Download or read book Plant Molluscicides for Snail Control in the South African Context written by Tanza Elizabeth Clark and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snail Control written by Salwa Hamdi and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work evaluates the molluscicidal activities of certain plant extracts (water suspension, Cold water, Boiled water, methanol, ethanol, acetone and chloroform extract). The data obtained from preliminary screening tests conducted on 10 plant species belonging to 10 different families. The effect of low concentrations of different synthetic and natural mollusciciding agents may introduce to fresh water environment on reproduction and biochemical aspects of Biomphalaria alexandrina was studied. Different mollusciciding agents (copper sulphate, Bayluscide, Uccmaluscide, Agave franzosinii, Agave filifera & Agava attenuate). The present study was planned to assess the susceptibility of some naturally associated snails to the molluscicidal activity of monoterpenes in order to evaluate the possibility of applying both chemical and biological methods to control Bulinus truncatus populations. The molluscicidal effect of three monoterpenes (Eugenol, Llinalool and Thymol ) against freshwater snails and the impact of two concentrations of thymol on some enzymatic activity of five snail species naturally associated with Bulinus truncatus.
Download or read book Report of the Annual Meeting of the South African Association for the Advancement of Science written by and published by . This book was released on 2001 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ambrosia Maritima L written by and published by . This book was released on 1994 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mit franz. Zusammenfassung.
Download or read book Durban Museum Novitates written by and published by . This book was released on with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of the Golden Snail Pomacea Sp on Rice Farming Systems in the Philippines written by Belen O. Acosta and published by WorldFish. This book was released on 1991 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Guide to the Land Snails and Slugs of Eastern South Africa written by Dai Herbert and published by . This book was released on 2004 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molluscs as Crop Pests written by G. M. Barker and published by CABI. This book was released on 2002-03-21 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mollusc species currently constitute a major threat to sustainable agriculture. This threat is associated with cultivation of new crops, intensification of agricultural production systems and the spread through human trade and travel of species adapted to these modified environments. In some crops their significance is only now becoming apparent with the decline in the importance of other pest groups which can be effectively controlled. The book focuses on: toxicology of chemicals; deployment of molluscicides in baits; specific crop situations worldwide; current pest status of mollusc species and progress towards development of solutions.
Download or read book Investing to Overcome the Global Impact of Neglected Tropical Diseases written by World Health Organization and published by World Health Organization. This book was released on 2015-08-05 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The presence, or absence, of neglected tropical diseases (NTDs) can be seen as a proxy for poverty and for the success of interventions aimed at reducing poverty. Today, coverage of the public-health interventions recommended by the World Health Organization (WHO) against NTDs may be interpreted as a proxy for universal health coverage and shared prosperity - in short, a proxy for coverage against neglect. As the world's focus shifts from development to sustainable development, from poverty eradication to shared prosperity, and from disease-specific goals to universal health coverage, control of NTDs will assume an important role towards the target of achieving universal health coverage, including individual financial risk protection. Success in overcoming NTDs is a "litmus test" for universal health coverage against NTDs in endemic countries. The first WHO report on NTDs (2010) set the scene by presenting the evidence for how these interventions had produced results. The second report (2013) assessed the progress made in deploying them and detailed the obstacles to their implementation. This third report analyses for the first time the investments needed to achieve the scale up of implementation required to achieve the targets of the WHO Roadmap on NTDs and universal coverage against NTDs. INVESTING TO OVERCOME THE GLOBAL IMPACT OF NEGLECTED TROPICAL DISEASES presents an investment strategy for NTDs and analyses the specific investment case for prevention, control, elimination and eradication of 12 of the 17 NTDs. Such an analysis is justified following the adoption by the Sixty-sixth World Health Assembly in 2013 of resolution WHA6612 on neglected tropical diseases, which called for sufficient and predictable funding to achieve the Roadmap's targets and sustain control efforts. The report cautions, however, that it is wise investment and not investment alone that will yield success. The report registers progress and challenges and signals those that lie ahead. Climate change is expected to increase the spread of several vector-borne NTDs, notably dengue, transmission of which is directly influenced by temperature, rainfall, relative humidity and climate variability primarily through their effects on the vector. Investments in vector-borne diseases will avoid the potentially catastrophic expenditures associated with their control. The presence of NTDs will thereby signal an early warning system for climate-sensitive diseases. The ultimate goal is to deliver enhanced and equitable interventions to the most marginalized populations in the context of a changing public-health and investment landscape to ensure that all peoples affected by NTDs have an opportunity to lead healthier and wealthier lives."--Publisher's description.
