Download or read book Sharpshooter Leafhoppers Hemiptera Cicadellinae written by M. R. Wilson and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sharpshooter leafhoppers Hemiptera Cicadellinae written by M. R. Wilson and published by . This book was released on 2009-01-01 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Systematic Studies on the Leafhopper Subfamily Cicadellinae Hemiptera Cicadellidae written by Daniela Maeda Takiya and published by . This book was released on 2007 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cicadellinae includes approximately 340 genera and over 2,000 species distributed worldwide, with member commonly referred to as sharpshooters. Sharpshooters are specialists on xylem sap, one of the nutritionally poorest diets, along with related cicadas and spittlebugs. Statistical analyses using phylogenetic contrasts of hemipteran body sizes did not show a significant increase in xylem feeding lineages, but results should be viewed cautiously. Sharpshooters host two mutualistic bacterial endosymbionts to complement their poor diet. Phylogenetic analyses were conducted based on the 16SrDNA from Baumannia and Sulcia and on COI, COII, 16SrDNA, and H3 for 29 leafhopper hosts. A congruent evolutionary history of both Baumannia and Sulcia with their sharpshooter hosts is supported based on all (Baumannia) or most (Sulcia ) statistical tests conducted here, suggesting a long-term association of these bacteria with their hosts. Additionally in this thesis, studies on the taxonomy of economically important genus Homalodisca are presented. Finally, incongruence in the higher-level classification of Cicadellinae is mainly due to the lack of robust phylogenetic hypotheses, like the one presented in this thesis. A morphological study based on 183 characters coded for 170 taxa and a molecular study based on partial regions of COI, COII, 16S rDNA, and H3 gene sequences from 91 taxa. Results support changes in the higher-level classification of Cicadellinae including: the erection of the tribe Oncometopiini based on previous members of the Proconiini; the treatment of Phereurhinini within the subfamily Cicadellinae; and placements of 9 genera in different tribes. Furthermore, based on a combined analysis, the origin of the egg-powdering behavior and related sexually-dimorphic morphological characteristics were studied. Results suggest a single origin of the egg-powdering behavior, possibly in the ancestor of Phereurhinini and Oncometopiini. Modifications of the female hindlegs for scraping the brochosomes off onto the egg nests were also acquired once in the ancestor of the Oncometopiini, while modifications on the female forewing setation for better anchoring of brochosome pellets, seem to have been acquired multiple times. Multiple losses of the behavior and its related associated traits occurred in various oncometopiine lineages.

Download or read book The Effects of Local and Landscape Context on Leafhopper Hemiptera Cicadallinae Communities in Coffee Agroforestry Systems of Costa Rica written by Mariange Ramos and published by . This book was released on 2008 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharpshooters (Hemiptera: Cicadellidae: Cicadellinae) are potential vectors of Xylella fastidiosa, the bacterial causal agent of coffee "crespera" disease. This study examined the effects of local (shade composition, organic or conventional management, and weed management) and landscape (surrounding land uses) context on sharpshooter communities in coffee agroforestry systems (CAFS) within the Volcánica Central-Talamanca Biological Corridor (VCTBC), in Costa Rica. On a broader perspective, this study also sought to evaluate how the ecosystem service of natural pest control overlaps with other ecosystem services provided by CAFS and how decision makers view these services. The abundance and species richness of sharpshooters were evaluated in four CAFS types present in the VCTBC, using yellow sticky traps and Malaise migration traps in 2005 and 2006. Approximately 73 species of sharpshooters were found in CAFS within the VCTBC. Sharpshooters were more abundant from June to September and declined afterwards. Sharpshooter communities were distinct in each agroforestry system, and coffee sharpshooter communities were more similar to pasture than to forest sharpshooter communities. Shade was a key local variable, negatively affecting sharpshooter abundance. Weed management did not affect sharpshooter communities. Sharpshooters were more abundant at edges of coffee farms, and appeared to move from forests to coffee farms. Surrounding area in forest was positively correlated to sharpshooter abundance. Surrounding area in fallow was positively correlated to species richness. Overlapping of GIS layers of ecosystem services provided by CAFS revealed that there is more land of the VCTBC where natural pest control overlaps with watershed services than with biodiversity services. Interview data showed that natural pest control was more important for decision makers than all other services, except connectivity. Decision makers value ecosystem services in the planning of corridor activities, in addition to location and organization level of corridor areas. Although research is needed on the epidemiology of X. fastidiosa, we found that species that have tested positive for the presence of the bacteria are negatively affected by shade. Increasing shade could be a strategy for management of these species in coffee agroforestry systems. This practice also increases the level of other ecosystem services provided by coffee agroforestry systems.

