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Relevant bibliographies by topics / Herbicides – Toxicology – South Africa

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Academic literature on the topic 'Herbicides – Toxicology – South Africa'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Herbicides – Toxicology – South Africa"

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Tyohemba, Raymond Lubem, Letitia Pillay, and Marc S. Humphries. "Bioaccumulation of current-use herbicides in fish from a global biodiversity hotspot: Lake St Lucia, South Africa." Chemosphere 284 (December 2021): 131407. http://dx.doi.org/10.1016/j.chemosphere.2021.131407.

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Tyohemba, Raymond Lubem, Letitia Pillay, and Marc S. Humphries. "Herbicide residues in sediments from Lake St Lucia (iSimangaliso World Heritage Site, South Africa) and its catchment areas: Occurrence and ecological risk assessment." Environmental Pollution 267 (December 2020): 115566. http://dx.doi.org/10.1016/j.envpol.2020.115566.

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Ojemaye, Cecilia Y., Chionyedua T. Onwordi, Daniela M. Pampanin, Magne O. Sydnes, and Leslie Petrik. "Herbicides in Camps Bay (Cape Town, South Africa), supplemented." Science of The Total Environment 778 (July 2021): 146057. http://dx.doi.org/10.1016/j.scitotenv.2021.146057.

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Stewart, Michael J., Michael Stewart, Jack J. Moar, James Mwesigwa, and Michael Kokot. "Forensic Toxicology in Urban South Africa." Journal of Toxicology: Clinical Toxicology 38, no. 4 (2000): 415–19. http://dx.doi.org/10.1081/clt-100100951.

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South, David B., J. B. Zwolinski, and D. G. M. Donald. "Interactions among seedling diameter grade, weed control, and soil cultivation for Pinusradiata in South Africa." Canadian Journal of Forest Research 23, no. 10 (1993): 2078–82. http://dx.doi.org/10.1139/x93-259.

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A study was established in the southern Cape Province, South Africa, to examine survival and growth in response to seedling grade and various methods of site preparation. Second-year performance was examined in relation to (i) initial groundline diameter, (ii) intensity of weed control, and (iii) method of soil cultivation. Weeds were controlled with (i) manual release 1 year after planting (the standard method used by the Department of Water Affairs and Forestry) or (ii) total weed control for 1 year involving the use of herbicides and additional hoeing. Soil cultivation treatments included (

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Little, Keith, and Jonathan Roberts. "Desiccant herbicides tested for the preparation of fire-break tracer lines, South Africa." South African Journal of Plant and Soil 34, no. 4 (2017): 319–22. http://dx.doi.org/10.1080/02571862.2017.1317855.

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Goodall, J., and M. Braack. "Screening herbicides for the control of the wetland invader, Sambucus nigra L., in South Africa." African Journal of Aquatic Science 44, no. 3 (2019): 295–99. http://dx.doi.org/10.2989/16085914.2019.1628700.

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Wium, Cherylynn Angela, and Beverey Ann Hoffman. "Antidotes and their availability in South Africa." Clinical Toxicology 47, no. 1 (2009): 77–80. http://dx.doi.org/10.1080/15563650701877366.

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Gulumian, Mary. "The Perception and Practice of Toxicology in South Africa." Chemical Research in Toxicology 22, no. 1 (2009): 3–5. http://dx.doi.org/10.1021/tx800387j.

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Dalley, Caleb D., and Edward P. Richard. "Herbicides as Ripeners for Sugarcane." Weed Science 58, no. 3 (2010): 329–33. http://dx.doi.org/10.1614/ws-d-09-00001.1.

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Chemical ripening of sugarcane is an important component to profitable sugar production in the United States as well as other sugarcane industries throughout the world. Harvesting of sugarcane often begins before the sugarcane reaches the desirable maturity level. This is especially true in the Louisiana sugarcane industry where the window for harvesting is limited because of the risk of freezing temperatures encountered in a temperate climate. Research on the application of chemicals, mostly of herbicide origin, to enhance sucrose accumulation (ripening) or limit flowering to conserve stored

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Dissertations / Theses on the topic "Herbicides – Toxicology – South Africa"

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Mensah, Paul Kojo. "Environmental water quality management of glyphosate-based herbicides in South Africa." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1001987.

