Here, at last, is a lavishly illustrated manual for ready identification of 299 common and economically important weeds in the region south to Virginia, north to Maine and southern Canada, and west to Wisconsin. Based on vegetative rather than floral characteristics, this practical guide gives anyone who works with plants the ability to identify weeds before they flower.*A dichotomous key to all the species described in the book is designed to narrow the choices to a few possible species. Identification can then be confirmed by reading the descriptions of the species and comparing a specimen with the drawings and photographs.*A fold-out grass identification table provides diagnostic information for weedy grasses in an easy-to-use tabular key.*Specimens with unusual vegetative characteristics, such as thorns, square stems, whorled leaves, or milky sap, can be rapidly identified using the shortcut identification table. The first comprehensive weed identification manual available for the Northeast, this book will facilitate appropriate weed management strategy in any horticultural or agronomic cropping system and will also serve home gardeners and landscape managers, as well as pest management specialists and allergists.
This encyclopedic yet easy-to-use 2-volume set covers 262 individual entries, including a full description of 451 species and another 361 plants compared as similar species, representing 63 plant families. 13 shortcut identification tables for groups that share similar, unusual, or relatively uncommon characteristics. 2 grass identification keys - a key to all characteristics including inflorescences and reproductive parts and a key to vegetative characteristics only. 67 tables comparing important characteristics of difficult-to-distinguish weedy species. Color photos of over 700 weeds including seeds, seedlings, flowers, and mature plants. Appendix of non-native plants rarely or occasionally naturalized in California. Glossary of botanical terms. Bibliography of some of the most pertinent publications. Index to common names, scientific names, and synonyms. Each entry describes the plant category, family name, common name, and synonyms along with a summary of the important aspects of the plant’s life cycle, size, growth form, impact, method of introduction, and toxicity. You'll also find a description of the seedling, mature plant, roots and underground structures, flowers, fruits and seeds, spikelets and florets, spore-bearing structures, and post senescence characteristics for each entry. Also includes a description of the habitat where each is typically found and distribution in California, other states, and worldwide, along with maximum elevation at which the species is found. Rounding out each entry is a description of the methods of reproduction, seed dispersal, germination requirements and conditions, seed survival and longevity, early establishment characteristics and requirements, cultural practices and management options that have proven effective or ineffective in controlling infestations, and a notation of the species' inclusion on federal or state noxious weed lists.
Invasive Plants of the Upper Midwest is an informative, colorful, comprehensive guide to invasive species that are currently endangering native habitats in the region. It will be an essential resource for land managers, nature lovers, property owners, farmers, landscapers, educators, botanists, foresters, and gardeners. Invasive plants are a growing threat to ecosystems everywhere. Often originating in distant climes, they spread to woodlands, wetlands, prairies, roadsides, and backyards that lack the biological controls which kept these plant populations in check in their homelands. Invasive Plants of the Upper Midwest includes more than 250 color photos that will help anyone identify problem trees, shrubs, vines, grasses, sedges, and herbaceous plants (including aquatic invaders). The text offers further details of plant identification; manual, mechanical, biological, and chemical control techniques; information and advice about herbicides; and suggestions for related ecological restoration and community education efforts. Also included are literature references, a glossary, a matrix of existing and potential invasive species in the Upper Midwest, an index with both scientific and common plant names, advice on state agencies to contact with invasive plant questions, and other helpful resources. The information in this book has been carefully reviewed by staffs of the Wisconsin Department of Natural Resources Bureau of Endangered Resources and the University of Wisconsin-Madison Arboretum and other invasive plant experts.
It is important that scientists think about and know their history - where they came from, what they have accomplished, and how these may affect the future. Weed scientists, similar to scientists in many technological disciplines, have not sought historical reflection. The technological world asks for results and for progress. Achievement is important not, in general, the road that leads to achievement. What was new yesterday is routine today, and what is described as revolutionary today may be considered antiquated tomorrow. Weed science has been strongly influenced by technology developed by supporting industries, subsequently employed in research and, ultimately, used by farmers and crop growers. The science has focused on results and progress. Scientists have been--and the majority remain--problem solvers whose solutions have evolved as rapidly as have the new weed problems needing solutions. In a more formal sense, weed scientists have been adherents of the instrumental ideology of modern science. That is an analysis of their work, and their orientation reveals the strong emphasis on practical, useful knowledge; on know how. The opposite, and frequently complementary orientation, that has been missing from weed science is an emphasis on contemplative knowledge; that is, knowing why. This book expands on and analyzes how these orientations have affected weed science’s development. The first analytical history of weed science to be written Compares the development of weed science, entomology and plant pathology Identifies the primary founders of weed science and describes their role
Natural history narratives for more than 300 species of mammals, birds, reptiles, and amphibians found in Pennsylvania and throughout the northeastern United States-written in an engaging, straightforward style. An invaluable addition to any nature-lover's library. Each narrative offers a species description as well as up-to-date information on habitat, breeding behavior, feeding habits, biology, migration, and current population status, as well as the author's personal observations of the animal's life in the wild. Includes game and nongame mammals, birds of prey, songbirds, waterfowl, snakes, turtles, frogs, toads, and more.
What if, one step at a time, we could make our gardens and landscapes more eco-friendly? Barbara W. Ellis's colorful, comprehensive guide shows homeowners, gardeners, garden designers, and landscapers how to do just that for the large and beautiful Chesapeake Bay watershed region. This area includes Maryland, Virginia, Delaware, Washington, D.C., and part of West Virginia (translating to portions of USDA Zones 6, 7, and 8). Here, mid-Atlantic gardeners, from beginners to advanced, will find the essential tools for taking steps to make their gardens part of the solution through long-term planning and planting. The guide is built from the ground up around six simple but powerful principles that anyone can use: * Reduce lawn * Build plant diversity * Grow native plants * Manage water runoff * Welcome wildlife * Garden wisely Included are detailed instructions for assessing and designing your particular garden or landscape site; choosing and caring for trees, shrubs, vines, ground covers, and flowers; and succeeding with such conditions as shade or poor soil. From rain gardens to woodland gardens, meadow gardens to wildlife gardens, and much more, this indispensable guide features more than 300 color photographs.
On weed demography; Biological control of weeds; Tge use of quantitative structure activity relationships in the development of new herbicides and plant growth regulators; New herbicides; Herbicide application; The control of perennial weeds; Localised control of submerged aquatic weeds with herbicides; Recent research on weed management new light on an old practice; Weed control in nursery stock and amenity plantings; The mode of action of herbicides.
This is by far the best and most comprehensive manual and illustrated guide to native and naturalized vascular plants—ferns, conifers, and flowering plants—growing in aquatic and wetland habitats in northeastern North America, from Newfoundland west to Minnesota and south to Virginia and Missouri. Published in two volumes, this long-awaited work completely revises and greatly expands Norman Fassett’s 1940 classic A Manual of Aquatic Plants, yet retains the features that made Fassett’s book so useful. Features include: * coverage of 1139 plant species, 1186 taxa, 295 genera, 109 families * more than 600 pages of illustrations, and illustrations for more than 90% of the taxa * keys for each species include references to corresponding illustrations * habitat information, geographical ranges, and synonomy * a chapter on nuisance aquatic weeds * glossaries of botanical and habitat terms * a full index for each volume Wetland ecologists, botanists, resource managers, public naturalists, and environmentalists concerned with the preservation of wetland areas, which are increasingly threatened, will welcome this clear, workable, and comprehensive guide.