An Evaluation of Biological Control of Linaria Dalmatica with Mecinus Janthinus in Oregon

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ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (869 download)

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Book Synopsis An Evaluation of Biological Control of Linaria Dalmatica with Mecinus Janthinus in Oregon by : Alexander Guy Park

Download or read book An Evaluation of Biological Control of Linaria Dalmatica with Mecinus Janthinus in Oregon written by Alexander Guy Park and published by . This book was released on 2014 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities of Dalmatian toadflax and improve ecological integrity. This retrospective study sought to answer [1] What impact has M. janthinus had on reducing densities of Dalmatian toadflax, [2] Is M. janthinus spreading naturally to new sites, [3] Should ODA still facilitate spread of the agent, [4] If the program is successful, what is the long-term benefit acquired from this biological control program? These questions were answered using historical biological release forms and monitoring data, and a 2013 state-wide survey of Dalmatian toadflax and M. janthinus. The results show that M. janthinus has reduced average Dalmatian toadflax densities from 9.45 ± 1.34/m2 prior to release, to 5.5 ± 1.1/m2 after release. It was also found that the weevil has naturally migrated beyond their original release sites, and that there was no correlation between distance from release site and abundance of the weevil. These results indicate that ODA and its partners no longer need to distribute M. janthinus. Predictive modeling indicates that the current infestation of Dalmatian toadflax has reached 1% of its mean biological potential, while further expansion will be limited by the presence of M. janthinus. Reduction of plant density through biocontrol is of particular benefit to cattle production in Oregon where conventional control strategies of Dalmatian toadflax could reduce the annual value per acre of grazed land could be reduced by 6.5%.

Biology and Biological Control of Dalmatian and Yellow Toadflax

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ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Biology and Biological Control of Dalmatian and Yellow Toadflax by :

Download or read book Biology and Biological Control of Dalmatian and Yellow Toadflax written by and published by . This book was released on 2005 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Impacts of a Stem Boring Weevil, Mecinus Janthinus, on Dalmatian Toadflax, Linaria Dalmatica

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ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (32 download)

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Book Synopsis The Impacts of a Stem Boring Weevil, Mecinus Janthinus, on Dalmatian Toadflax, Linaria Dalmatica by : Marjolein Schat

Download or read book The Impacts of a Stem Boring Weevil, Mecinus Janthinus, on Dalmatian Toadflax, Linaria Dalmatica written by Marjolein Schat and published by . This book was released on 2008 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classical biological control of weeds is generally considered an effective, safe, and cost effective tool for controlling widespread weeds in natural areas. However, only 60% of releases have become established and, of those, only 50% have led to control. Therefore, understanding the impacts of agents on target weeds across spatial scales, at different insect densities, and over time can give biological control practitioners the knowledge necessary to improve establishment and success rates. My studies characterized the impacts the biological control agent, Mecinus janthinus, on the rangeland weed Dalmatian toadflax (Linaria dalmatica) at individual plant and plant population scales. Individual plant studies were conducted in a garden and replicated on plants growing in the field, to measure the impact of agents on plant growth and primary physiology. The population study followed operational scale releases of M. janthinus for three to four years using intensive monitoring to characterize L. dalmatica cover, density, and population structure, and weevil establishment and population increase. I also evaluated which parameters were most important to measure to determine establishment and success. In the common garden experiment, M. janthinus injury was found to reduce relative plant growth, as well as root, stem, and reproductive biomass at medium and high adult densities. Trends of reduced photosynthetic, conductance, or transpiration rates with increasing M. janthinus density were observed. In the field experiment, M. janthinus injury led to reduced growth. Gas exchange rates decreased over the season and were lower in plants exposed to high larval and adult herbivore pressure. Field monitoring indicated successful M. janthinus establishment at releases across a range of elevations, slopes, and geographic locations, though high rates of overwintering mortality were observed at all sites. Linaria dalmatica cover was variable within watersheds and patches, and also differed between watersheds. Abundance of L. dalmatica decreased over time based on cover measurements, but did not change over time with respect to density. The proportion of mature L. dalmatica stems decreased over time. The majority of changes in L. dalmatica over time were the same in release and control transects and could not be attributed to M. janthinus.

