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Author: Jesse M. Hodgson
Publisher:
ISBN:
Category : Thistles
Languages : en
Pages : 12
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Book Description
Author: Jesse M. Hodgson
Publisher:
ISBN:
Category : Thistles
Languages : en
Pages : 12
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Book Description
Author: Jesse M. Hodgson
Publisher: Forgotten Books
ISBN: 9780331382433
Category :
Languages : en
Pages : 20
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Book Description
Excerpt from Canada Thistle and Its Control Canada thistle,2 a perennial weed, seriously reduces crop yields wherever sizable infestations occur. Infestations occur throughout the northern half of the United States. As shown in figure 1, the Montana Idaho Washington Wyoming area and the Minnesota Wisconsin area have the most severe infestations. In Montana, Idaho, and Washington, Canada thistle is reported to cause heavier losses than any other perennial weed. This weed can be controlled by cropping and cultural practices and by applying herbicides. 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: Jesse M. Hodgson
Publisher:
ISBN:
Category : Thistles
Languages : en
Pages : 0
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Book Description
Author: Carla C. Bossard
Publisher: Univ of California Press
ISBN: 9780520225466
Category : Invasive plants
Languages : en
Pages : 366
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Book Description
"Invasive nonnative plants threaten native species with habitat loss, displacement, and severe population declines, thus seriously reducing biodiversity. Invasive Plants of California's Wildlands is a tremendous source for land managers and others who are interested in protecting the rich natural heritage of California and surrounding states."--John C. Sawhill, President and CEO, The Nature Conservancy
Author: Jesse M. Hodgson
Publisher:
ISBN:
Category : Canada thistle
Languages : en
Pages : 36
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Book Description
Author: Joseph M. DiTomaso
Publisher: UCANR Publications
ISBN: 1879906694
Category : Technology & Engineering
Languages : en
Pages : 979
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Book Description
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.
Author: Charles Fletcher Rogers
Publisher:
ISBN:
Category : Canada thistle
Languages : en
Pages : 52
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Book Description
Author: Bruce Ackley
Publisher: The Ohio State University
ISBN:
Category : Nature
Languages : en
Pages : 214
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Book Description
This identification guide provides technical descriptions and photos for Ohio’s 21 invasive and noxious weed species. These descriptions include information on habitat, life cycle, key plant characteristics, and a summary of problematic features. Photos included in this guide present the weed species at different stages of maturity for optimal identification aid. This book also provides information on Ohio’s noxious seed law, extension guides to weed control, and a quick guide to weed regulations in Ohio law.
Author: Joanna Katarzyna Sciegienka
Publisher:
ISBN:
Category : Canada thistle
Languages : en
Pages : 232
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Book Description
Canada thistle (Cirsium arvense (L.) Scop.) is an aggressive, introduced creeping perennial weed that flourishes in a wide variety of environments. Its deep, creeping root system and colony forming tendencies make it one of the most difficult weeds to control. A strategy that incorporates a better understanding of the biology of Canada thistle into the development of an integrated management plan that includes herbicides and biological control could help reduce the dispersal and impact of this species. The objectives of this work were to: 1) determine how Canada thistle emergence and growth are affected by changes in root size, biomass, burial depth, and soil moisture and 2) compare single and joint impacts of herbicides and biological control agents on Canada thistle growth. Objective 1 was carried out in a greenhouse and in field conditions. To monitor Canada thistle emergence and growth responses, a completely randomized factorial design was used in the greenhouse, and a randomized complete block design was used in the field. Models were developed to predict emergence and growth patterns based on available water, burial depth, and various root metrics. For the exception of available water, the same predictors were used in field conditions to predict Canada thistle emergence and growth. The variables that were manipulated were able to significantly predict the responses measured, and we concluded that available water, root burial depth, and root weight, length, diameter, and volume are indicators of emergence likelihood, emergence time, shoot and root growth, and shoot number. Objective 2 was carried out in greenhouses and field settings. Three herbicides were evaluated with and without insects to determine reduction in Canada thistle root and shoot biomass in the greenhouse. One herbicide was also used at a low rate and evaluated singly and in combination with a stem-boring weevil (Hadroplontus litura (F.)) and a pathogen (Pseudomonas syringae pv. tagetis) to determine effect on Canada thistle response in the greenhouse and field. We failed to reject our null hypothesis of additivity between control agents, and concluded that integrating individual control methods yields greater Canada thistle control than any singular method.
Author: Jesse M. Hodgson
Publisher:
ISBN:
Category : Canada thistle
Languages : en
Pages : 8
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Book Description