Download or read book Taxonomic Catalogue of the Leafhoppers Membracoidea written by Stuart H. McKamey and published by . This book was released on 2007 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Review of the Neotropical Sharpshooter Genus Onega Distant 1908 Hemiptera Cicadellidae Cicadellini written by Daniela Maeda Takiya and published by . This book was released on 2004 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sucking Pests of Crops written by Omkar and published by Springer Nature. This book was released on 2020-10-12 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sucking pests are most notorious group of pests for agricultural crops. Unlike most pests with chewing mouth parts, sucking pests cause more severe damage to the crops and are complex to get identified until advanced stages of infection. Not only is this late detection detrimental to their effective control, sucking pests also often cause fungal growth and virus transmission. The book emphasizes on sucking pests of most major crops of India. It aims to reflect Indian scenario before the international readership. This book complies comprehensive information on sucking pests of crops and brings the attention of the readers to this multiple damage causing insect complex. The chapters are contributed by highly experienced Indigenous experts from Universities & ICAR institutes, and book collates useful content for students and young researchers in plant pathology, entomology and agriculture.

Download or read book The Leafhopper Vectors of Phytopathogenic Viruses Homoptera Cicadellidae written by Mervin William Nielson and published by . This book was released on 1968 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In the Light of Evolution written by National Academy of Sciences and published by . This book was released on 2007 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.

Download or read book Global Health Impacts of Vector Borne Diseases written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-10-21 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pathogens transmitted among humans, animals, or plants by insects and arthropod vectors have been responsible for significant morbidity and mortality throughout recorded history. Such vector-borne diseases â€" including malaria, dengue, yellow fever, and plague â€" together accounted for more human disease and death in the 17th through early 20th centuries than all other causes combined. Over the past three decades, previously controlled vector-borne diseases have resurged or reemerged in new geographic locations, and several newly identified pathogens and vectors have triggered disease outbreaks in plants and animals, including humans. Domestic and international capabilities to detect, identify, and effectively respond to vector-borne diseases are limited. Few vaccines have been developed against vector-borne pathogens. At the same time, drug resistance has developed in vector-borne pathogens while their vectors are increasingly resistant to insecticide controls. Furthermore, the ranks of scientists trained to conduct research in key fields including medical entomology, vector ecology, and tropical medicine have dwindled, threatening prospects for addressing vector-borne diseases now and in the future. In June 2007, as these circumstances became alarmingly apparent, the Forum on Microbial Threats hosted a workshop to explore the dynamic relationships among host, pathogen(s), vector(s), and ecosystems that characterize vector-borne diseases. Revisiting this topic in September 2014, the Forum organized a workshop to examine trends and patterns in the incidence and prevalence of vector-borne diseases in an increasingly interconnected and ecologically disturbed world, as well as recent developments to meet these dynamic threats. Participants examined the emergence and global movement of vector-borne diseases, research priorities for understanding their biology and ecology, and global preparedness for and progress toward their prevention, control, and mitigation. This report summarizes the presentations and discussions from the workshop.