Download or read book Plants of Southern Africa written by T. H. Arnold and published by Bright Sparks. This book was released on 1993 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Culture of Fish in Rice Fields written by Matthias Halwart and published by WorldFish. This book was released on 2004 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alien and Invasive Animals written by Mike Picker and published by Penguin Random House South Africa. This book was released on 2013-10-24 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: While alien plants have been well publicised, this is the first book to be published on alien animals of Africa. It describes the history of each invasion, and the ecological and economic impacts in South Africa; and it discusses the effect of introduced biocontrol agents (usually insects), which are also alien species released deliberately to control problem plants. Key features are: • Each group of animals is covered in a separate chapter written by a specialist in the field • Colour photographs of each species • Maps for each species’ native and introduced range, and a detailed map of its spread in South Africa • Text covers identification and biology, distribution, impacts and control for the particular species • Alien animals are considered in all habitats, including freshwater, terrestrial and marine. The book will be an essential reference for conservationists, farmers, reserve managers, gardeners, anglers, biology students and researchers, and of interest to the lay public.
Download or read book Biological Control Measures of Success written by G. Gurr and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: As well as examining successful biological control programmes this book analyses why the majority of attempts fail. Off-target and other negative effects of biological control are also dealt with. Chapters contributed by leading international researchers and practitioners in all areas of biological control afford the book a breadth of coverage and depth of analysis not possible with a single author volume. Combined with the use of other experts to review chapters and editorial oversight to ensure thematic integrity of the volume, this book provides the most authoritative analysis of biological control published. Key aspects addressed include how success may be measured, how successful biological control has been to date and how may it be made more successful in the future. With extensive use of contemporary examples, photographs, figures and tables this book will be invaluable to advanced undergraduate and postgraduate students as well as being a `must' for all involved in making biological control successful.
Download or read book Nanomaterials in Chromatography written by Chaudhery Mustansar Hussain and published by Elsevier. This book was released on 2018-06-08 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials in Chromatography: Current Trends in Chromatographic Research Technology and Techniques provides recent advancements in the wide variety of chromatographic techniques applied to nanotechnology. As nanomaterials’ unique properties can improve detection sensitivity and miniaturize the devices used in analytical procedures, they can substantially affect the evaluation and analysis ability of scientists and researchers and foster exciting developments in separation science. The book includes chapters on such crucial topics as the use of nanomaterials in sample preparation and the legalization of nanomaterials, along with a section on reducing the cost of the analysis process, both in terms of chemicals and time consumption. Presents several techniques for nanomaterials in chromatography, including well-known materials like carbon nanomaterials and functionalized nanomaterials Includes suggested readings at the end of each chapter for those who need further information or specific details, from standard handbooks, to journal articles Covers not only applications of nanomaterials in chromatography, but also their environmental impact in terms of toxicity and economic effects
Download or read book Socioeconomics of Rice aquaculture and IPM in the Philippines written by Gesa Horstkotte-Wesseler and published by Int. Rice Res. Inst.. This book was released on 1999 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intermediate Hosts of Schistosoma written by G. Mandahl-Barth and published by . This book was released on 1958 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sino African Cooperation for Schistosomiasis Control in Zanzibar written by Kun Yang and published by Springer Nature. This book was released on 2021-06-29 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering an example for transnational cooperation and successful reduction of a neglected tropical disease, this volume shows how Chinese scientists and local physicians controlled schistosomiasis in Zanzibar. Over a four-year study, local medical specialists and the population of Zanzibar were taught how to diagnose the parasitosis caused by flukes (trematode worms) of the genus Schistosoma. Furthermore, methods to eliminate the disease and prevent new infections were established. The developed control system will avoid repeated increase of human schistosomiasis, which is still prevalent in the tropics and subtropics. Rural populations and poor communities lacking access to clean drinking water and adequate sanitation are most affected. This book is a blueprint of activities urgently needed to combat schistosomiasis in countries with low medical impact. The strategies outlined are particularly relevant to parasitologists and professionals in public health, physicians, medical personnel and also governmental, healthcare and pharmaceutical institutions.
