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Author: Publisher: ISBN: Category : Cottonwood Languages : en Pages : 44
Book Description
Insects and disease organisms are a continuing threat to cottonwood (Populus deltoides Bartr.), especially during the tree's first 5 years. The danger is intensified in large plantings of a single species and age because rapid buildup of damaging agents can occur. This booklet, will help forest nurserymen and plantation managers identify and control pest problems. The major insects and diseases are illustrated; and information on their importance, signs of infestation, biology, and natural control is presented. Brief mention is made of other pests which may be of local or sporadic concern. A list of registered chemical controls is also provided. This list is subject to change as new materials are approved, and revisions will be made available at periodic intervals.
Author: Publisher: ISBN: Category : Cottonwood Languages : en Pages : 44
Book Description
Insects and disease organisms are a continuing threat to cottonwood (Populus deltoides Bartr.), especially during the tree's first 5 years. The danger is intensified in large plantings of a single species and age because rapid buildup of damaging agents can occur. This booklet, will help forest nurserymen and plantation managers identify and control pest problems. The major insects and diseases are illustrated; and information on their importance, signs of infestation, biology, and natural control is presented. Brief mention is made of other pests which may be of local or sporadic concern. A list of registered chemical controls is also provided. This list is subject to change as new materials are approved, and revisions will be made available at periodic intervals.
Author: Kathleen Cain Publisher: Big Earth Publishing ISBN: 9781555663704 Category : Nature Languages : en Pages : 276
Book Description
And so poet and naturalist Kathleen Cain fell in love with the cottonwood tree. Regarded by many as a nuisance, a "trash tree," the cottonwood not only has a fascinating history, it has served noble purposes as well. Ranging from Vermont to Arizona to Alaska, this native North American tree, in various sizes, shapes, and subspecies, has been a sacred symbol, a shelter providing relief from both heat and cold, a signpost for the lost and weary-and underneath its branches many dreams have been born. In a magical blend of art and science, the author looks not only at the cottonwood-how it grows, how it travels, and what it says-but at the roles it has played and continues to play in the art, health, and history of North America. If you need the science, you will find it here-if you need the human heart, you will find it here as well. "Champion" means winner, defender, something outstanding-a hero. After reading The Cottonwood Tree: An American Champion you will see why this remarkable tree stands so tall in the American landscape. Book jacket.
Author: Wayne A. Sinclair Publisher: Ithaca, N.Y. : Comstock Pub. Associates ISBN: Category : Gardening Languages : en Pages : 584
Book Description
Diseases of Trees and Shrubs is a comprehensive pictorial survey of the diseases of, as well as the environmental damage to, forest and shade trees and woody ornamental plants in the United States and Canada. An authoritative reference, it is also a reliable and handy diagnostic tool that will simplify the identification of specific plant diseases by focusing on signs and symptoms that can be seen with the unaided eye or with a hand lens. This long-needed book gives readers complete, up-to-date information in an easily understood and convenient way. Each of the 247 color plates faces a page of explanatory text covering the biology and ecology (including host and geographic ranges) of the disease-causing agents (pathogens), a list of key references (there are more than 2,250), and, in some cases, black-and-white illustrations of pathogens. Selected information about biological and cultural control is provided. Scientific terms other than Latin names of pathogens are used only when necessary, and a glossary of terms and a comprehensive index are included. The color plates contain more than 1,700 illustrations of the diseases and injuries that some 350 biological agents and environmental factors cause to more than 250 species of plants. The book also serves as a guide to hundreds of other diseases related to those shown. The authors have used three levels of organization for this book. At the first level, diseases caused by biological agents are separated from those caused by environmental stimuli. At the second level, most diseases are grouped according to the plant part affected: leaves, twigs, limbs, roots, trunks, or the entire plant. At the third level, diseases are presented according to the taxonomic relationships among the pathogens. For this major project, the authors examined and photographed diseases and environmental damage in the field, visiting more than 50 states and Canadian provinces. Their book reflects the most important developments in fungal biology and taxonomy, plant bacteriology, virology, and environmentally induced stress in plants. It summarizes information about newly discovered diseases and provides up-to-date accounts of olds ones. Diseases of Trees and Shrubs can be profitable reading for anyone whose technical training does not extend beyond general biology, yet will also be informative to advanced students and plant pathologists. It will be welcomed by agricultural and horticultural advisers, plant inspectors, arborists, nursery professionals, landscapers, foresters, and urban planners. Wayne A. Sinclair is a Professor of Plant Pathology, Howard H. Lyon is Biological Photographer (retired), Department of Plant Pathology, and Warren T. Johnson is Professor of Entomology, all at Cornell University.
Author: David Leatherman Publisher: University Press of Colorado ISBN: Category : Insect pests Languages : en Pages : 302
Book Description
Insects and Diseases of Woody Plants of the Central Rockies gathers together information on most of the organisms associated with woody plants in Colorado and adjacent areas of the Central Rockies. These organisms include insects and mites, viruses, bacteria, fungi, parasitic plants, and vertebrates. The grouping of the organisms, the diagnostic disorders key, and the index make this publication the most comprehensive reference tool of its kind, for both industry professionals and laypersons alike.
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Author: Ramon D. Gass
Author: Kathleen Cain
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Author: Wayne A. Sinclair
Author: John F. Prevost
Author: William C. Woodruff
Author: David Leatherman
Author: Bernhard Schink