Ecological Interactions of Biological Control Agent, Mecinus Janthinus Germar, and Its Target Host, Linaria Dalmatica (L.) Mill

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Ecological Interactions of Biological Control Agent, Mecinus Janthinus Germar, and Its Target Host, Linaria Dalmatica (L.) Mill by : Vanessa A. Carney

Download or read book Ecological Interactions of Biological Control Agent, Mecinus Janthinus Germar, and Its Target Host, Linaria Dalmatica (L.) Mill written by Vanessa A. Carney and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

108-1 Hearings: Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations For 2004, Part 4, March 13, 2003, *

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ISBN 13 :
Total Pages : 1148 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis 108-1 Hearings: Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations For 2004, Part 4, March 13, 2003, * by :

Download or read book 108-1 Hearings: Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations For 2004, Part 4, March 13, 2003, * written by and published by . This book was released on 2003 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations for 2004

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ISBN 13 :
Total Pages : 1544 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations for 2004 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Agriculture, Rural Development, Food and Drug Administration, and Related Agencies

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Field Guide for the Biological Control of Weeds in the Northwest

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Publisher : Government Printing Office
ISBN 13 : 9780160942891
Total Pages : 338 pages
Book Rating : 4.9/5 (428 download)

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Book Synopsis Field Guide for the Biological Control of Weeds in the Northwest by : Rachel Winston

Download or read book Field Guide for the Biological Control of Weeds in the Northwest written by Rachel Winston and published by Government Printing Office. This book was released on 2017-12-13 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide focuses on the most problematic weeds in eastern North America for which there are at least some biocontrol agents established and/or available. Multiple photos and descriptions of each weed included in this guide emphasize key identification traits and plant ecology. For each weed included in this guide, all biocontrol agents released or currently found in North America are described individually. Photos highlighting key identification features and damage are included. The release history, current status, and recommended use of each biocontrol agent are described in detail. Recommendations and current impact often vary between the US and Canada, therefore, the information is presented separately. Includes international code of best practices for classical biological control of weeds.

Biological Control of Weeds

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Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Biological Control of Weeds by : M. H. Julien

Download or read book Biological Control of Weeds written by M. H. Julien and published by Oxford University Press, USA. This book was released on 1998 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each entry details the target weed, control agent, year of first release, country of origin of agent, status and degree of control, research organisation involved, and key references. The catalogue format has been modified slightly from earlier editions to improve ease of use. The book provides an invaluable means of keeping track of the world situation, and is a handy reference for professionals, research workers and students interested in the biological control of weeds.

Biologie Des Mauvaises Herbes Du Canada

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ISBN 13 :
Total Pages : 528 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Biologie Des Mauvaises Herbes Du Canada by : Paul Brethen Cavers

Download or read book Biologie Des Mauvaises Herbes Du Canada written by Paul Brethen Cavers and published by . This book was released on 2005 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Non-Chemical Weed Control

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Publisher : Academic Press
ISBN 13 : 0128098821
Total Pages : 174 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Non-Chemical Weed Control by : Khawar Jabran

Download or read book Non-Chemical Weed Control written by Khawar Jabran and published by Academic Press. This book was released on 2018-01-03 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-Chemical Weed Control is the first book to present an overview of plant crop protection against non-food plants using non-chemical means. Plants growing wild—particularly unwanted plants found in cultivated ground to the exclusion of the desired crop—have been treated with herbicides and chemical treatments in the past. As concern over environmental, food and consumer safety increases, research has turned to alternatives, including the use of cover crops, thermal treatments and biotechnology to reduce and eliminate unwanted plants. This book provides insight into existing and emerging alternative crop protection methods and includes lessons learned from past methodologies. As crop production resources decline while consumer concerns over safety increase, the effective control of weeds is imperative to insure the maximum possible levels of soil, sunlight and nutrients reach the crop plants. Allows reader to identify the most appropriate solution based on their individual use or case Provides researchers, students and growers with current concepts regarding the use of modern, environment-friendly weed control techniques Presents methods of weed management—an important part of integrated weed management in the future Exploits the knowledge gained from past sustainable weed management efforts

Invasive Species in Forests and Rangelands of the United States

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Publisher : Springer Nature
ISBN 13 : 3030453677
Total Pages : 455 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Invasive Species in Forests and Rangelands of the United States by : Therese M. Poland

Download or read book Invasive Species in Forests and Rangelands of the United States written by Therese M. Poland and published by Springer Nature. This book was released on 2021-02-01 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade. This multi-disciplinary book, written by over 100 national experts, presents the latest research on a wide range of natural science and social science fields that explore the ecology, impacts, and practical tools for management of invasive species. It covers species of all taxonomic groups from insects and pathogens, to plants, vertebrates, and aquatic organisms that impact a diversity of habitats in forests, rangelands and grasslands of the United States. It is well-illustrated, provides summaries of the most important invasive species and issues impacting all regions of the country, and includes a comprehensive primary reference list for each topic. This scientific synthesis provides the cultural, economic, scientific and social context for addressing environmental challenges posed by invasive species and will be a valuable resource for scholars, policy makers, natural resource managers and practitioners.

Insect Outbreaks Revisited

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Publisher : John Wiley & Sons
ISBN 13 : 1118253841
Total Pages : 709 pages
Book Rating : 4.1/5 (182 download)

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Book Synopsis Insect Outbreaks Revisited by : Pedro Barbosa

Download or read book Insect Outbreaks Revisited written by Pedro Barbosa and published by John Wiley & Sons. This book was released on 2012-06-29 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: The abundance of insects can change dramatically from generation to generation; these generational changes may occur within a growing season or over a period of years. Such extraordinary density changes or "outbreaks" may be abrupt and ostensibly random, or population peaks may occur in a more or less cyclic fashion. They can be hugely destructive when the insect is a crop pest or carries diseases of humans, farm animals, or wildlife. Knowledge of these types of population dynamics and computer models that may help predict when they occur are very important. This important new book revisits a subject not thoroughly discussed in such a publication since 1988 and brings an international scale to the issue of insect outbreaks. Insect Outbreaks Revisited is intended for senior undergraduate and graduate students in ecology, population biology and entomology, as well as government and industry scientists doing research on pests, land managers, pest management personnel, extension personnel, conservation biologists and ecologists, and state, county and district foresters.

Invasive Plants on the Move

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ISBN 13 : 9781886679283
Total Pages : 394 pages
Book Rating : 4.6/5 (792 download)

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Book Synopsis Invasive Plants on the Move by : Etats-Unis. Federal highway administration

Download or read book Invasive Plants on the Move written by Etats-Unis. Federal highway administration and published by . This book was released on 2009 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Biological Control Programmes in Canada 2001-2012

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Publisher : CABI
ISBN 13 : 1780642571
Total Pages : 544 pages
Book Rating : 4.7/5 (86 download)

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Book Synopsis Biological Control Programmes in Canada 2001-2012 by : Peter G Mason

Download or read book Biological Control Programmes in Canada 2001-2012 written by Peter G Mason and published by CABI. This book was released on 2013-10-21 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Canada is a world leader in biological control research. Reporting the status of biocontrol agents released in Canada over the last decade, this book presents case studies by target pest that evaluate the impact of biocontrol and recommend future priorities. In addition to a new chapter on future targets and an appendix listing established agents, this edition contains information of interest to a global audience, and chapters that address effects of invasive species and climate change.

Proceedings of the XII International Symposium on Biological Control of Weeds

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Publisher : CABI
ISBN 13 : 1845935071
Total Pages : 768 pages
Book Rating : 4.8/5 (459 download)

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Book Synopsis Proceedings of the XII International Symposium on Biological Control of Weeds by : R. Sforza

Download or read book Proceedings of the XII International Symposium on Biological Control of Weeds written by R. Sforza and published by CABI. This book was released on 2008 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the research findings in various aspects of weed biocontrol, this volume explores weed biology and ecology and the economic impacts, effectiveness and practical implications of weed management strategies. It is of interest to researchers and students in plant and environmental sciences.

Weed Management Handbook

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Publisher : John Wiley & Sons
ISBN 13 : 0470750383
Total Pages : 432 pages
Book Rating : 4.4/5 (77 download)

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Book Synopsis Weed Management Handbook by : Robert E. L. Naylor

Download or read book Weed Management Handbook written by Robert E. L. Naylor and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weed Management Handbook updates the 8th edition of Weed Control Handbook (1990). The change in the title and contents of the book from previous editions reflects both the current emphasis on producing crops in a sustainable and environmentally-friendly manner, and the new weed management challenges presenting themselves. This landmark publication contains cutting edge chapters, each written by acknowledged experts in their fields and carefully drawn together and edited by Professor Robert Naylor, known and respected world-wide for his knowledge of the area. The sequence of chapters included reflects a progression from the biology of weeds, through the underpinning science and technology relating to weed management techniques including herbicides and their application to crops, leading to principles of weed management techniques. Finally a set of relevant case studies describes the main management options available and addresses the challenges of reduced chemical options in many crops. Weed Management Handbook is a vital tool for all those involved in the crop protection / agrochemical industry, including business managers, horticultural and agricultural scientists, plant physiologists, botanists and those studying and teaching BASIS courses. As an important reference guide for undergraduate and postgraduate students studying horticultural and agricultural sciences, plant physiology, botany and crop protection, copies of the book should be available on the shelves of all research establishments and universities where these subjects are studied and taught. Weed Management Handbook is published for the British Crop Protection Council (BCPC) by Blackwell Publishing.

Critical Issues in Biological Control

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ISBN 13 : 9780471199427
Total Pages : pages
Book Rating : 4.1/5 (994 download)

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Book Synopsis Critical Issues in Biological Control by : Manfred MacKauer

Download or read book Critical Issues in Biological Control written by Manfred MacKauer and published by . This book was released on 1998-04-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: