, van Doorn NS, et al (2017) The structure, function and value of urban forests in California communities. Urban For Urban Green 28:43–53. https://doi.org/10.1016/j.ufug.2017.09.013
Mendel Z, Protasov A, Maoz Y, et al (2017) The role of Euwallacea nr. fornicatus (Coleoptera: Scolytinae) in the wilt syndrome of avocado trees in Israel. Phytoparasitica 45:341–359. https://doi.org/10.1007/s12600-017-0598-6
Mendel Z, Protasov A, Sharon M, et al (2012) An Asian ambrosia beetle Euwallacea fornicatus and its novel symbiotic fungus Fusarium sp. pose a serious threat to the Israeli avocado industry. Phytoparasitica 40:235–238. https://doi.org/10.1007/s12600-012-0223-7
Mucina L, Rutherford MC (2006) The vegetation of South Africa, Lesotho and Swaziland. Strelitizia 19. SANBI, Pretoria
Mudavanhu S, Blignaut JN, Vink N et al (2017a) An assessment of the costs and benefits of using Acacia saligna (Port Jackson) and recycled thermoplastics for the production of wood polymer composites in the Western Cape Province, South Africa. Afr J Agric Resour Econ 12: 322-365
Mudavanhu S, Blignaut JN, Vink N et al (2017b). An economic analysis of different land-use options to assist in the control of the invasive Prosopis (Mesquite) tree. Afr J Agric Resour Econ 12: 366-411
Nkambule NP, Blignaut JN, Vundla T, et al (2017) The benefits and costs of clearing invasive alien plants in northern Zululand, South Africa. Ecosyst Serv 27: 203-223. https://doi.org/10.1016/j.ecoser.2017.04.011
Nobre AM, Musango JK, de Wit MP, Ferreira JG (2009) A dynamic ecological-economic modeling approach for aquaculture management. Ecol Econ 68: 3007-3017. https://doi.org/10.1016/j.ecolecon.2009.06.019
Oberholzer F, Godsmark R (2020). Forestry South Africa Roundwood Sales Analysis for 2019 Financial Year. Forestry South Africa, pp 1–31.
O’Donnell K, Sink S, Libeskind-Hadas R, et al (2015) Discordant phylogenies suggest repeated host shifts in the Fusarium-Euwallacea ambrosia beetle mutualism. Fungal Genet Biol 82:277–290. https://doi.org/10.1016/j.fgb.2014.10.014
Orbay L, McLean JA, Sauder BJ, Cottell PL (1994) Economic losses resulting from ambrosia beetle infestation of sawlogs in coastal British Columbia, Canada. Can J For Res 24:1266–1276. https://doi.org/10.1139/x94-166
Owens D, Seo M, Montgomery WS, Rivera MJ, Stelinski LL, Kendra PE, 2019. Dispersal behaviour of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae) in avocado groves and estimation of lure sampling range. Agric For Entomol 21:199–208. https://doi.org/10.1111/afe.12321
Paap T, Wingfield MJ, de Beer ZW, Roets F (2020) Lessons from a major pest invasion: The polyphagous shot hole borer in South Africa. S Afr J Sci 116: Art. #8757. https://doi.org/10.17159/sajs.2020/8757
Paap T, de Beer ZW, Migliorini D, et al (2018) The polyphagous shot hole borer (PSHB) and its fungal symbiont Fusarium euwallaceae: a new invasion in South Africa. Australas Plant Pathol 47:231-237. https://doi.org/10.1007/s13313-018-0545-0
Paap T, Burgess TI, Wingfield MJ (2017) Urban trees: bridge-heads for forest pest invasions and sentinels for early detection. Biol Invasions 19:3515-3526. https://doi.org/10.1007/s10530-017-1595-x
Pejchar L, Mooney HA (2009) The impact of invasive alien species on ecosystem services and human well-being. Trends Ecol Evol 24:497–504. https://doi.org/10.1093/acprof:oso/9780199560158.003.0012
Peper P, McPherson EG, Simpson JR et al (2007) New York City, New York. Municipal Forest Resource Analysis. Davis, CA
Pimentel D (ed) (2011) Biological invasions: Economic and environmental costs of alien plant invasions. 2nd ed. CRC Press, Boca Raton
Ploetz RC, Hulcr J, Wingfield MJ, de Beer ZW (2013) Destructive Tree Diseases Associated with Ambrosia and Bark Beetles: Black Swan Events in Tree Pathology? Plant Dis 95:856–872. https://doi.org/10.1094/PDIS-01-13-0056-FE
Potgieter L, Douwes E, Gaertner M, et al (2020) Biological invasions in South Africa’s urban ecosystems: Patterns, processes, impacts and management. In: Van Wilgen BW, Measey J, Richardson DM, et al. (eds) Biological invasions in South Africa. Springer, Berlin, pp 275–309 https://doi.org/10.1007/978-3-030-32394-3_11
Pyšek P, Hulme PE, Simberloff D et al (2020) Scientists’ warning on invasive alien species. Biol Rev 95:1511–1534. https://doi.org/10.1111/brv.12627
Rabaglia RJ, Dole SA, Cognato AI (2006) Review of American Xyleborina (Coleoptera: Curculionidae: Scolytinae) occurring north of Mexico, with an illustrated key. Ann Entomol Soc Am 99:1034–1056. https://doi.org/10.1603/0013-8746(2006)99[1034:ROAXCC]2.0.CO;2
Richardson DM, Foxcroft LC, Latombe G et al (2020). The biogeography of South African terrestrial plant invasions. In: Van Wilgen BW, Measey J, Richardson DM, et al. (eds) Biological invasions in South Africa. Springer, Berlin, pp. 67-96 https://doi.org/10.1007/978-3-030-32394-3_3
Rugman-Jones PF, Au M, Ebrahimi V, et al (2020) One becomes two: second species of the Euwallacea fornicatus (Coleoptera: Curculionidae: Scolytinae) species complex is established on two Hawaiian Islands. PeerJ 8:e9987. https://doi.org/10.7717/peerj.9987
Saplaco R, Francisco H (1993) ValuAsia: Benefits Transfer for Southeast Asia. EEPSEA Special and Technical Paper sp199301t2, Economy and Environment Program for Southeast Asia (EEPSEA), revised Jan 1993.
