Locust Outbreaks

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.

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.

This text brings together fundamental information on insect taxa, morphology, ecology, behavior, physiology, and genetics. Close relatives of insects, such as spiders and mites, are included.

The abundance of insects can change dramatically from generation to generation; these generational changes may occur within a growing season or over a period of years. Such extraordinary density changes or "outbreaks" may be abrupt and ostensibly random, or population peaks may occur in a more or less cyclic fashion. They can be hugely destructive when the insect is a crop pest or carries diseases of humans, farm animals, or wildlife. Knowledge of these types of population dynamics and computer models that may help predict when they occur are very important. This important new book revisits a subject not thoroughly discussed in such a publication since 1988 and brings an international scale to the issue of insect outbreaks. Insect Outbreaks Revisited is intended for senior undergraduate and graduate students in ecology, population biology and entomology, as well as government and industry scientists doing research on pests, land managers, pest management personnel, extension personnel, conservation biologists and ecologists, and state, county and district foresters.

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.