Download or read book Locust Outbreaks written by Umair Riaz and published by CRC Press. This book was released on 2023-09-08 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a comprehensive resource on the devastating effect of locust outbreaks on crop production along with valuable coverage of traditional as well as new and emerging control and mitigation strategies. Begining with an introduction to and history of locust attacks, the volume describes the deleterious effects of locusts on crops and delves into both traditional and state-of-the art control and management technologies to combat locust outbreaks, including such advanced technologies as geographical information systems (GIS) and global positioning systems (GPS) and methods such as employing entomopathogenic fungi as a pest control measure. The book also evaluates how climate change has exacerbated the damage from locusts and the environmental ramifications. The book considers the scientific aspect of the role of pheromones on the reproduction of locusts and discusses the culture of using locusts as a food source in some countries. Topically, the volume also considers the influence of the COVID-19 pandemic on locust outbreaks on the world’s economy. This important and unique volume is a highly valuable resource for those working on meeting the challenges of locust invasions and their terrible consequences on crops, societies, and economies.
Download or read book Locusts written by Caitie McAneney and published by Gareth Stevens Publishing LLLP. This book was released on 2014-08-01 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Just the mention of locusts can strike fear into the heart of a farmer. Locust plagues wreak havoc on crops and have been the cause of millions of people going hungry. This book examines the life of a locust and what happens to cause a swarm to form. Locust swarms can contain trillions of insects and cover hundreds of miles of land, so locust control is essential to countries dependent on crops. This book offers both historical and scientific information on locusts and impresses just how detrimental these creatures can be.
Download or read book New Strategies in Locust Control written by S. Krall and published by Birkhäuser. This book was released on 2012-12-06 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.
Download or read book Locust written by Jeffrey A. Lockwood and published by Basic Books. This book was released on 2009-04-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the nineteenth century, swarms of locusts regularly swept across the continent, turning noon into dusk, demolishing farm communities, and bringing trains to a halt as the crushed bodies of insects greased the rails. In 1876, the U.S. Congress declared the locust "the single greatest impediment to the settlement of the country." From the Dakotas to Texas, from California to Iowa, the swarms pushed thousands of settlers to the brink of starvation, prompting the federal government to enlist some of the greatest scientific minds of the day and thereby jumpstarting the fledgling science of entomology. Over the next few decades, the Rocky Mountain locust suddenly -- and mysteriously -- vanished. A century later, Jeffrey Lockwood set out to discover why. Unconvinced by the reigning theories, he searched for new evidence in musty books, crumbling maps, and crevassed glaciers, eventually piecing together the elusive answer: A group of early settlers unwittingly destroyed the locust's sanctuaries just as the insect was experiencing a natural population crash. Drawing on historical accounts and modern science, Locust brings to life the cultural, economic, and political forces at work in America in the late-nineteenth century, even as it solves one of the greatest ecological mysteries of our time.
Download or read book The Locust Outbreak in Africa and Western Asia written by Great Britain. Economic Advisory Council. Committee on Locust Control and published by . This book was released on 1936 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Locust Outbreak in Africa and Western Asia written by Great Britain. Economic advisory council. Committee on locust control and published by . This book was released on 1933 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Locust Outbreaks in the Union During the Season 1936 37 written by C. Du Plessis and published by . This book was released on 1938 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Plague of Locusts written by and published by . This book was released on 1990 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Locust Outbreak in Africa and Western Asia in 1937 written by Boris Petrovich Uvarov and published by . This book was released on 1939 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grasshoppers and Grassland Health written by Jeffrey A. Lockwood and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acridids (grasshoppers and locusts) can range from being rare curiosities to abundant menaces. Some are threatened with extinction and become subjects of intensive conservation efforts, while others are devastating pests and become the objects of massive control programmes. Even within a species, there are times when the animal is so abundant that its crushed masses cause the wheels of trains to skid (the Rocky Mountain grasshopper, Melanoplus spretus Walsh in western North America in the 1860s and I 870s), while at other times the animal is alarmingly scarce (the Rocky Mountain grasshopper went extinct in the early 1900s). Why are there these extremes in one insect family, and even in a single species? The NATO workshop examined this paradox and its implications for Environmental Security, which must address both the elements of land use (agricultural production and pest management) and conservation of biodiversity. The reconciliation of these objectives clearly demands a critical assessment of current knowledge and policies, identification of future research, and close working relationships among scientists. Insects can present two clear faces, as well as the intervening gradation. These extremes require us to respond in two ways: conservation of scarce species and suppression of abundant (harmful) species. But perhaps most important, these opposite poles also provide the opportunity for an exchange of information and insight.
Download or read book The Locust Outbreak in Africa and Western Asia in 1937 written by Great Britain. Committee on locust control and published by . This book was released on 1939 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Plague of locusts special report written by United States. Congress. Office of Technology Assessment and published by DIANE Publishing. This book was released on 1990 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A general investigation of the locust outbreaks in China during the year 1934 etc written by China. National agricultural research bureau and published by . This book was released on 1935 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Locust Handbook written by A. Steedman and published by . This book was released on 1990 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Strategies in Locust Control written by Stephan Krall and published by Springer Science & Business Media. This book was released on 1997-12-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.
Download or read book Locust Outbreaks and Migration in the Asian Steppe written by Arianne Cease and published by . This book was released on 2012 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land management practices such as domestic animal grazing can alter plant communities via changes in soil structure and chemistry, species composition, and plant nutrient content. These changes can affect the abundance and quality of plants consumed by insect herbivores with consequent changes in population dynamics. These population changes can translate to massive crop damage and pest control costs. My dissertation focused on Oedaleus asiaticus, a dominant Asian locust, and had three main objectives. First, I identified morphological, physiological, and behavioral characteristics of the migratory ("brown") and non-migratory ("green") phenotypes. I found that brown morphs had longer wings, larger thoraxes and higher metabolic rates compared to green morphs, suggesting that developmental plasticity allows greater migratory capacity in the brown morph of this locust. Second, I tested the hypothesis of a causal link between livestock overgrazing and an increase in migratory swarms of O. asiaticus. Current paradigms generally assume that increased plant nitrogen (N) should enhance herbivore performance by relieving protein-limitation, increasing herbivorous insect populations. I showed, in contrast to this scenario, that host plant N-enrichment and high protein artificial diets decreased the size and viability of O. asiaticus. Plant N content was lowest and locust abundance highest in heavily livestock-grazed fields where soils were N-depleted, likely due to enhanced erosion and leaching. These results suggest that heavy livestock grazing promotes outbreaks of this locust by reducing plant protein content. Third, I tested for the influence of dietary imbalance, in conjunction with high population density, on migratory plasticity. While high population density has clearly been shown to induce the migratory morph in several locusts, the effect of diet has been unclear. I found that locusts reared at high population density and fed unfertilized plants (i.e. high quality plants for O. asiaticus) had the greatest migratory capacity, and maintained a high percent of brown locusts. These results did not support the hypothesis that poor-quality resources increased expression of migratory phenotypes. This highlights a need to develop new theoretical frameworks for predicting how environmental factors will regulate migratory plasticity in locusts and perhaps other insects.
Download or read book The Locust Outbreak in Africa and Western Asia in 1933 written by Boris Petrovitch Uvarov and published by . This book was released on 1934 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
