Download or read book Genetic Control of the German Cockroach written by Mary H. Ross and published by . This book was released on 1977 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors investigated the possibility of controlling the German cockroach, Blattella germanica, by using chromosome translocations. The first objective involved study of wild-type laboratory and field populations. The origin, hatch, and development of nymphal groups that determine the growth and age structure of a laboratory population were analyzed. Properties of 9 single translocations were studied under Objective 2. Eight showed good competitiveness, 1 marginal, and 1 poor. Eight were established in backcross systems to closely linked markers. Single translocations retarded but did not suppress population growth. The authors found that the sterility effect, embryonic trapping, that is used in population suppression by double translocations is due to a reduction in the numbers of viable embryos/ootheca. The frequency of sterile egg cases increases sharply at lethalities of 60-80%, with complete sterility at lethalities of 80% or better. They conclude that double translocations are the most effective method of using translocations for control in B. germanica. Such mechanisms are potentially capable of reducing field populations.
Download or read book Biology and Management of the German Cockroach written by Changlu Wang and published by CSIRO PUBLISHING. This book was released on 2021-05-03 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a species, the German cockroach is one of the most widespread indoor urban pests worldwide. While numerous products have been developed to control their spread, German cockroaches continue to contaminate food, transmit disease and cause significant, long-term economic expense to homes, restaurants, hospitals and more. Biology and Management of the German Cockroach summarises the many advances in management technology, products, delivery systems, and basic and applied research over the past 25 years. Leading researchers explain why the German cockroach is a medically important pest and how its microbiome can provide new insights on cockroach physiology and potential novel targets for control. The authors also address the research from a practical standpoint, detailing why baits have replaced sprays as the primary method of control and how population genetic studies allow for better understanding of cockroach dispersal and population structure. Leading experts on integrated pest management (IPM) explore how studies on German cockroach control programs demonstrate the value and feasibility of IPM in urban environments. This book provides the reader with a comprehensive understanding of the German cockroach and will be a valuable reference for researchers, graduate students, pest management professionals, health workers and government agencies dealing with urban pests and pesticides.
Download or read book Understanding and Controlling the German Cockroach written by Michael K. Rust and published by Oxford University Press. This book was released on 1995-01-05 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The German cockroach is considered to be the most resilient and ecologically important insect pest found in homes, apartments, and commercial facilities in the United States and across the world. This book expertly provides up-to-the-minute information about the behavior and biology of this pest--including taxonomy, distribution, morphology, and genetics--as it may relate to effective technologies for its control. Building on information presented piecemeal in books and articles appearing over more than 50 years, the book features over 1,200 references related to the German cockroach, most published within the last year. With contributions from the top experts, the book will be invaluable to students and practitioners of entomology and pest management.
Download or read book The Use of Double Translocation Heterozygotes To Control Populations of the German Cockroach and the Use of Genetic Mechanisms and Behavioral Characteristics To Control Natural Populations of the German Cockroach written by Mary H. Ross and published by . This book was released on 1986 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research under Phase I was direct towards developing and testing double translocation heterozgotes as possible mechanisms for genetic control of the german cockroach. An initial laboratory experiment showed that releasing males carrying a single 2-chromosome translocation retarded but did not suppress population growth. Double translocations impart a higher genetic load. Their potential for suppressing and possbily eliminating infestations is substantially increased by an eggg case sterility effect, 'embryonic trapping'. During Phase II of the research shipboard roach population were studied. Estimates of population growth indicated that free populations developing under essentially optimal conditions would show a 20 to 26-fold increase in a 3-month period. Trapping data showed that: peaks of highest density in a thoroughly-trapped area best indicated the location of spot infestations; catch close to localized aggregations gave reasonably good indications of relative density; traps between spot infestations could not be used for density estimations; and that age class frequency in traps was unlike that in nearby infestations. Age class structure of rapidly-growing groups differed from that of groups where harborage availability limited growth. The last three shipboard experiments on the effects of propoxur treatment on populations established in known locations. The relationship between food and water consumption and female reproductive state was also studied. Studies on aggregation pheromone and a less well known dispersal pheromone revealed differences in response with age/sex class.
Download or read book The Use of Genetic Mechanisms and Behavioral Characteristics to Control Natural Populations of the German Cockroach written by Mary H. Ross and published by . This book was released on 1981 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pilot field test of genetically-induced sterile male was concluded. The experimental design involved low-level releases of males carrying double translocations with the aim of eliminating or, at least inhibiting rapid re-growth of pockets of cockroaches left after routine insecticide treatment. The results were positive in that the males were easily introduced into natural groups, within which they competed well against wild-type males. However, it also became apparent that the effective use of these males would require a more thorough understanding of natural populations. The work conducted during the past year involved the initiation of some of these studies, along with preparation of data from the sterile-male experiment for publication.
Download or read book Understanding and Controlling the German Cockroach written by Michael K. Rust and published by Oxford University Press, USA. This book was released on 1995 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The German cockroach is considered to be the most significant insect pest of homes in many countries of the world. This book provides updated information about the biology and behaviour of this pest including taxonomy and distribution, morphology, and genetics. Effective strategies and the use of technology to control the pest are considered. There are more than 1,200 cited references which make this a comprehensive reference book.
Download or read book Population Genetics of the German Cockroach Blattella Germanica L in South East Asia Using Microsatellite Techniques written by and published by . This book was released on 2013 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research aimed to study molecular population genetic of B. germanica in term of allelic variation, characterization of genetic diversity, population structure and phylogenetic relationships among populations inferred from microsatellite DNA markers. Being recognized as an economic and medical pest, a clearer understanding of how cockroach population are connected within and between geographical isolates, may therefore represents a significant understanding of commensal species management and control strategies.
Download or read book Biology and Management of the German Cockroach written by Changlu Wang and published by CSIRO PUBLISHING. This book was released on 2021-05-03 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a species, the German cockroach is one of the most widespread indoor urban pests worldwide. While numerous products have been developed to control their spread, German cockroaches continue to contaminate food, transmit disease and cause significant, long-term economic expense to homes, restaurants, hospitals and more. Biology and Management of the German Cockroach summarises the many advances in management technology, products, delivery systems, and basic and applied research over the past 25 years. Leading researchers explain why the German cockroach is a medically important pest and how its microbiome can provide new insights on cockroach physiology and potential novel targets for control. The authors also address the research from a practical standpoint, detailing why baits have replaced sprays as the primary method of control and how population genetic studies allow for better understanding of cockroach dispersal and population structure. Leading experts on integrated pest management (IPM) explore how studies on German cockroach control programs demonstrate the value and feasibility of IPM in urban environments. This book provides the reader with a comprehensive understanding of the German cockroach and will be a valuable reference for researchers, graduate students, pest management professionals, health workers and government agencies dealing with urban pests and pesticides.
Download or read book The Use of Double Translocations to Control Populations of the German Cockroach written by Mary H. Ross and published by . This book was released on 1979 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project is to conduct a field test of a unique type of sterility mechanism, embryonic trapping, for control of the German cockroach, Blattella germanica (L.). Trapping of viable embryos occurs when their number is reduced by genetic lethality to a point at which they are unable to force open the egg case at the time of hatch. Sterile egg cases occur frequently in matings of double translocation heterozygotes. Their frequency depends on the amount of lethality characteristic of the particular double. Using sex differences in lethality (chromosome disjunction) of certain single translocations, it has been possible to establish a crossing system for producing totally sterile double translocation-carrying males. One of the important points emerging from this year's study is that releases of sterile males may be very small indeed - certainly much smaller than a pre-cleanout population. Nevertheless, the sterile males are potentially capable of suppressing population growth or, if completely successful, of leading to the elimination of small residual populations.
Download or read book Cockroaches written by William J. Bell and published by JHU Press. This book was released on 2007-07-27 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential volume on the biology and behavior of these remarkable insects. “This transformative work will be an inspiration to students of entomology.” —Choice The cockroach is truly an evolutionary wonder. This definitive volume provides a complete overview of suborder Blattaria, highlighting the diversity of these amazing insects in their natural environments. Beginning with a foreword by Edward O. Wilson, the book explores the fascinating natural history and behavior of cockroaches, describing their various colors, sizes, and shapes, as well as how they move on land, in water, and through the air. In addition to habitat use, diet, reproduction, and behavior, Cockroaches covers aspects of cockroach biology, such as the relationship between cockroaches and microbes, termites as social cockroaches, and the ecological impact of the suborder. With over 100 illustrations, an expanded glossary, and an invaluable set of references, this work is destined to become the classic book on the Blattaria. Students and research entomologists can mine each chapter for new ideas, new perspectives, and new directions for future study. “Well-written . . . visually attractive . . . This book is much needed to educate biologists about the fascinating biology and diversity of cockroaches.” —Integrative and Comparative Biology “A must-have for any insect hobbyest.” —Allpet Roaches Forum “This contribution is an important source of information on cockroach natural history and diversity.” —The Quarterly Review of Biology “Suitable for researchers, students, and naturalists, chapters are topical, exploring the diversity of cockroaches.” —Southeastern Naturalist
Download or read book Laboratory studies on the control of the German cockroach Blattella germanica written by Jing-Jiang Zhou and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book German Cockroach Management in Low Income Housing written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect Metamorphosis written by Xavier Belles and published by Academic Press. This book was released on 2020-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insect Metamorphosis: From Natural History to Regulation of Development and Evolution explores the origin of metamorphosis, how it evolved, and how it is it regulated. The book discusses insect metamorphosis as a key innovation in insect evolution. With most of the present biodiversity on Earth composed of metamorphosing insects—approximately 1 million species currently described, with another 10-30 million still waiting to be discovered, the book delves into misconceptions and past treatments. In addition, the topic of integrating insect metamorphosis into the theory of evolution by natural selection as noted by Darwin in his On the Origin of Species is also discussed. Users will find this to be a comprehensive and updated review on insect metamorphosis, covering biological, physiological and molecular facets, with an emphasis on evolutionary aspects. Features updated knowledge from the past decade on the mechanisms of action of juvenile hormone, the main doorkeeper of insect metamorphosis Aids researchers in entomology or developmental biology dealing with specialized aspects of metamorphosis Provides applied entomologists with recently updated data, especially on regulation, to better face the problems of pest control and management Gives general evolutionary biologists context on the process of metamorphosis in its larger scope
Download or read book German Cockroach Blattella Germanica L Control Studies with Acephate in Low Volume Volatile and Non volatile written by Charles E. Tatem and published by . This book was released on 1974 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Health Significance of Urban Pests written by Xavier Bonnefoy and published by World Health Organization. This book was released on 2008 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.]
Download or read book Integument Respiration and Circulation written by G. A. Kerkut and published by Elsevier. This book was released on 2013-10-22 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is primarily devoted to the analysis of the integument (epidermis, cuticle), the fat body, the connective tissues, the circulatory and respiratory systems. It discusses the organization and functioning of the insect systems implicated in growth, intermediary metabolism, homeostasis and defence mechanisms. Much of the volume is devoted to anatomical and structural developments, which appear as introductions to corresponding biochemical and physiological aspects. Many diagrams, drawings and photographs accompany the text throughout. Altogether, this volume presents a clear and up-to-date account of the most recent and important discoveries in the fields and shows the extent of progress which is expected in the near future.
Download or read book Control of German cockroach Blattela germanica L in public housing with combinations of various insecticides written by Sherylee J. Thompson and published by . This book was released on 1995 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