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Although the use of pesticides is necessary to meet the socio-economic needs of many developing countries, especially in Africa, side effects of these bio-active chemicals have contributed to contaminating aquatic and terrestrial ecosystems. Environmental water quality degradation by pesticides interferes with ecosystem health and poses numerous risks to aquatic life. In South Africa, glyphosate-based herbicides are frequently used to control weeds and invading alien plants, but ultimately end up in freshwater ecosystems. However, there are no South African-based environmental water quality ma

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De, Almeida Louise Kashiyavala Sophia. "The detection of glyphosate and glyphosate-based herbicides in water, using nanotechnology." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1019755.

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Glyphosate (N-phosphonomethylglycine) is an organophosphate compound which was developed by the Monsanto Company in 1971 and is the active ingredient found in several herbicide formulations. The use of glyphosate-based herbicides in South Africa for the control of alien invasive plants and weeds is well established, extensive and currently unregulated, which vastly increases the likelihood of glyphosate contamination in environmental water systems. Although the use of glyphosate-based herbicides is required for economic enhancement in industries such as agriculture, the presence of this compou

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Mutingwende, Nhamo. "Identification of agricultural and industrial pollutants in the Kat River, Eastern Cape and their effect on agricultural products found along the river banks." Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/d1020242.

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There is growing concern that commonly used Pharmaceuticals and Personal Care Products (PPCPs) and pesticides are entering and contaminating drinking water supplies. The use of targeted quantitation of PPCP has been well established but there is an emerging trend to also screen for and identify unexpected environmental pollutants. Chemicals like pesticides hormones and antibiotics are especially of interest because of proven endocrine disrupting effects and a possible development of bacterial resistance. Powerful screening methods are required to detect and quantify the presence of these compo

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Oyewole, Oyedemi Sunday. "Investigation of antidiabetic properties, mechanisms of action and toxicology of Strychnos Henningsii (GILG) bark." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/d1001070.

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The apparent reversal of trend from modern drugs to herbal medicine is partly due to the fact that synthetic drugs have always shown adverse reactions and other undesirable side effects. Hence, the use of medicinal plants for the treatment of diseases such as diabetes is very common especially in the rural areas. Majority of these plants are used based on the experience and indigenous knowledge without identification of the therapeutic agents. There is enormous wealth of medicinal plants in the world yet many of them have not been discovered or studied scientifically to substantiate their ethn

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Zokufa, T. S. "Tolerance of selected riverine indigenous macroinvertebrates from the Sabie River (Mpumalanga), and Buffalo River (Eastern Cape) to complex saline kraft and textile effluents." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1005475.

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Whole Effluent Toxicity (WET) testing has been identified as one of the tools in the management of complex effluents in aquatic ecosystems. In South Africa, toxicity testing has not been required for regulatory purposes. Recently, the Department of Water Affairs and Forestry has adopted WET testing as a tool to evaluate the suitability of hazardous effluent for discharge into receiving environments. This has necessitated suitable procedures to be established for use in the South African situation. With the implementation of the new National Water Act (No 36 of 1998), industries have to comply

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Williams, Chavon R. "A National survey of Mercury levels in South Africa's water management areas." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8674_1298356510.

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<p>This study forms part of a broader project co-funded by the Water Research Commission (WRC), and CSIR Parliamentary Grant (PG) and Strategic Research Panel (SRP) research grants, aimed at surveying selected water resources within the 19 Water Management Areas in South Africa. Furthermore, it aims at determining the concentrations of Hg and MeHg in various environmental compartments collected from priority water resources, to identify the potential Hg hotspots, and to assess the degree of compliance with national and international guidelines. Mercury concentrations in the environment have in

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Slabber, Michelle Yvonne. "Accumulation and toxicity of metals in oysters (Striostrea margaritacea) from the South African South Coast." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/2037.

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Thesis submitted in fulfilment of the requirements for the MTech: Oceanography in the Faculty of Applied Sciences at the CAPE PENINSULA UNIVERSITY OF TECHNOLOGY, 2013<br>The current status of metal pollution off the South African South coast is not well known. This study was the first to be undertaken in many years using Striostrea margaritacea as a subject species. The aims of the study were to determine the degree of metal contamination in the water, sediments, oyster tissues and oyster shells at sites selected in Witsand, Wilderness and Goukamma, as well as to establish if Striostrea ma

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Kruger, Anne-Liese. "Accumulation and toxicity of lead in soil along the road verges in the City of Cape Town." Thesis, Cape Peninsula University of Technology, 2007. http://hdl.handle.net/20.500.11838/788.

