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Browsing by Subject "Biological control"

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An assessment of the effectiveness of a large, national-scale invasive alien plant control strategy in South Africa

Author: Van Wilgen, BW ; Forsyth, GG ; Le Maitre, David C ; Wannenburgh, A ; Kotzé, JDF ; Van den Berg, E ; Henderson, L Date: Apr 2012 This paper presents an assessment of a large, national-scale alien plant control program that has operated in South Africa for 15 years. We reviewed data from three national-level estimates of the extent of invasion, records of the costs and ... Read more
Bacteria as biological control agents of freshwater cyanobacteria: is it feasible beyond the laboratory?

Author: Ndlela, Luyanda L ; Oberholster, Paul J ; Van Wyk, JH ; Cheng, Po Hsun H Date: Dec 2018 Biological control of cyanobacteria is a well-researched area with a central focus on laboratory-scale studies. Numerous reports have been made on algicidal isolates, with bacteria as a major component of the antagonists. The research in this ... Read more
Bacterial control of cyanobacteria

Author: Ndlela, Luyanda L ; Oberholster, Paul J ; Van Wyk, Johannes Date: Aug 2017 With the effects of climate change, harmful algal blooms (HABs) have become a global concern, with serious implications in water scarce countries and vulnerable continents such as Africa. A need exists for low-cost, environmentally feasible ... Read more
Biological control of toxic cyanobacteria

Author: Ndlela, Luyanda L ; Oberholster, Paul J ; Van Wyk, J Date: Apr 2016 With the effects of climate change, harmful algal blooms (HABs) have become a global concern, with serious implications in water scarce countries such as South Africa. There is a specific lack of information in the African continent regarding ... Read more
Costs, benefits and management options for an invasive alien tree species: the case of mesquite in the Northern Cape, South Africa

Author: Wise, RM ; Van Wilgen, BW ; Le Maitre, David C Date: Aug 2012 Mesquite (Prosopis species) were introduced to South Africa to provide fodder and shade for livestock, but some have become invasive, impacting on water and grazing resources. Mesquite’s net economic effects are unclear and their unequal ... Read more
Evolution of fire and invasive alien plant management practices in fynbos

Author: Van Wilgen, BW Date: Sep 2009 The history and development of fire and invasive alien plant management policies in fynbos during the 20th century are reviewed. Fire was initially condemned outright as a destructive force, but as its vital role became better understood, ... Read more
A laboratory based exposure of Microcystis and Oscillatoria cyanobacterial isolates to heterotrophic bacteria

Author: Ndlela, Luyanda L ; Oberholster, Paul J ; Van Wyk, JH ; Cheng, Po Hsun Date: Apr 2019 Biological control of cyanobacteria is a viable means of controlling nuisance bloom occurrences; however the majority of studies done are against Microcystis sp., with a commonly lytic effect caused. Filamentous cyano-bacteria such as ... Read more
National-scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa

Author: Van Wilgen, BW ; Dyer, C ; Hoffmann, JH ; Ivey, P ; Le Maitre, David C ; Moore, JL ; Richardson, DM ; Rouget, M ; Wannenburgh, A ; Wilson, RU Date: Sep 2011 A range of approaches and philosophies underpin national-level strategies for managing invasive alien plants. This study presents a strategy for the management of taxa that both have value and do harm. Insights were derived from examining ... Read more

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Browsing by Subject "Biological control"

Browsing by Subject "Biological control"

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