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Imidacloprid Insecticide Treatments For Hemlock Woolly Adelgid Adelges Tsugae Annand Hemiptera Adelgidae Affect A Non Target Soil Arthropod Community Surrounding Eastern Hemlock Tsuga Canadensis L Carriere
Download Imidacloprid Insecticide Treatments For Hemlock Woolly Adelgid Adelges Tsugae Annand Hemiptera Adelgidae Affect A Non Target Soil Arthropod Community Surrounding Eastern Hemlock Tsuga Canadensis L Carriere full books in PDF, epub, and Kindle. Read online Imidacloprid Insecticide Treatments For Hemlock Woolly Adelgid Adelges Tsugae Annand Hemiptera Adelgidae Affect A Non Target Soil Arthropod Community Surrounding Eastern Hemlock Tsuga Canadensis L Carriere ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Xylem Transport Models Optimize Effectiveness of Systemic Insecticide Applications for Controlling Hemlock Woolly Adelgid (Adelges Tsugae) by : Chelcy R. Ford
Download or read book Xylem Transport Models Optimize Effectiveness of Systemic Insecticide Applications for Controlling Hemlock Woolly Adelgid (Adelges Tsugae) written by Chelcy R. Ford and published by . This book was released on 2010 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hemlock woolly adelgid (HWA, Adelges tsugae Annand) is causing widespread decline and mortality of eastern hemlock trees (Tsuga canadensis (L.) Carr.). Stem injection of insecticide is widely used as a control measure, but its effectiveness depends on individual tree hydraulic characteristics. Recent work has shown that eastern hemlock daily water use is exponentially related to tree diameter, with smaller-diameter trees using significantly less water than largerdiameter trees. In this study we modeled daily water use for 20 eastern hemlock trees across a range of diameters. Based on expected daily water use and, thus, potential xylem transport of insecticide, we applied a dosage estimated to achieve a lethal and uniform xylem sap concentration of imidacloprid to half the trees (xylem transport treatment), and treated the remaining half based on the manufacturerrecommended dosage (MFR treatment), which is a linear function of tree diameter. At 4 and 56 weeks after treatment, we assessed all trees for the presence or absence of new shoot growth and live HWA population density. We found that both treatment dosages significantly reduced live HWA populations; however, 4 weeks after treatment, live HWA population density was 32 percent lower (LSMEANS) on xylem transport treatment trees compared with MFR treatment trees (treatment by time interaction, P = 0.006). Both treatment dosages also significantly increased the proportion of new shoot growth; however, over time xylem transport treatment trees had a significantly greater increase in new shoot production compared with MFR treatment trees. We conclude that dosages based on a xylem transport model not only significantly improved tree health more than the trees receiving the current recommended dosage, but also caused greater reductions in the live HWA population. Improving treatment dosages would reduce treatment cost, nontargeted effects, and would allow land managers to treat a greater number of trees.
Book Synopsis Eastern Hemlock Forests by : Jeffrey S. Ward
Download or read book Eastern Hemlock Forests written by Jeffrey S. Ward and published by . This book was released on 2004 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Nico M. van Straalen Publisher :Springer Science & Business Media ISBN 13 :9780412759000 Total Pages :356 pages Book Rating :4.7/5 (59 download)
Book Synopsis Ecological Risk Assessment of Contaminants in Soil by : Nico M. van Straalen
Download or read book Ecological Risk Assessment of Contaminants in Soil written by Nico M. van Straalen and published by Springer Science & Business Media. This book was released on 1997-05-31 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many industrialized and developing countries are faced with the assessment of potential risks associated with contaminated land. A variety of human activities have left their impacts on soils in the form of elevated and locally high concentrations of potential toxicants. In several cases sources have not yet been stopped and contamination continues. Decisions on the management of contaminated sites and on the regulation of chemicals in the terrestrial environment require information on the extent to which toxicants adversely affect the life support function of soils. Ecological insights into the soil as an ecosystem may support such decisions. This book reviews the latest ecological principles that should be considered in this respect.
