Author: Leland Ossian HowardPublisher:
ISBN:
Category : Flies
Languages : en
Pages : 380
Book Description
The House Fly, Disease Carrier
Author: Leland Ossian HowardPublisher:
ISBN:
Category : Flies
Languages : en
Pages : 380
Book Description
The House Fly as a Carrier of Disease
Author: Edward Hatch (Jr.)The House Fly, Disease Carrier
Author: Leland Ossian HowardPublisher:
ISBN:
Category : Diptera
Languages : en
Pages : 382
Book Description
Excerpt from book: II THE NATURAL ENEMIES OF THE TYPHOID AS with every other living creature, nature makes its own effort to limit the abundance of the fly under consideration, and the extraordinary facility for multiplication which the fly possesses is in turn the result of the instinctive effort of the organism to maintain its status in spite of the numerous enemies which confront it. The natural enemies of the house fly begin with the acme of the vertebrate series (man himself) and end with the lower forms of plant life, and we will begin our consideration of these agencies with the latter forms. Fungous Diseases In the autumn it is a matter of common observation that many flies in houses and on the windows become sluggish and frequently die in such positions. The sluggishness may be accounted for in a measure by the advent of cold weather, and as a matter of fact cold weather frequently drives indoors other species of flies of a more sluggish nature than the house fly. In this way the so-called cluster fly (Pollenia rudis), a rather sluggish species, which will be referred to in another chapter, is frequently found in houses in the autumn. But the principal cause of the sluggishness on the part of the house fly in the autumn is the attack of fungous diseases. Sometimes they are found to be dead without any evidence of the cause of death. Later they are seen to be surrounded by a white fungus growth. There is a group of fungi belonging to the En- tomophthoreae, many of which are parasitic upon insects. There are several genera in this group, but the only one which need be considered at present is the genus Empusa. The fungi of this group have been studied by Dr. Roland Thaxter of Harvard University, and it is from his writings that the following statements have been drawn.
The house fly, disease carrier; an account of its dangerous
Author: Leland Ossian HowardPublisher:
ISBN:
Category :
Languages : en
Pages : 378
Book Description
Handbook of Medical Entomology
Author: William Albert RileyPublisher:
ISBN:
Category : Entomology
Languages : en
Pages : 374
Book Description
Medical Entomology
Author: B.F. EldridgePublisher: Springer Science & Business Media
ISBN: 940116472X
Category : Medical
Languages : en
Pages : 723
Book Description
This book is designed primarily as a textbook for graduate and postgraduate courses in Medical, Public Health and Veterinary Entomology. Its uniqueness is that its emphasis is on disease as opposed to arthropods. It includes general discussions of epidemiology, transmission, disease control, vector control and disease surveillance. In addition, it contains chapters oriented towards the many specific arthropod-borne diseases. Furthermore, the book discusses the many direct impacts that parasitic insects have on human and animal health. The arthropods themselves are dealt with in two introductory chapters.
Fleas of Public Health Importance and Their Control
Author: Harry D. PrattLife Cycle and Development of Diptera
Author: Muhammad SarwarPublisher: BoD – Books on Demand
ISBN: 1838802258
Category : Science
Languages : en
Pages : 184
Book Description
Diptera, or true flies, are of considerable economic importance, as these flies have a valuable role as scavengers, parasitoids and predators of other insects, pollinators, food for predators, bio-indicators of water quality, and tools for scientific research. In nine chapters, this book examines various aspects of flies of the order Diptera as well as some types of mosquitos and midges. Topics covered include taxonomy, phylogeny, life cycle, feeding habits, population control strategies, and more. A unique chapter on forensic entomology is particularly interesting. Beautifully illustrated and expertly researched, this volume will appeal to entomologists, biologists, and naturalists.
Public Health Significance of Urban Pests
Author: Xavier BonnefoyPublisher: World Health Organization
ISBN: 9289071885
Category : Medical
Languages : en
Pages : 293
Book Description
The second half of the 20th century and the beginning of the 21st century witnessed important changes in ecology, climate and human behaviour that favoured the development of urban pests. Most alarmingly, urban planners now face the dramatic expansion of urban sprawl, in which city suburbs are growing into the natural habitats of ticks, rodents and other pests. Also, many city managers now erroneously assume that pest-borne diseases are relics of the past. All these changes make timely a new analysis of the direct and indirect effects of present-day urban pests on health. Such an analysis should lead to the development of strategies to manage them and reduce the risk of exposure. To this end, WHO invited international experts in various fields - pests, pest-related diseases and pest management - to provide evidence on which to base policies. These experts identified the public health risk posed by various pests and appropriate measures to prevent and control them. This book presents their conclusions and formulates policy options for all levels of decision-making to manage pests and pest-related diseases in the future. [Ed.]
Optimal Control Applied to Biological Models
Author: Suzanne LenhartPublisher: CRC Press
ISBN: 1420011413
Category : Mathematics
Languages : en
Pages : 272
Book Description
From economics and business to the biological sciences to physics and engineering, professionals successfully use the powerful mathematical tool of optimal control to make management and strategy decisions. Optimal Control Applied to Biological Models thoroughly develops the mathematical aspects of optimal control theory and provides insight into t