Senge P (1990) The art and practice of the learning organization. Doubleday/Currency, New York
Shackleton C (2018) Informal urban firewood markets persist despite large-scale socioeconomic development. Sci Trends doi: 10.31988/SciTrends.16262 https://doi.org/10.31988/SciTrends.16262
Soares AL, Rego FC, McPherson EG, et al (2011) Benefits and costs of street trees in Lisbon, Portugal. Urban For Urban Green 10:69–78. https://doi.org/10.1016/j.ufug.2010.12.001
Sterman J (2000) Business dynamics: systems thinking and modeling for a complex world. Irwin/McGraw-Hill, Boston
Stouthamer R, Rugman-Jones P, Thu PQ, et al (2017) Tracing the origin of a cryptic invader: phylogeography of the Euwallacea fornicatus (Coleoptera: Curculionidae: Scolytinae) species complex. Agric For Entomol 19:366–375. https://doi.org/10.1111/afe.12215
Susaeta A, Soto JR, Adams DC, et al (2016) Pre-invasion economic assessment of invasive species prevention: A putative ambrosia beetle in Southeastern loblolly pine forests. J Environ Manage 183:875–881. https://doi.org/10.1016/j.jenvman.2016.09.037
Touza J, Dehnen-Schmutz K, Jones G (2007) Economic analysis of invasive species policies. In: Nentwig W (ed) Biological Invasions. Springer Berlin Heidelberg, pp 353–366
Traveset A, Richardson DM (2014) Mutualistic interactions and biological invasions. Annu Rev Ecol Evol Syst 45:89–113. https://doi.org/10.1146/annurev-ecolsys-120213-091857
Turpie J (2004) The role of resource economics in the control of invasive alien plants in South Africa. S Afr J Sci 100:87–93. https://hdl.handle.net/10520/EJC96207
Turpie JK, Forsythe KJ, Knowles A, et al (2017) Mapping and valuation of South Africa’s ecosystem services: A local perspective. Ecosyst Serv 27:179-192 https://doi.org/10.1016/j.ecoser.2017.07.008
Twiddy D, Fell S, de Beer ZW, et al (2020) Screening for susceptibility of Macadamia to E. fornicatus and its fungal symbiont Fusarium euwallaceae. Plant Dis https://doi.org/10.1094/PDIS-07-20-1555-SC
Van Wilgen BW, de Wit MP, Anderson HJ (2004) Costs and benefits of biological control of invasive alien plants: case studies from South Africa. S Afr J Sci 100:113–122 http://hdl.handle.net/10204/1891
Van Wilgen BW, Measey J, Richardson DM et al (2020a) Biological Invasions in South Africa: An Overview. In: van Wilgen BW, Measey J, Richardson DM et al (eds) Biological Invasions in South Africa. Springer, Berlin pp 3–31
Van Wilgen BW, Raghu S, Sheppard AW, Schaffner U (2020b) Quantifying the social and economic benefits of the biological control of invasive alien plants in natural ecosystems. Curr Opin Insect Sci 38:1–5. https://doi.org/10.1016/j.cois.2019.12.004
Van Wilgen BW, Richardson DM, Le Maitre DC, et al (2001) The economic consequences of alien plant invasions: Examples of impacts and approaches to sustainable management in south Africa. Environ Dev Sustain 3:145–168. https://doi.org/10.1023/A:1011668417953
Van Zyl H, De Wit MP (2013) Environmental Impact Assessment for the proposed National Road 3: Keeversfontein To Warden (De Beers Pass Section). Environmental Resource Economics Draft Specialist Report
Van Zyl JL, Ferreira SG (1995) An Overview of the Avocado Industry in South Africa. South African Avocado Growers’ Association Yearbook, 18:23-30
Ventana Systems, Inc. Vensim ©, 2015. User Guide & Software Web: www.vensim.com Accessed 07 July 2020
Vundla T, Blignaut JN, Crookes D (2017). Aquatic weeds: To control or not to control. The case of the Midmar Dam, KwaZulu-Natal, South Africa. African J Agric Resour Econ 12: 412-429
Wise RM, van Wilgen BW, Le Maitre DC (2012) Costs, benefits and management options for an invasive alien tree species: The case of mesquite in the Northern Cape, South Africa. J Arid Environ 84:80–90. https://doi.org/10.1016/j.jaridenv.2012.03.001
World Bank (2020). World Development Indicators. https://data.worldbank.org/country/ZA. Accessed 10 December 2020