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Thesis (MTech (Environmental Health)--Cape Peninsula University of Technology, 2007<br>The widespread use of lead (Pb) and especially Pb from vehicular emissions arising from lead additives in petrol has resulted in high levels of this metal found in various soil samples taken along the road verges of Cape Town CBD. The accumulation of lead was investigated in roadside surface soil by collecting soil samples at various sites along the three major highways (N7, N2, N1), approximately three metres from the road verges and at a depth of approximately 5 cm for a period of 12 months. After d

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Nkqenkqa, Vuyiseka. "Metal and microbial contamination of agricultural soil and the Veldwachters River, Stellenbosch, South Africa." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2423.

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Thesis (MTech (Environmental Health))--Cape Peninsula University of Technology, 2017.<br>Surface water is used as a source of water supply in many countries, including South Africa. One of the sources of surface water pollution is leachate and surface runoff from landfills. In agricultural soils, the landfill runoff and leachate deteriorate the quality and affect the fertility of soil. The entry of metals and microorganisms from landfill leachate to adjacent environments is through surface runoff due to rainfall. Adverse effects on human- and environmental health triggers a need to monitor and

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Gola, Nontutuzelo Pearl. "The value of locally isolated freshwater micro-algae in toxicity testing for water resource management in South Africa." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1017873.

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The ecological position of micro-algae at the base of the aquatic food web makes them critical components of aquatic ecosystems. Their short generation time also makes them useful biological indicators because they respond quickly to changes in environmental condition, enabling timely identification and assessment of water quality changes. The inclusion of micro-algae as indicators in water resource regulation and management in South Africa has started recently, their more extensive use in biomonitoring and ecotoxicology programmes for water resource management would contribute to the South Af

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Books on the topic "Herbicides – Toxicology – South Africa"

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(Editor), T. S. Kellerman, J. A. W. Coetzer (Editor), T. W. Naude (Editor), and C. J. Botha (Editor), eds. Plant Poisonings & Mycotoxicoses of Livestock in South Africa. 2nd ed. Oxford University Press, USA, 2006.

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Book chapters on the topic "Herbicides – Toxicology – South Africa"

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Gulumian, Mary, Tarryn Lee Botha, and Victor Wepener. "South Africa." In Information Resources in Toxicology. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-821611-8.00034-6.

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Gulumian, Mary. "South Africa." In Information Resources in Toxicology. Elsevier, 2009. http://dx.doi.org/10.1016/b978-0-12-373593-5.00102-6.

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Dube, Sikhalazo, Fatunbi A., and Mota S. "Impacts, Efficacy and Economics of Bushwacker SC (Bromacil) in Controlling Acacia Invasion in South Africa." In Herbicides and Environment. InTech, 2011. http://dx.doi.org/10.5772/12937.

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Diao, Xinshen, Eduardo Magalhaes, and Jed Silver. "Urbanization and its Impact on Ghana’s Rural Transformation." In Ghana's Economic and Agricultural Transformation. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198845348.003.0005.

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Urbanization without industrialization is a major feature in Ghana, as elsewhere in much of Africa. This chapter explores how urbanization in Ghana has affected agricultural development in terms of rural employment, the farm size distribution, and use of modern inputs. In examining these relationships, the authors recognize that there have been distinct spatial patterns of urbanization in Ghana, and urbanization has not affected agriculture equally throughout the country. Therefore, the chapter develops a spatial typology of seven types of districts based on their city population size and location in the north or south of the country and examines the share of households employed in agriculture, nonagriculture, or both across these different district types. The findings illustrate that urbanization is increasing the share of rural households in the nonfarm economy, and contributed to a shift towards more medium-sized farms in the agriculturally important areas of the north. The chapter further tests the induced innovation hypothesis, which predicts that urbanization and associated increases in population density and market access should lead to more intensive farming practices. The findings show though that while there has been substantial uptake of fertilizers, herbicides, and mechanization in recent years, there is only limited support that this has been driven by urbanization.

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