Weeds, Trees, and Herbicides PDF Download

Author: Dennis R. Hamel
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 64

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Author: Bruce Roy
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 326

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A popular and indispensable tool in the identification and management of weeds in New Zealand, now in its second edition. Colour photographs and simple text aid in identification. Plants are listed by both botanical and common names, and indexes enable easy searching. The usefulness and toxicity of plants are also addressed. This expanded edition contains many new and clearer photographs and several species which didn't feature in the first edition, including all the woody ferns and some additional trees, such as Lodgepole pine (Pinus contorta). The text has also been modified to accommodate recent changes to the legislation governing pest plants.

Author: France Royer
Publisher: University of Alberta
ISBN: 9781551052212
Category : Gardening
Languages : en
Pages : 484

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Author: Denver Botanic Gardens
Publisher: Timber Press
ISBN: 1604698691
Category : Nature
Languages : en
Pages : 501

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for loving where you live. Wildflowers of the Rocky Mountain Region is a comprehensive field guide for anyone wishing to learn about the amazingly diverse wildflowers of the region. Organized by flower color and shape, and including a range map for each flower described, the guide is as user-friendly as it is informative. This must-have book is perfect for hikers, naturalists, and native plant enthusiasts. Covers the entire Rocky Mountain range from Canada south to New Mexico, separated into Northern Rockies, Middle Rockies, and Southern Rockies Describes and illustrates nearly 1,200 commonly encountered species Includes perennials, annuals, biennials, vines, shrubs, and subshrubs, both native and non-native 1,245 superb color photographs and 1,189 range maps User-friendly organization by flower color, shape, and petal count

Author: Peter A. Follett
Publisher: Springer Science & Business Media
ISBN: 1461545773
Category : Science
Languages : en
Pages : 314

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Book Description
Nontarget Effects of Biological Control is the first book of its kind. The environmental safety of biological control has come under scrutiny due to several areas of concerns: the irreversibility of alien introductions, the prevalence of host switching to innocuous native or beneficial species, dispersal of the biocontrol agent to new habitats away from croplands, and the lack of research on the efficacy and impact of biocontrol attempts. The debate has been strongly polarized between conservationists and biological control practitioners. Nontarget Effects of Biological Control proposes that retrospective analyses of systems in place in which nontarget effects are now documented or suspected provide the necessary information for planning and evaluating future releases to reduce risk. The book presents case histories of past biological control introductions from island and continental ecosystems.

Author:
Publisher: University of New Mexico Press
ISBN: 0826360696
Category : Nature
Languages : en
Pages : 794

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Book Description
George C. West provides a simple and quick guide written especially for amateur plant lovers, nature enthusiasts, interested hikers, tourists, and botanists who want to learn more about the plants of the White Mountains in east-central Arizona. The book is neatly organized into three parts, which include woody trees; all other annual, biennial, and perennial flowers, shrubs, and vines; and ferns. This useful guide is written in accessible language that makes it easy to identify over five hundred plant species found in the region. More than a thousand incredible color photographs of flowers, leaves, and other features provide nuanced detail that helps the reader differentiate various species of flowering plants, trees, and ferns. Guide to the Plants of Arizona's White Mountains is a must-have reference for all outdoor enthusiasts exploring this popular region of the Southwest.

Author: David V. Alford
Publisher: CRC Press
ISBN: 1482262614
Category : Nature
Languages : en
Pages : 256

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CHOICE Highly recommended 2020 Insects are key components of life on our planet, and their presence is essential for maintaining balanced terrestrial ecosystems. Without insects humans would struggle to survive, and on a world scale food production would be severely compromised. Many plants and animals depend directly or indirectly on insects for their very survival, and this is particularly so in the case of insectivorous birds and other such creatures. The beneficial role of insects is often overlooked or misunderstood, and in farming circles their very presence on crops is often seen to be unwelcome. In reality, however, many insects are genuinely beneficial, as in the case of parasitic and predacious species. The use of chemical pesticides to control crop pests is becoming more tightly regulated and environmentally undesirable, and low-input farming, in which natural enemies of pests are encouraged to survive or increase, is becoming far more prevalent. Accordingly, Integrated Pest Management (IPM) and Integrated Pest Management (ICM) strategies are increasingly being developed, advocated and adopted. Features: Highlights information on many groups of insects and mites that act as natural enemies or biological control agents of phytophagous insects and mites, including plant pests. Profusely illustrated with high-quality colour photographs. Focuses mainly on insects and mites as natural enemies of plant pests, including parasitic and predacious species that have been accidentally or deliberately introduced in classical biological control programmes. Reviews the role of phytophagous European insects and mites in controlling or managing European plants that have become invasive weeds in other parts of the world, notably North America, Australia and New Zealand.

Author:
Publisher: Government Printing Office
ISBN: 9780160729966
Category : Gardening
Languages : en
Pages : 310

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NOTE: NO FURTHER DISCOUNT FOR THIS PRODUCT -- Significantly reduced price -- Overstock List Price Describes invasive, non-native plants moving into Alaska.

Author: S. Inderjit
Publisher: Springer Science & Business Media
ISBN: 3764373806
Category : Science
Languages : en
Pages : 286

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Book Description
Invasive plants have an impact on global biodiversity and ecosystem function, and their management is a complex task. The aim of this book is to discuss fundamental questions of invasion ecology, such as why particular communities become more invasible than others, what the mechanisms of exclusion of native species by invaders are, and whether invasion can be predicted. In addition, agricultural practices influencing invasion, the environmental and economic costs of invasion as well as possible management strategies are discussed. Readers will get a unique perspective on invasion ecology through employing general principles of ecology to plant invasions.

Author: Canadian Pest Management Society
Publisher:
ISBN:
Category : Pesticides
Languages : en
Pages : 770

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