Book Synopsis A Contribution Toward a Monograph of the Adelginae (Phylloxeridae) of North America by : Percy Nicol Annand
Download or read book A Contribution Toward a Monograph of the Adelginae (Phylloxeridae) of North America written by Percy Nicol Annand and published by Stanford University Press. This book was released on 1983 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eastern Hemlock Forests by : Jeffrey S. Ward
Download or read book Eastern Hemlock Forests written by Jeffrey S. Ward and published by . This book was released on 2004 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 2017 Southeastern U. S. Pest Control Guide for Nursery Crops and Landscape Plantings by : Joseph C. Neal
Download or read book 2017 Southeastern U. S. Pest Control Guide for Nursery Crops and Landscape Plantings written by Joseph C. Neal and published by NC State Extension. This book was released on 2017-04-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This pest control guide is a project of the Southern Nursery IPM Working Group (SNIPM) and collaborators. Featuring 25 tables and 14 graphs, this guide provides up to date information about pest control products used in nursery crops and ornamental landscape plantings in the southeast. It is a quality resource on its own or as a supplement to more comprehensive integrated pest management (IPM) manuals for trees and shrubs. This publication and more comprehensive IPM manuals are available in free downloadable PDF versions from the SNIPM web site at https: //wiki.bugwood.org/SNIPM.
Book Synopsis Environmental Impact of Invertebrates for Biological Control of Arthropods by : Franz Bigler
Download or read book Environmental Impact of Invertebrates for Biological Control of Arthropods written by Franz Bigler and published by CABI. This book was released on 2006 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, intended for the scientific community involved in biological control and integrated pest management, commercial companies producing biological control agents, risk assessors and regulatory authorities, compiles the current methodologies used for assessing the environmental impacts of invertebrate biological control agents and guidelines in performing science-based risk assessments required for the future regulation of such organisms.
Download or read book Hemlock written by Anthony D'Amato and published by Yale University Press. This book was released on 2014-04-29 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: An appreciation of the beautiful, iconic, and endangered Eastern Hemlock and what it means to nature and society The Eastern Hemlock, massive and majestic, has played a unique role in structuring northeastern forest environments, from Nova Scotia to Wisconsin and through the Appalachian Mountains to North Carolina, Tennessee, and Alabama. A “foundation species” influencing all the species in the ecosystem surrounding it, this iconic North American tree has long inspired poets and artists as well as naturalists and scientists. Five thousand years ago, the hemlock collapsed as a result of abrupt global climate change. Now this iconic tree faces extinction once again because of an invasive insect, the hemlock woolly adelgid. Drawing from a century of studies at Harvard University’s Harvard Forest, one of the most well-regarded long-term ecological research programs in North America, the authors explore what hemlock’s modern decline can tell us about the challenges facing nature and society in an era of habitat changes and fragmentation, as well as global change.
Book Synopsis Integrating Biological Control into Conservation Practice by : Roy van Driesche
Download or read book Integrating Biological Control into Conservation Practice written by Roy van Driesche and published by John Wiley & Sons. This book was released on 2016-05-17 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive species have a critical and growing effect upon natural areas. They can modify, degrade, or destroy wildland ecosystem structure and function, and reduce native biodiversity. Landscape-level solutions are needed to address these problems. Conservation biologists seek to limit such damage and restore ecosystems using a variety of approaches. One such approach is biological control: the deliberate importation and establishment of specialized natural enemies, which can address invasive species problems and which should be considered as a possible component of restoration. Biological control can be an effective tool against many invasive insects and plants but it has rarely been successfully employed against other groups. Safety is of paramount concern and requires that the natural enemies used be specialized and that targeted pests be drivers of ecological degradation. While modern approaches allow species to be selected with a high level of security, some risks do remain. However, as in all species introductions, these should be viewed in the context of the risk of failing to reduce the impact of the invasive species. This unique book identifies the balance among these factors to show how biological control can be integrated into ecosystem restoration as practiced by conservation biologists. Jointly developed by conservation biologists and biological control scientists, it contains chapters on matching tools to management goals; tools in action; measuring and evaluating ecological outcomes of biological control introductions; managing conflict over biological control; and includes case studies as well as an ethical framework for integrating biological control and conservation practice. Integrating Biological Control into Conservation Practice is suitable for graduate courses in invasive species management and biological control, as well as for research scientists in government and non-profit conservation organizations.
Book Synopsis Parasitoid Community Ecology by : Bradford A. Hawkins
Download or read book Parasitoid Community Ecology written by Bradford A. Hawkins and published by . This book was released on 1994 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of parasitoid communities has direct relevance to general ecological theory and to the applied practice of biological control. Yet, despite the existence of a large and active international research community involved in the study of parasitoids, until now no books devoted to the theme of parasitoid community ecology have been available. Here, with a healthy mix of general discussions and specific examples such as tortricids and weevils, the authors constructively review and evaluate our understanding of these often very complex systems. The book emphasizes basic science, linking the discussion to wider areas such as population dynamics, food webs, competition, and community structure. The more applied end of the subject is covered in a section exclusively devoted to biological control. This book, the first to deal entirely with ecological aspects of parasitoid biology, offers summaries of the state of the field by leading researchers and identifies critical areas in need of further investigation. Students, researchers, and teachers in the field of ecology, animal behavior, entomology, forestry, and agriculture will all want to have a copy of the book on their shelves.
Book Synopsis From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species by : Helen E. Roy
Download or read book From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species written by Helen E. Roy and published by Springer Science & Business Media. This book was released on 2008-01-26 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmonia axyridis has been described as the “most invasive ladybird on Earth”. It has a long history of use as a classical biological control agent in the USA and more recently in Europe. This beetle has been effective at controlling pest insects in a variety of crop systems but it poses unacceptable risks by impacting on non-target species as both an intraguild predator and competitor. Written by renowned scientists, this book is a synthesis of recent research on H. axyridis and provides informative insights into current perspectives and future directions. Biological control is an essential component of sustainable agriculture but the distinction between a successful biological control agent and an invasive species can be narrow. We hope that lessons can be learnt from H. axyridis.
Book Synopsis Insect Nicotinic Acetylcholine Receptors by : Steeve Hervé Thany
Download or read book Insect Nicotinic Acetylcholine Receptors written by Steeve Hervé Thany and published by Springer Science & Business Media. This book was released on 2011-01-11 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to summarize our understanding on the insect nicotinic acetylcholine receptors. This area of research received great impetus from the identification of the first subunit sequences to be used as neonicotinoid insecticide target sites. Although a book of this nature can provide the details only of commonly published results, it is hoped that it may provide a useful guide to the newcomer to the field as well as to point out some of the future challenges. For example, we need to determine the precise subunit nomenclature of insect nicotinic receptors. This nomenclature varies amongst species and this led to some of the early confusion that persists. We need to be precise in identifying the subunit composition of native insect nicotinic receptor subtypes, their functional properties and physiological roles.
Book Synopsis Adventitious root formation of forest trees and horticultural plants - from genes to applications by : Karoliina Niemi
Download or read book Adventitious root formation of forest trees and horticultural plants - from genes to applications written by Karoliina Niemi and published by . This book was released on 2009 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecological Effects of Pesticides on Non-target Species by : David Pimentel
Download or read book Ecological Effects of Pesticides on Non-target Species written by David Pimentel and published by . This book was released on 1971 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mono- and Di-Potassium Salts of Phosphorous Acid by : Canada. Pest Management Regulatory Agency
Download or read book Mono- and Di-Potassium Salts of Phosphorous Acid written by Canada. Pest Management Regulatory Agency and published by . This book was released on 2010 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Health Canada's Pest Management Regulatory Agency (PMRA) has granted conditional registration for the sale and use of Mono- and Di-Potassium Salts of Phosphorous Acid and Confine containing the technical grade active ingredient mono- and di-potassium salts of phosphorous acid for suppression of late blight and pink rot on harvested potato tubers. This report summarizes the information that was evaluated and provides the results of the evaluation as well as the reasons for the registration decision, with an outline of the additional scientific information required from the applicant. It also describes the conditions of registration that the applicant must meet to ensure that the health and environmental risks as well as the value of these pest control products are acceptable for their intended use. The Overview describes the key points of the evaluation, while the Science Evaluation section provides detailed technical information on the human health, environmental and value assessments of Mono- and Di-Potassium Salts of Phosphorous Acid and Confine.--Document.
Book Synopsis Modern Crop Protection by : J. C. Zadoks
Download or read book Modern Crop Protection written by J. C. Zadoks and published by Purdue University Press. This book was released on 1993 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hemlock Woolly Adelgid written by and published by . This book was released on 2005 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