Download or read book Forest Microbiology written by Fred O. Asiegbu and published by Elsevier. This book was released on 2022-07-28 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest Microbiology: Tree Diseases and Pests, Volume Three in the Forest Microbiology series, provides an overview of major disease agents of trees, including viruses, phytoplasma, bacteria, fungi, nematodes and major insect pests. With a strong emphasis on genetics, biochemistry, physiology, evolutionary biology and population dynamics of the organisms involved, this book provides a comprehensive understanding on the health of forests. Sections cover important pest threats such as bark beetles, emerald ash borer, coffee borers, leaf cutting ants, cocoa mirids, and more. This volume highlights a range of emerging diseases of forest trees in temperate and tropic regions as well as information on habitats. Forest trees play crucial roles not only for mitigating effects of the climate change but also for their considerable economic and ecological value. Forest trees are equally vital as an alternative bioenergy source and play important roles in pollution abatement and the maintenance of biodiversity. Timber and its associated products from forest trees contribute substantially to the revenue generation of many countries of the world. Includes case studies of complex diseases of economically important trees Highlights novel approaches to managing tree pests and diseases in a changing climate Focuses on the many functions of microbial disease agents of trees Addresses major insect pests of boreal, temperate and tropical trees

Download or read book Principles and Applications of Electronic Monitoring and Other Techniques in the Study of Homopteran Feeding Behavior written by Gregory Paul Walker and published by . This book was released on 2000 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of the Hemiptera of American North of Mexico Excepting the Aphididae Coccidae and Aleurodidae written by Edward Payson Van Duzee and published by . This book was released on 1917 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Leafhoppers Cicadellidae written by P. W. Oman and published by Oxford University Press, USA. This book was released on 1990 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genomics of Plant Associated Bacteria written by Dennis C. Gross and published by Springer. This book was released on 2014-06-16 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how genomics has revolutionized our scientific understanding of agriculturally important plant-associated bacteria. Each chapter focuses on the genomics of particular bacteria: the first described plant pathogen, Erwinia amylovora; phytoplasmas lacking cell walls; fastidious, phloem-restricted liberibacters; Pseudomonas syringae, which is a genetically tractable model system; Xanthomonas citri, which causes a disease that can devastate citrus crops and Pseudomonas fluorescens, which can protect plants from diseases. Topics considered in this volume include the importance of horizontal gene transfer in originating new bacterial strains and species and advances in transcriptomics that allow us to describe the complex regulatory networks critical to plant-microbe interactions. The availability of the Xanthomonas oryzae genome has led to new technologies in genome editing, which will revolutionize approaches to genetic engineering, even in eukaryotes. The contributions show how genomics has greatly accelerated progress toward understanding the biology of these bacteria and how that understanding can be translated into novel crop protection methods.

Download or read book Bemisia Bionomics and Management of a Global Pest written by Philip A. Stansly and published by Springer Science & Business Media. This book was released on 2010-06-16 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bemisia tabaci (Gennedius) has distinguished itself from the more than 1,000 whitefly species in the world by its adaptability, persistence and potential to damage a wide range of agricultural and horticultural crops in all six of the world’s inhabited continents. B. tabaci inflicts plant damage through direct feeding, inducement of plant disorders, vectoring of plant viruses and excretion of honeydew. This book collates multiple aspects of the pest ranging from basic to applied science and molecular to landscape levels of investigation. Experts in multiple disciplines provide broad, but detailed summaries and discussion of taxonomy, genetics, anatomy, morphology, physiology, behavior, ecology, symbiotic relationships, virus vector associations and various tactics for integrated management of this pest insect. The book is focused primarily on progress during the last 10-15 years and is directed at workers in the field as well as the informed professional who may not necessarily specialize in whitefly research. The book is unique in providing broad coverage in relatively few chapters by recognized experts that highlight the state-of-the-art in our understanding of this fascinating but troublesome cosmopolitan pest.

Download or read book Vector Mediated Transmission of Plant Pathogens written by Judith K. Brown and published by . This book was released on 2016 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: