A Classification of the Scale Insect Genus Asterolecanium PDF Download
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Author: Louise May Russell
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 338
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Book Description
This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.
Author: Louise May Russell
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 338
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Book Description
This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.
Author: Louise May Russell
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 338
Get Book Here
Book Description
This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.
Author: Louise May Russell
Publisher:
ISBN:
Category : Asterolecanium
Languages : en
Pages : 322
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Book Description
This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.
Author: Louise May Russell
Publisher: Forgotten Books
ISBN: 9781396083112
Category : Science
Languages : en
Pages : 342
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Book Description
Excerpt from A Classification of the Scale Insect Genus Asterolecanium Although species of Asterolecaniwm, have been found on at least 37 plant families ranging from the Gramineae to the Compositae, they are most numerous on the Gramineae, Palmae, and Fagaceae. The species occurring on bamboos, palms, and oaks are, so far as known, limited to their respective host groups, but others may be found on members of several plant families, and still others appear to have a marked preference for a single host family and rarely occur on other, unrelated, hosts. Some members of the genus seem to be restricted in their feeding to one part of a plant, such as the leaves, stems, or bark, while others live indiscriminately on leaves, stems, twigs, fruit, and trunk. Some species apparently never produce pits, while others cause pits in some plants but not in others; thus the habit seems partially dependent upon the susceptibility of the host to pit formation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Louise M. Russell
Publisher:
ISBN:
Category : Asterolecanium
Languages : en
Pages : 322
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Book Description
Author: Yair Ben-Dov
Publisher: Elsevier
ISBN: 0080465315
Category : Science
Languages : en
Pages : 392
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Book Description
A Systematic Catalogue of Soft-Scale Insects is a synthesis and catalogue of all the information published on eight families of scale insects (Hemiptera: Coccoidea) worldwide from 1758 to the present. Data is provided on their correct scientific names, common names, synonyms, taxonomy, host plants, distribution, natural enemies, biology, and economic importance. This book will be a valuable compendium of biological and systematic information for zoologists, entomologists, crop protection specialists, quarantine officers, students studying entomology and related disciplines, and others who require information about scale insects for research and control projects. - Aclerdidae - 57 species in 5 genera - Asterolecaniidae - 229 species in 21 genera - Beesoniidae - 15 species in 6 genera - Carayonemidae - 4 species in 4 genera - Conchaspididae - 29 species in 4 genera - Dactylopiidae - 10 species in 1 genus - Kerriidae - 97 species in 9 genera - Lecanodiaspididae - 82 species in 12 genera
Author: Saliou Niassy
Publisher: Springer Nature
ISBN: 3030410838
Category : Science
Languages : en
Pages : 313
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Book Description
Invasive species, generally, affect economically important crops, thus affecting the livelihoods of millions of people along crop value chains. Typically, invasive species have high migratory capabilities and, because of plant material exchanges made during trade, they cannot be contained by one country. Usually, African countries react after a pest has invaded and established itself in the country, making the cost of mitigating the pest even more expensive. This book presents a pan-African view of the impacts of invasive insect pests on agriculture and of how invasive species impact on productivity in Africa. It not only describes their importance, but also presents a diversity of research findings in the field, ranging from the use of early warning and monitoring systems for quarantine purposes, agricultural extension, all the way to control strategies. The IPM arsenal presented in this book includes the use of botanical bioactive compounds, semiochemicals, resistant varieties, biological control agents such as entomopathogens, endophytes, predators, and natural enemies. Aspects of technology transfer strategies, regional coordination, and farmers’ perceptions have not been overlooked, because these affect the adoption of mitigation strategies. The book also presents measures that would help agricultural research services to estimate the damage and take actions for preparedness and readiness to face invasive insect pests. This starts with a basic knowledge of taxonomy to enable concerned persons to describe the insects and the vast inventory of affected crops. Physiological and ecological aspects of invasive pests are strongly highlighted to strengthen Integrated Pest Management Strategies. The threat of invasive species will remain permanent; therefore, the book encourages knowledge exchange and collaboration between researchers and scientists on the continent, while encouraging the establishment of a platform or a fund for preparedness and rapid response.
Author: Louise May Russell
Publisher:
ISBN: 9780371949627
Category :
Languages : en
Pages : 344
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Book Description
This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy!
Author: M. Kosztarab
Publisher: Springer Science & Business Media
ISBN: 9400940459
Category : Science
Languages : en
Pages : 472
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Book Description
This book is dedicated to the scientists whose professional devotion and accomplish ments in research on scale insects of the area made the compilation of this book possible. This book has two primary objectives: (1) to enable interested workers, who are not specialists of scale insects, to recognize and indentify these to families, genera and species; and (2) to provide information on the life cycle, host-plant range, natural enemies, geographical distribution, economic importance for each known species from Central Europe, and to provide a bibliography on each taxa covered. Scale insects are important pests of fruit and nut trees, forest vegetation, woody ornamentals, greenhouse and indoor plants. World-wide losses and increased production costs attributed to scale insects are estimated to reach $5 billion annually. It is difficult to recognize them because of their microscopic size and hidden habits. Identification of pest species enables plant growers to check appropriate reference sources for biological information and to select control methods.
